ddcutil version: 1.1.1-dev Configuration file: (none) General Build Options: BUILD_SHARED_LIB: Defined ENABLE_ENVCMDS: Defined ENABLE_FAILSIM: Not defined ENABLE_UDEV: Defined USE_X11: Defined USE_LIBDRM: Not defined USE_USB: Defined WITH_ASAN: Not defined Private Build Options: TARGET_LINUX: Defined TARGET_BSD: Not defined INCLUDE_TESTCASES: Not defined Output level: Very Vebose Reporting DDC data errors: false Trace destination: sysout Trace groups active: none Traced functions: none Traced files: none Force I2C slave address: false User defined features: enabled Performance and Retry Options: Deferred sleep enabled: false Sleep suppression (reduced sleeps) enabled: true Dynamic sleep adjustment enabled: false Experimental Options: Utility option --f1 disabled: EDID read uses I2C layer Utility option --f2 disabled: Unused Utility option --f3 disabled: Unused Utility option --f4 disabled: Read strategy tests Utility option --f5 disabled: Unused Utility option --f6 disabled: Force I2c bus Utility option --i1 = -1: Unused The following tests probe the runtime environment using multiple overlapping methods. Current time (local): 2021-06-12 22:33:25 BST Current time (UTC): 2021-06-12 21:33:25 Seconds since boot: 480609 General Build Options: BUILD_SHARED_LIB: Defined ENABLE_ENVCMDS: Defined ENABLE_FAILSIM: Not defined ENABLE_UDEV: Defined USE_X11: Defined USE_LIBDRM: Not defined USE_USB: Defined WITH_ASAN: Not defined Private Build Options: TARGET_LINUX: Defined TARGET_BSD: Not defined INCLUDE_TESTCASES: Not defined *** Basic System Information *** ddcutil version: 1.1.1-dev /proc/version: Linux version 5.10.0-7-amd64 (debian-kernel@lists.debian.org) (gcc-10 (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #1 SMP Debian 5.10.40-1 (2021-05-28) Architecture: x86_64 Distributor id: Debian Release: 11 Found a known architecture /proc/cmdline: BOOT_IMAGE=/vmlinuz-5.10.0-7-amd64 root=/dev/mapper/teeth--vg-root ro quiet Compiler information: C standard: 201710 gcc compatible compiler: Compiler version: 10.2.1 Processor information as reported by lscpu: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 39 bits physical, 48 bits virtual CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 2 Core(s) per socket: 2 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 61 Model name: Intel(R) Core(TM) i3-5010U CPU @ 2.10GHz Stepping: 4 CPU MHz: 1957.070 CPU max MHz: 2000.0000 CPU min MHz: 500.0000 BogoMIPS: 4190.33 Virtualization: VT-x L1d cache: 64 KiB L1i cache: 64 KiB L2 cache: 512 KiB L3 cache: 3 MiB NUMA node0 CPU(s): 0-3 Vulnerability Itlb multihit: KVM: Mitigation: VMX disabled Vulnerability L1tf: Mitigation; PTE Inversion; VMX conditional cache flushes, SMT vulnerable Vulnerability Mds: Mitigation; Clear CPU buffers; SMT vulnerable Vulnerability Meltdown: Mitigation; PTI Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Vulnerability Spectre v2: Mitigation; Full generic retpoline, IBPB conditional, IBRS_FW, STIBP conditional, RSB filling Vulnerability Srbds: Mitigation; Microcode Vulnerability Tsx async abort: Not affected Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid rdseed adx smap intel_pt xsaveopt dtherm arat pln pts md_clear flush_l1d DMI Information from /sys/class/dmi/id: Motherboard vendor: Intel Corporation Motherboard product name: NUC5i3RYB System vendor: System product name: Chassis vendor: Chassis type: 3 - Desktop Byte order checks: Is big endian (local test): false WORDS_BIGENDIAN macro (autoconf): not defined __BYTE_ORDER__ macro (gcc): __ORDER_LITTLE_ENDIAN__ *** Primary Check 1: Identify video card and driver *** Obtaining card and driver information from /sys... Primary video controller at PCI address 0000:00:02.0 (boot_vga flag is set) Device class: x030000 VGA compatible controller Vendor: x8086 Intel Corporation Device: x1616 HD Graphics 5500 Subvendor/Subdevice: 8086/2057 Intel Corporation Driver name: i915 Driver version: Unable to determine I2C device: i2c-3 name: i915 gmbus dpb I2C device: i2c-1 name: i915 gmbus vga I2C device: i2c-6 name: DPMST I2C device: i2c-4 name: i915 gmbus dpd I2C device: i2c-2 name: i915 gmbus dpc *** Primary Check 2: Check that /dev/i2c-* exist and writable *** Current user: root (0) Checking /dev/i2c-* devices... Devices /dev/i2c-* must exist and the logged on user must have read/write permission for those devices (or at least those devices associated with monitors). Typically, this access is enabled by: - setting the group for /dev/i2c-* to i2c - setting group RW permissions for /dev/i2c-* - making the current user a member of group i2c Alternatively, this can be enabled by just giving everyone RW permission The following tests probe for these conditions. Checking for /dev/i2c-* devices... crwxrwxrwx 1 root i2c 89, 0 Jun 10 11:10 /dev/i2c-0 crwxrwxrwx 1 root i2c 89, 1 Jun 10 11:10 /dev/i2c-1 crwxrwxrwx 1 root i2c 89, 2 Jun 10 11:10 /dev/i2c-2 crwxrwxrwx 1 root i2c 89, 3 Jun 10 11:10 /dev/i2c-3 crwxrwxrwx 1 root i2c 89, 4 Jun 10 11:10 /dev/i2c-4 crwxrwxrwx 1 root i2c 89, 5 Jun 10 11:10 /dev/i2c-5 crw-rw---- 1 root i2c 89, 6 Jun 12 22:30 /dev/i2c-6 Current user (root) has RW access to all /dev/i2c-* devices. Checking for group i2c... Group i2c exists Current user is root, membership in group i2c not needed Looking for udev rules files that reference i2c: Checking rules directory /lib/udev/rules.d: /lib/udev/rules.d/60-autosuspend.rules:SUBSYSTEM=="i2c", ATTR{name}=="cyapa", \ /lib/udev/rules.d/60-i2c-tools.rules:SUBSYSTEM=="i2c-dev",KERNEL=="i2c-[0-9]*", GROUP="i2c", MODE="0660" /lib/udev/rules.d/60-sensor.rules:SUBSYSTEM=="iio", KERNEL=="iio*", SUBSYSTEMS=="usb|i2c|platform", \ Checking rules directory /run/udev/rules.d: grep: /run/udev/rules.d/*rules: No such file or directory Checking rules directory /etc/udev/rules.d: *** Primary Check 3: Check that module i2c_dev is loaded *** Checking for driver i2c_dev... sysfs reports module i2c_dev is loaded. Checking modules.builtin indicates i2c_dev is NOT built into the kernel Checking kernel configuration file indicates i2c_dev is NOT built into the kernel Loadable i2c-dev module NOT found Module i2c_dev is loaded Check that kernel module i2c_dev is being loaded by examining files where this would be specified... /etc/modules:i2c_dev /etc/modules-load.d/ddccontrol-i2c-dev.conf:# Load i2c-dev at boot to probe DDC/CI devices (displays) /etc/modules-load.d/ddccontrol-i2c-dev.conf:i2c-dev /etc/modules-load.d/modules.conf:i2c_dev grep: /run/modules-load.d/*conf: No such file or directory Check for any references to i2c_dev in /etc/modprobe.d ... grep: /run/modprobe.d/*conf: No such file or directory *** Primary Check 4: Driver specific checks *** Performing driver specific checks... No driver specific checks apply. *** Additional probes *** Scanning /proc/modules for driver environment... Found video driver module: i915 Found other loaded module: drm_kms_helper Found other loaded module: i2c_algo_bit Found other loaded module: i2c_dev Loaded drm module depends on: i915,drm_kms_helper, Found other loaded module: i2c_i801 Found other loaded module: i2c_smbus Loaded video module depends on: i915, Testing if modules are loaded using /sys... Module amdgpu is NOT loaded Module fbdev is NOT loaded Module fglrx is NOT loaded Module fturbo is NOT loaded Module i915 is loaded Module mgag200 is NOT loaded Module nvidia is NOT loaded Module nouveau is NOT loaded Module radeon is NOT loaded Module vboxvideo is NOT loaded Module vc4 is NOT loaded Module drm is loaded Module i2c_algo_bit is loaded Module i2c_dev is loaded Module i2c_piix4 is NOT loaded Module ddcci is NOT loaded Examining (3) /sys/bus/i2c/devices... /sys/bus/i2c/devices/0-0050/name: spd /sys/bus/i2c/devices/i2c-0/name: SMBus I801 adapter at 3040 /sys/bus/i2c/devices/i2c-1/name: i915 gmbus vga /sys/bus/i2c/devices/i2c-2/name: i915 gmbus dpc /sys/bus/i2c/devices/i2c-3/name: i915 gmbus dpb /sys/bus/i2c/devices/i2c-4/name: i915 gmbus dpd /sys/bus/i2c/devices/i2c-5/name: AUX C/port C /sys/bus/i2c/devices/i2c-6/name: DPMST Checking display manager environment variables... DISPLAY=(not set) WAYLAND_DISPLAY=(not set) XDG_SESSION_TYPE=(not set) Examining I2C buses, as detected by I2C layer... Current time (local): 2021-06-12 22:33:26 BST Current time (UTC): 2021-06-12 21:33:26 Seconds since boot: 480610 Detected 6 non-ignorable I2C buses: Bus /dev/i2c-1 found: true Bus /dev/i2c-1 probed: true Bus accessible: true Bus is eDP: false Bus is LVDS: false Valid bus name checked: true I2C bus has valid name: true Address 0x37 present: false Address 0x50 present: false Bus /dev/i2c-2 found: true Bus /dev/i2c-2 probed: true Bus accessible: true Bus is eDP: false Bus is LVDS: false Valid bus name checked: true I2C bus has valid name: true Address 0x37 present: false Address 0x50 present: false Bus /dev/i2c-3 found: true Bus /dev/i2c-3 probed: true Bus accessible: true Bus is eDP: false Bus is LVDS: false Valid bus name checked: true I2C bus has valid name: true Address 0x37 present: false Address 0x50 present: false Bus /dev/i2c-4 found: true Bus /dev/i2c-4 probed: true Bus accessible: true Bus is eDP: false Bus is LVDS: false Valid bus name checked: true I2C bus has valid name: true Address 0x37 present: false Address 0x50 present: false Bus /dev/i2c-5 found: true Bus /dev/i2c-5 probed: true Bus accessible: true Bus is eDP: false Bus is LVDS: false Valid bus name checked: true I2C bus has valid name: true Address 0x37 present: true Address 0x50 present: true EDID synopsis: Mfg id: DEL Model: DELL U2415 Product code: 41145 Serial number: 08DXD5AF0LLS Binary serial number: 810306643 (0x304c4c53) Manufacture year: 2015, Week: 42 Extra descriptor: Video input definition: 0xa5 - Digital Input (DisplayPort) Supported features: DPMS active-off Digital display type: RGB 4:4:4 + YCrCb 4:2:2 Standard sRGB color space: True White x,y: 0.313, 0.329 Red x,y: 0.660, 0.332 Green x,y: 0.302, 0.613 Blue x,y: 0.150, 0.063 Extension blocks: 1 EDID source: EDID hex dump: +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. Bus /dev/i2c-6 found: true Bus /dev/i2c-6 probed: true Bus accessible: true Bus is eDP: false Bus is LVDS: false Valid bus name checked: true I2C bus has valid name: true Address 0x37 present: true Address 0x50 present: true EDID synopsis: Mfg id: DEL Model: DELL U2415 Product code: 41145 Serial number: 08DXD5AF0LLS Binary serial number: 810306643 (0x304c4c53) Manufacture year: 2015, Week: 42 Extra descriptor: Video input definition: 0xa5 - Digital Input (DisplayPort) Supported features: DPMS active-off Digital display type: RGB 4:4:4 + YCrCb 4:2:2 Standard sRGB color space: True White x,y: 0.313, 0.329 Red x,y: 0.660, 0.332 Green x,y: 0.302, 0.613 Blue x,y: 0.150, 0.063 Extension blocks: 1 EDID source: EDID hex dump: +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. xrandr connection report: Can't open display Checking for possibly conflicting programs... Examining I2C buses using i2cdetect... Current time (local): 2021-06-12 22:33:26 BST Current time (UTC): 2021-06-12 21:33:26 Seconds since boot: 480610 Device /dev/i2c-0 is a SMBus or other ignorable device. Skipping i2cdetect. Probing bus /dev/i2c-1 using command "i2cdetect -y 1" 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- Probing bus /dev/i2c-2 using command "i2cdetect -y 2" 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- Probing bus /dev/i2c-3 using command "i2cdetect -y 3" 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- Probing bus /dev/i2c-4 using command "i2cdetect -y 4" 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- Probing bus /dev/i2c-5 using command "i2cdetect -y 5" 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- 37 -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- 4a 4b -- -- -- -- 50: 50 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- Probing bus /dev/i2c-6 using command "i2cdetect -y 6" 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- 37 -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: 50 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- Examining I2C buses using get-edid | parse-edid... Current time (local): 2021-06-12 22:41:07 BST Current time (UTC): 2021-06-12 21:41:07 Seconds since boot: 481072 Device /dev/i2c-0 is a SMBus or other ignorable device. Skipping get-edid | parse-edid. Probing bus /dev/i2c-1 using command "get-edid -b 1 -i | parse-edid" get-edid | parse-edid command unavailable Performing alternative scans of I2C devices using local sysenv functions... Current time (local): 2021-06-12 22:41:07 BST Current time (UTC): 2021-06-12 21:41:07 Seconds since boot: 481072 Examining device /dev/i2c-0... Device /dev/i2c-0 is a SMBus or other ignorable device. Skipping. Examining device /dev/i2c-1... Tests using read()... Without write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-1, WITHOUT initial write() using read() read failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-1, WITHOUT initial write() using read() read failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-1, WITHOUT initial write() using read() read failed. errno = ENXIO(6): No such device or address Retrying with write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-1, WITH initial write() using read() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing read failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-1, WITH initial write() using read() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing read failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-1, WITH initial write() using read() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing read failed. errno = ENXIO(6): No such device or address Tests using i2c_smbus_read_byte_data()... Without write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-1, WITHOUT initial write() using i2c_smbus_read_byte_data() i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-1, WITHOUT initial write() using i2c_smbus_read_byte_data() i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-1, WITHOUT initial write() using i2c_smbus_read_byte_data() i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Retrying with write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-1, WITH initial write() using i2c_smbus_read_byte_data() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-1, WITH initial write() using i2c_smbus_read_byte_data() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-1, WITH initial write() using i2c_smbus_read_byte_data() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Obtain and interpret EDID using normal i2c functions... Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, I2C_FUNC_SMBUS_WRITE_I2C_BLOCK Unable to read EDID, psc=ENXIO(-6): No such device or address Trying simple VCP read of feature 0x10... (try_single_getvcp_call ) Starting. vcp_feature_code=0x10. use_smbus=false Sending Get VCP Feature Command request packet: 51 82 01 10 ac Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address DDC communication failed. Examining device /dev/i2c-2... Tests using read()... Without write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-2, WITHOUT initial write() using read() read failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-2, WITHOUT initial write() using read() read failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-2, WITHOUT initial write() using read() read failed. errno = ENXIO(6): No such device or address Retrying with write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-2, WITH initial write() using read() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing read failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-2, WITH initial write() using read() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing read failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-2, WITH initial write() using read() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing read failed. errno = ENXIO(6): No such device or address Tests using i2c_smbus_read_byte_data()... Without write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-2, WITHOUT initial write() using i2c_smbus_read_byte_data() i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-2, WITHOUT initial write() using i2c_smbus_read_byte_data() i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-2, WITHOUT initial write() using i2c_smbus_read_byte_data() i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Retrying with write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-2, WITH initial write() using i2c_smbus_read_byte_data() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-2, WITH initial write() using i2c_smbus_read_byte_data() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-2, WITH initial write() using i2c_smbus_read_byte_data() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Obtain and interpret EDID using normal i2c functions... Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, I2C_FUNC_SMBUS_WRITE_I2C_BLOCK Unable to read EDID, psc=ENXIO(-6): No such device or address Trying simple VCP read of feature 0x10... (try_single_getvcp_call ) Starting. vcp_feature_code=0x10. use_smbus=false Sending Get VCP Feature Command request packet: 51 82 01 10 ac Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address DDC communication failed. Examining device /dev/i2c-3... Tests using read()... Without write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-3, WITHOUT initial write() using read() read failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-3, WITHOUT initial write() using read() read failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-3, WITHOUT initial write() using read() read failed. errno = ENXIO(6): No such device or address Retrying with write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-3, WITH initial write() using read() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing read failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-3, WITH initial write() using read() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing read failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-3, WITH initial write() using read() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing read failed. errno = ENXIO(6): No such device or address Tests using i2c_smbus_read_byte_data()... Without write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-3, WITHOUT initial write() using i2c_smbus_read_byte_data() i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-3, WITHOUT initial write() using i2c_smbus_read_byte_data() i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-3, WITHOUT initial write() using i2c_smbus_read_byte_data() i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Retrying with write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-3, WITH initial write() using i2c_smbus_read_byte_data() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-3, WITH initial write() using i2c_smbus_read_byte_data() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-3, WITH initial write() using i2c_smbus_read_byte_data() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Obtain and interpret EDID using normal i2c functions... Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, I2C_FUNC_SMBUS_WRITE_I2C_BLOCK Unable to read EDID, psc=ENXIO(-6): No such device or address Trying simple VCP read of feature 0x10... (try_single_getvcp_call ) Starting. vcp_feature_code=0x10. use_smbus=false Sending Get VCP Feature Command request packet: 51 82 01 10 ac Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address DDC communication failed. Examining device /dev/i2c-4... Tests using read()... Without write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-4, WITHOUT initial write() using read() read failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-4, WITHOUT initial write() using read() read failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-4, WITHOUT initial write() using read() read failed. errno = ENXIO(6): No such device or address Retrying with write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-4, WITH initial write() using read() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing read failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-4, WITH initial write() using read() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing read failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-4, WITH initial write() using read() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing read failed. errno = ENXIO(6): No such device or address Tests using i2c_smbus_read_byte_data()... Without write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-4, WITHOUT initial write() using i2c_smbus_read_byte_data() i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-4, WITHOUT initial write() using i2c_smbus_read_byte_data() i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-4, WITHOUT initial write() using i2c_smbus_read_byte_data() i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Retrying with write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-4, WITH initial write() using i2c_smbus_read_byte_data() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 128 byte EDID read of /dev/i2c-4, WITH initial write() using i2c_smbus_read_byte_data() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Attempting simple 256 byte EDID read of /dev/i2c-4, WITH initial write() using i2c_smbus_read_byte_data() write() of 1 byte failed, errno = ENXIO(6): No such device or address Continuing i2c_smbus_read_byte_data() failed. errno = ENXIO(6): No such device or address Obtain and interpret EDID using normal i2c functions... Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, I2C_FUNC_SMBUS_WRITE_I2C_BLOCK Unable to read EDID, psc=ENXIO(-6): No such device or address Trying simple VCP read of feature 0x10... (try_single_getvcp_call ) Starting. vcp_feature_code=0x10. use_smbus=false Sending Get VCP Feature Command request packet: 51 82 01 10 ac Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address DDC communication failed. Examining device /dev/i2c-5... Tests using read()... Without write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-5, WITHOUT initial write() using read() read() returned 128 bytes +0 +4 +8 +c 0 4 8 c +0000 03 1c f1 4f 90 05 04 03 02 07 16 01 14 1f 12 13 ...O............ +0010 20 21 22 23 09 07 07 83 01 00 00 02 3a 80 18 71 !"#........:..q +0020 38 2d 40 58 2c 45 00 06 44 21 00 00 1e 01 1d 80 8-@X,E..D!...... +0030 18 71 1c 16 20 58 2c 25 00 06 44 21 00 00 9e 01 .q.. X,%..D!.... +0040 1d 00 72 51 d0 1e 20 6e 28 55 00 06 44 21 00 00 ..rQ.. n(U..D!.. +0050 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 06 44 21 ..... .-..>...D! +0060 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +0070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c 00 ................ Attempting simple 256 byte EDID read of /dev/i2c-5, WITHOUT initial write() using read() read() returned 256 bytes +0 +4 +8 +c 0 4 8 c +0000 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 2a ...........SLL0* +0010 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 10 ....4 x:...UM.&. +0020 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 01 PT.K.qO...@..... +0030 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 36 .....(<..p.#@0 6 +0040 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 58 ..D!........08DX +0050 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 45 D5AF0LLS......DE +0060 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd 00 LL U2415. ..... +0070 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 02 1=.S... ... +0080 03 1c f1 4f 90 05 04 03 02 07 16 01 14 1f 12 13 ...O............ +0090 20 21 22 23 09 07 07 83 01 00 00 02 3a 80 18 71 !"#........:..q +00a0 38 2d 40 58 2c 45 00 06 44 21 00 00 1e 01 1d 80 8-@X,E..D!...... +00b0 18 71 1c 16 20 58 2c 25 00 06 44 21 00 00 9e 01 .q.. X,%..D!.... +00c0 1d 00 72 51 d0 1e 20 6e 28 55 00 06 44 21 00 00 ..rQ.. n(U..D!.. +00d0 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 06 44 21 ..... .-..>...D! +00e0 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c 00 ................ Retrying with write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-5, WITH initial write() using read() read() returned 128 bytes +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. Attempting simple 256 byte EDID read of /dev/i2c-5, WITH initial write() using read() read() returned 256 bytes +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. +0080 02 03 1c f1 4f 90 05 04 03 02 07 16 01 14 1f 12 ....O........... +0090 13 20 21 22 23 09 07 07 83 01 00 00 02 3a 80 18 . !"#........:.. +00a0 71 38 2d 40 58 2c 45 00 06 44 21 00 00 1e 01 1d q8-@X,E..D!..... +00b0 80 18 71 1c 16 20 58 2c 25 00 06 44 21 00 00 9e ..q.. X,%..D!... +00c0 01 1d 00 72 51 d0 1e 20 6e 28 55 00 06 44 21 00 ...rQ.. n(U..D!. +00d0 00 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 06 44 ...... .-..>...D +00e0 21 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 !............... +00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c ................ Tests using i2c_smbus_read_byte_data()... Without write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-5, WITHOUT initial write() using i2c_smbus_read_byte_data() 128 bytes were read +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. Attempting simple 256 byte EDID read of /dev/i2c-5, WITHOUT initial write() using i2c_smbus_read_byte_data() 256 bytes were read +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. +0080 02 03 1c f1 4f 90 05 04 03 02 07 16 01 14 1f 12 ....O........... +0090 13 20 21 22 23 09 07 07 83 01 00 00 02 3a 80 18 . !"#........:.. +00a0 71 38 2d 40 58 2c 45 00 06 44 21 00 00 1e 01 1d q8-@X,E..D!..... +00b0 80 18 71 1c 16 20 58 2c 25 00 06 44 21 00 00 9e ..q.. X,%..D!... +00c0 01 1d 00 72 51 d0 1e 20 6e 28 55 00 06 44 21 00 ...rQ.. n(U..D!. +00d0 00 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 06 44 ...... .-..>...D +00e0 21 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 !............... +00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c ................ Retrying with write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-5, WITH initial write() using i2c_smbus_read_byte_data() 128 bytes were read +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. Attempting simple 256 byte EDID read of /dev/i2c-5, WITH initial write() using i2c_smbus_read_byte_data() 256 bytes were read +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. +0080 02 03 1c f1 4f 90 05 04 03 02 07 16 01 14 1f 12 ....O........... +0090 13 20 21 22 23 09 07 07 83 01 00 00 02 3a 80 18 . !"#........:.. +00a0 71 38 2d 40 58 2c 45 00 06 44 21 00 00 1e 01 1d q8-@X,E..D!..... +00b0 80 18 71 1c 16 20 58 2c 25 00 06 44 21 00 00 9e ..q.. X,%..D!... +00c0 01 1d 00 72 51 d0 1e 20 6e 28 55 00 06 44 21 00 ...rQ.. n(U..D!. +00d0 00 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 06 44 ...... .-..>...D +00e0 21 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 !............... +00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c ................ Obtain and interpret EDID using normal i2c functions... Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, I2C_FUNC_SMBUS_WRITE_I2C_BLOCK Raw EDID: +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. EDID synopsis: Mfg id: DEL Model: DELL U2415 Product code: 41145 Serial number: 08DXD5AF0LLS Binary serial number: 810306643 (0x304c4c53) Manufacture year: 2015, Week: 42 Extra descriptor: Video input definition: 0xa5 - Digital Input (DisplayPort) Supported features: DPMS active-off Digital display type: RGB 4:4:4 + YCrCb 4:2:2 Standard sRGB color space: True White x,y: 0.313, 0.329 Red x,y: 0.660, 0.332 Green x,y: 0.302, 0.613 Blue x,y: 0.150, 0.063 Extension blocks: 1 EDID source: Attempt 1 to read and parse EDID succeeded Trying simple VCP read of feature 0x10... (try_single_getvcp_call ) Starting. vcp_feature_code=0x10. use_smbus=false Sending Get VCP Feature Command request packet: 51 82 01 10 ac Reading Get Feature Reply response packet read() returned 6e 88 02 00 10 00 00 64 00 5a 9a Attempt 1 to read feature succeeded. DDC communication succeeded Examining device /dev/i2c-6... Tests using read()... Without write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-6, WITHOUT initial write() using read() read() returned 128 bytes +0 +4 +8 +c 0 4 8 c +0000 03 1c f1 4f 90 05 04 03 02 07 16 01 14 1f 12 13 ...O............ +0010 20 21 22 23 09 07 07 83 01 00 00 02 3a 80 18 71 !"#........:..q +0020 38 2d 40 58 2c 45 00 06 44 21 00 00 1e 01 1d 80 8-@X,E..D!...... +0030 18 71 1c 16 20 58 2c 25 00 06 44 21 00 00 9e 01 .q.. X,%..D!.... +0040 1d 00 72 51 d0 1e 20 6e 28 55 00 06 44 21 00 00 ..rQ.. n(U..D!.. +0050 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 06 44 21 ..... .-..>...D! +0060 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +0070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c 00 ................ Attempting simple 256 byte EDID read of /dev/i2c-6, WITHOUT initial write() using read() read failed. errno = EIO(5): Input/output error Retrying with write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-6, WITH initial write() using read() read() returned 128 bytes +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. Attempting simple 256 byte EDID read of /dev/i2c-6, WITH initial write() using read() read failed. errno = EIO(5): Input/output error Tests using i2c_smbus_read_byte_data()... Without write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-6, WITHOUT initial write() using i2c_smbus_read_byte_data() 128 bytes were read +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. Attempting simple 256 byte EDID read of /dev/i2c-6, WITHOUT initial write() using i2c_smbus_read_byte_data() 256 bytes were read +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. +0080 02 03 1c f1 4f 90 05 04 03 02 07 16 01 14 1f 12 ....O........... +0090 13 20 21 22 23 09 07 07 83 01 00 00 02 3a 80 18 . !"#........:.. +00a0 71 38 2d 40 58 2c 45 00 06 44 21 00 00 1e 01 1d q8-@X,E..D!..... +00b0 80 18 71 1c 16 20 58 2c 25 00 06 44 21 00 00 9e ..q.. X,%..D!... +00c0 01 1d 00 72 51 d0 1e 20 6e 28 55 00 06 44 21 00 ...rQ.. n(U..D!. +00d0 00 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 06 44 ...... .-..>...D +00e0 21 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 !............... +00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c ................ Retrying with write() before read()... Attempting simple 128 byte EDID read of /dev/i2c-6, WITH initial write() using i2c_smbus_read_byte_data() 128 bytes were read +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. Attempting simple 256 byte EDID read of /dev/i2c-6, WITH initial write() using i2c_smbus_read_byte_data() 256 bytes were read +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. +0080 02 03 1c f1 4f 90 05 04 03 02 07 16 01 14 1f 12 ....O........... +0090 13 20 21 22 23 09 07 07 83 01 00 00 02 3a 80 18 . !"#........:.. +00a0 71 38 2d 40 58 2c 45 00 06 44 21 00 00 1e 01 1d q8-@X,E..D!..... +00b0 80 18 71 1c 16 20 58 2c 25 00 06 44 21 00 00 9e ..q.. X,%..D!... +00c0 01 1d 00 72 51 d0 1e 20 6e 28 55 00 06 44 21 00 ...rQ.. n(U..D!. +00d0 00 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 06 44 ...... .-..>...D +00e0 21 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 !............... +00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c ................ Obtain and interpret EDID using normal i2c functions... Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, I2C_FUNC_SMBUS_WRITE_I2C_BLOCK Raw EDID: +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. EDID synopsis: Mfg id: DEL Model: DELL U2415 Product code: 41145 Serial number: 08DXD5AF0LLS Binary serial number: 810306643 (0x304c4c53) Manufacture year: 2015, Week: 42 Extra descriptor: Video input definition: 0xa5 - Digital Input (DisplayPort) Supported features: DPMS active-off Digital display type: RGB 4:4:4 + YCrCb 4:2:2 Standard sRGB color space: True White x,y: 0.313, 0.329 Red x,y: 0.660, 0.332 Green x,y: 0.302, 0.613 Blue x,y: 0.150, 0.063 Extension blocks: 1 EDID source: Attempt 1 to read and parse EDID succeeded Trying simple VCP read of feature 0x10... (try_single_getvcp_call ) Starting. vcp_feature_code=0x10. use_smbus=false Sending Get VCP Feature Command request packet: 51 82 01 10 ac Reading Get Feature Reply response packet read() returned 6e 88 02 00 10 00 00 64 00 5a 9a Attempt 1 to read feature succeeded. DDC communication succeeded EDIDs reported by X11 for connected xrandr outputs: Probing I2C devices using udev, susbsystem i2c-dev... Current time (local): 2021-06-12 22:41:22 BST Current time (UTC): 2021-06-12 21:41:22 Seconds since boot: 481086 Summary of udev I2C devices Subsystem Sysname Sysattr Name Devpath i2c-dev i2c-0 SMBus I801 adapter at 3040 /devices/pci0000:00/0000:00:1f.3/i2c-0/i2c-dev/i2c-0 i2c-dev i2c-1 i915 gmbus vga /devices/pci0000:00/0000:00:02.0/i2c-1/i2c-dev/i2c-1 i2c-dev i2c-2 i915 gmbus dpc /devices/pci0000:00/0000:00:02.0/i2c-2/i2c-dev/i2c-2 i2c-dev i2c-3 i915 gmbus dpb /devices/pci0000:00/0000:00:02.0/i2c-3/i2c-dev/i2c-3 i2c-dev i2c-4 i915 gmbus dpd /devices/pci0000:00/0000:00:02.0/i2c-4/i2c-dev/i2c-4 i2c-dev i2c-5 AUX C/port C /devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/i2c-dev/i2c-5 i2c-dev i2c-6 DPMST /devices/pci0000:00/0000:00:02.0/i2c-6/i2c-dev/i2c-6 Looking for udev devices with name attribute DPMST... Summary of udev DPMST devices... Subsystem Sysname Sysattr Name Devpath drm_dp_aux_dev drm_dp_aux1 DPMST /devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-3/drm_dp_aux1 drm_dp_aux_dev drm_dp_aux2 DPMST /devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-4/drm_dp_aux2 i2c i2c-6 DPMST /devices/pci0000:00/0000:00:02.0/i2c-6 i2c-dev i2c-6 DPMST /devices/pci0000:00/0000:00:02.0/i2c-6/i2c-dev/i2c-6 amdgpu configuration parameters: Examining configuration files... DKMS modules: Kernel I2C configuration settings: CONFIG_I2C_CHARDEV=m Kernel AMDGPU configuration settings: CONFIG_DRM_AMDGPU=m CONFIG_DRM_AMDGPU_SI=y CONFIG_DRM_AMDGPU_CIK=y CONFIG_DRM_AMDGPU_USERPTR=y # CONFIG_DRM_AMDGPU_GART_DEBUGFS is not set Examining system logs... Current timestamps: Current time (local): 2021-06-12 22:41:22 BST Current time (UTC): 2021-06-12 21:41:22 Seconds since boot: 481086 Scanning dmesg output for I2C related entries... Executing command: dmesg [ 0.282312] ACPI: Added _OSI(Linux-Dell-Video) [ 0.363698] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 32.662073] systemd[1]: Starting Load Kernel Module drm... [ 32.796291] systemd[1]: modprobe@drm.service: Succeeded. [ 32.796694] systemd[1]: Finished Load Kernel Module drm. [ 33.773783] at24 0-0050: 256 byte spd EEPROM, read-only [ 34.318106] fb0: switching to inteldrmfb from EFI VGA [ 34.319031] i915 0000:00:02.0: vgaarb: deactivate vga console [ 34.322654] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem [ 34.361397] [drm] Initialized i915 1.6.0 20200917 for 0000:00:02.0 on minor 0 [ 34.363414] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) [ 34.363663] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input9 [ 34.376652] i915 0000:00:02.0: [drm] Cannot find any crtc or sizes [ 34.419980] i915 0000:00:02.0: [drm] Cannot find any crtc or sizes [ 34.427203] i915 0000:00:02.0: [drm] Cannot find any crtc or sizes [ 34.439869] snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) [ 38.953989] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 [ 38.962508] fbcon: i915drmfb (fb0) is primary device [ 39.241600] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device [ 678.046112] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 [ 1627.112211] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 [ 2959.925213] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 [ 4825.896803] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 [18660.782464] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 [25088.489909] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 [53168.200267] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 [107239.903531] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 [123817.351957] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Scanning journalctl output for I2C related entries... Executing command: journalctl --no-pager --boot Jun 07 09:03:51 floyd kernel: ACPI: Added _OSI(Linux-Dell-Video) Jun 07 09:03:51 floyd kernel: pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] Jun 07 09:03:51 floyd systemd[1]: Starting Load Kernel Module drm... Jun 07 09:03:51 floyd systemd[1]: modprobe@drm.service: Succeeded. Jun 07 09:03:51 floyd systemd[1]: Finished Load Kernel Module drm. Jun 07 09:03:51 floyd systemd-modules-load[383]: Inserted module 'i2c_dev' Jun 07 09:03:52 floyd kernel: at24 0-0050: 256 byte spd EEPROM, read-only Jun 07 09:03:52 floyd kernel: fb0: switching to inteldrmfb from EFI VGA Jun 07 09:03:52 floyd kernel: i915 0000:00:02.0: vgaarb: deactivate vga console Jun 07 09:03:52 floyd kernel: i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem Jun 07 09:03:52 floyd kernel: [drm] Initialized i915 1.6.0 20200917 for 0000:00:02.0 on minor 0 Jun 07 09:03:52 floyd kernel: ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) Jun 07 09:03:52 floyd kernel: input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input9 Jun 07 09:03:52 floyd kernel: i915 0000:00:02.0: [drm] Cannot find any crtc or sizes Jun 07 09:03:52 floyd kernel: i915 0000:00:02.0: [drm] Cannot find any crtc or sizes Jun 07 09:03:52 floyd kernel: i915 0000:00:02.0: [drm] Cannot find any crtc or sizes Jun 07 09:03:52 floyd kernel: snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) Jun 07 09:03:53 floyd audit[872]: AVC apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe" pid=872 comm="apparmor_parser" Jun 07 09:03:53 floyd audit[872]: AVC apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe//kmod" pid=872 comm="apparmor_parser" Jun 07 09:03:57 floyd kernel: [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 07 09:03:57 floyd kernel: fbcon: i915drmfb (fb0) is primary device Jun 07 09:03:57 floyd kernel: i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device Jun 08 08:41:21 floyd kernel: [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 08 23:35:16 floyd kernel: [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 09 12:21:04 floyd kernel: [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 09 14:27:05 floyd kernel: [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 10 08:47:54 floyd kernel: [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 10 10:38:07 floyd kernel: [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 11 09:01:42 floyd kernel: [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 12 12:17:37 floyd kernel: [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 12 21:28:46 floyd kernel: [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 File not found: /var/log/Xorg.0.log Scanning file: /var/log/messages Limiting output to last 40 relevant lines... No lines found after filtering Scanning file: /var/log/kern.log Limiting output to last 20 relevant lines... Jun 8 23:35:16 floyd kernel: [ 1627.112211] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 9 12:21:04 floyd kernel: [ 2959.925213] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 9 14:27:05 floyd kernel: [ 4825.896803] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 10 08:47:54 floyd kernel: [18660.782464] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 10 10:38:07 floyd kernel: [25088.489909] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 11 09:01:42 floyd kernel: [53168.200267] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 12 12:17:37 floyd kernel: [107239.903531] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 12 21:28:45 floyd kernel: [123817.351957] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Scanning file: /var/log/daemon.log Limiting output to last 10 relevant lines... No lines found after filtering Scanning file: /var/log/syslog Limiting output to last 50 relevant lines... Jun 8 23:35:16 floyd kernel: [ 1627.112211] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 9 12:21:04 floyd kernel: [ 2959.925213] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 9 14:27:05 floyd kernel: [ 4825.896803] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 10 08:47:54 floyd kernel: [18660.782464] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 10 10:38:07 floyd kernel: [25088.489909] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 11 09:01:42 floyd kernel: [53168.200267] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 12 12:17:37 floyd kernel: [107239.903531] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Jun 12 21:28:45 floyd kernel: [123817.351957] [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* Sending link address failed with -5 Log Summary Log Checked Found === ======= ===== dmesg true true journalctl true true /var/log/daemon.log false false /var/log/kern.log true true /var/log/messages true true /var/log/syslog true true /var/log/Xorg.0.log true false Not built with libdrm support. Skipping DRM related checks Examining (4) /sys/class/drm... Found connector: card0-HDMI-A-1 /sys/class/drm/card0/card0-HDMI-A-1/enabled: disabled /sys/class/drm/card0/card0-HDMI-A-1/status: disconnected Found connector: card0-DP-4 /sys/class/drm/card0/card0-DP-4/enabled: disabled /sys/class/drm/card0/card0-DP-4/status: disconnected Found connector: card0-HDMI-A-2 /sys/class/drm/card0/card0-HDMI-A-2/enabled: disabled /sys/class/drm/card0/card0-HDMI-A-2/status: disconnected Found connector: card0-DP-3 /sys/class/drm/card0/card0-DP-3/enabled: enabled /sys/class/drm/card0/card0-DP-3/status: connected Raw EDID: +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. +0080 02 03 1c f1 4f 90 05 04 03 02 07 16 01 14 1f 12 ....O........... +0090 13 20 21 22 23 09 07 07 83 01 00 00 02 3a 80 18 . !"#........:.. +00a0 71 38 2d 40 58 2c 45 00 06 44 21 00 00 1e 01 1d q8-@X,E..D!..... +00b0 80 18 71 1c 16 20 58 2c 25 00 06 44 21 00 00 9e ..q.. X,%..D!... +00c0 01 1d 00 72 51 d0 1e 20 6e 28 55 00 06 44 21 00 ...rQ.. n(U..D!. +00d0 00 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 06 44 ...... .-..>...D +00e0 21 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 !............... +00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c ................ Multiple displays have same EDID ...202001E8 drm name, and bus number in device cross reference table may be incorrect Found connector: card0-DP-1 /sys/class/drm/card0/card0-DP-1/enabled: disabled /sys/class/drm/card0/card0-DP-1/status: disconnected Query file system for i2c nodes under /sys/class/drm/card*... drwxr-xr-x 4 root root 0 Jun 12 22:19 /sys/class/drm/card0/card0-DP-1/i2c-5 lrwxrwxrwx 1 root root 0 Jun 12 22:41 /sys/class/drm/card0/card0-HDMI-A-1/i2c-3 -> ../../../i2c-3 lrwxrwxrwx 1 root root 0 Jun 12 22:41 /sys/class/drm/card0/card0-HDMI-A-2/i2c-2 -> ../../../i2c-2 Device Identifier Cross Reference Report /dev/i2c busno: 5 EDID: ...202001E8 Mfg: DEL Model: DELL U2415 SN: 08DXD5AF0LLS Product number: 41145, binary SN: 810306643 XrandR output: (null) DRM connector: (null) UDEV name: AUX C/port C UDEV syspath: /devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/i2c-dev/i2c-5 UDEV busno: 5 sysfs drm path: /sys/class/drm/card0/card0-DP-3 sysfs drm I2C: (null) sysfs drm busno: Unknown ambiguous EDID: true WARNING: Multiple displays have same EDID. XrandR and DRM values may be incorrect /dev/i2c busno: 6 EDID: ...202001E8 Mfg: DEL Model: DELL U2415 SN: 08DXD5AF0LLS Product number: 41145, binary SN: 810306643 XrandR output: (null) DRM connector: (null) UDEV name: DPMST UDEV syspath: /devices/pci0000:00/0000:00:02.0/i2c-6/i2c-dev/i2c-6 UDEV busno: 6 sysfs drm path: (null) sysfs drm I2C: (null) sysfs drm busno: Unknown ambiguous EDID: true WARNING: Multiple displays have same EDID. XrandR and DRM values may be incorrect Video related contents of /etc/modprobe.d Dumping sysfs i2c entries Top level i2c related nodes... ls -l /sys/class/backlight:* ... ls: cannot access '/sys/class/backlight:*': No such file or directory ls -l /sys/dev/char/89:* ... lrwxrwxrwx 1 root root 0 Jun 12 22:41 /sys/dev/char/89:0 -> ../../devices/pci0000:00/0000:00:1f.3/i2c-0/i2c-dev/i2c-0 lrwxrwxrwx 1 root root 0 Jun 12 22:41 /sys/dev/char/89:1 -> ../../devices/pci0000:00/0000:00:02.0/i2c-1/i2c-dev/i2c-1 lrwxrwxrwx 1 root root 0 Jun 12 22:41 /sys/dev/char/89:2 -> ../../devices/pci0000:00/0000:00:02.0/i2c-2/i2c-dev/i2c-2 lrwxrwxrwx 1 root root 0 Jun 12 22:41 /sys/dev/char/89:3 -> ../../devices/pci0000:00/0000:00:02.0/i2c-3/i2c-dev/i2c-3 lrwxrwxrwx 1 root root 0 Jun 12 22:41 /sys/dev/char/89:4 -> ../../devices/pci0000:00/0000:00:02.0/i2c-4/i2c-dev/i2c-4 lrwxrwxrwx 1 root root 0 Jun 12 22:41 /sys/dev/char/89:5 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/i2c-dev/i2c-5 lrwxrwxrwx 1 root root 0 Jun 12 22:41 /sys/dev/char/89:6 -> ../../devices/pci0000:00/0000:00:02.0/i2c-6/i2c-dev/i2c-6 ls -l /sys/dev/char/239:* ... ls: cannot access '/sys/dev/char/239:*': No such file or directory ls -l /sys/bus/i2c/devices ... total 0 lrwxrwxrwx 1 root root 0 Jun 12 22:19 0-0050 -> ../../../devices/pci0000:00/0000:00:1f.3/i2c-0/0-0050 lrwxrwxrwx 1 root root 0 Jun 12 22:19 i2c-0 -> ../../../devices/pci0000:00/0000:00:1f.3/i2c-0 lrwxrwxrwx 1 root root 0 Jun 12 22:19 i2c-1 -> ../../../devices/pci0000:00/0000:00:02.0/i2c-1 lrwxrwxrwx 1 root root 0 Jun 12 22:41 i2c-2 -> ../../../devices/pci0000:00/0000:00:02.0/i2c-2 lrwxrwxrwx 1 root root 0 Jun 12 22:41 i2c-3 -> ../../../devices/pci0000:00/0000:00:02.0/i2c-3 lrwxrwxrwx 1 root root 0 Jun 12 22:41 i2c-4 -> ../../../devices/pci0000:00/0000:00:02.0/i2c-4 lrwxrwxrwx 1 root root 0 Jun 12 22:41 i2c-5 -> ../../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5 lrwxrwxrwx 1 root root 0 Jun 12 22:33 i2c-6 -> ../../../devices/pci0000:00/0000:00:02.0/i2c-6 ls -l /sys/bus/platform/devices ... total 0 lrwxrwxrwx 1 root root 0 Jun 12 22:41 ACPI000C:00 -> ../../../devices/platform/ACPI000C:00 lrwxrwxrwx 1 root root 0 Jun 12 22:41 alarmtimer.0.auto -> ../../../devices/pnp0/00:03/rtc/rtc0/alarmtimer.0.auto lrwxrwxrwx 1 root root 0 Jun 12 22:41 coretemp.0 -> ../../../devices/platform/coretemp.0 lrwxrwxrwx 1 root root 0 Jun 12 22:41 efi-framebuffer.0 -> ../../../devices/platform/efi-framebuffer.0 lrwxrwxrwx 1 root root 0 Jun 12 22:41 efivars.0 -> ../../../devices/platform/efivars.0 lrwxrwxrwx 1 root root 0 Jun 12 22:41 INT0800:00 -> ../../../devices/pci0000:00/0000:00:1f.0/INT0800:00 lrwxrwxrwx 1 root root 0 Jun 12 22:41 INT33A1:00 -> ../../../devices/platform/INT33A1:00 lrwxrwxrwx 1 root root 0 Jun 12 22:41 intel_rapl_msr.0 -> ../../../devices/platform/intel_rapl_msr.0 lrwxrwxrwx 1 root root 0 Jun 12 22:41 intel-spi -> ../../../devices/pci0000:00/0000:00:1f.0/intel-spi lrwxrwxrwx 1 root root 0 Jun 12 22:41 iTCO_wdt.1.auto -> ../../../devices/pci0000:00/0000:00:1f.0/iTCO_wdt.1.auto lrwxrwxrwx 1 root root 0 Jun 12 22:41 microcode -> ../../../devices/platform/microcode lrwxrwxrwx 1 root root 0 Jun 12 22:41 pcspkr -> ../../../devices/platform/pcspkr lrwxrwxrwx 1 root root 0 Jun 12 22:41 PNP0103:00 -> ../../../devices/pci0000:00/0000:00:1f.0/PNP0103:00 lrwxrwxrwx 1 root root 0 Jun 12 22:41 PNP0C0B:00 -> ../../../devices/platform/PNP0C0B:00 lrwxrwxrwx 1 root root 0 Jun 12 22:41 PNP0C0B:01 -> ../../../devices/platform/PNP0C0B:01 lrwxrwxrwx 1 root root 0 Jun 12 22:41 PNP0C0B:02 -> ../../../devices/platform/PNP0C0B:02 lrwxrwxrwx 1 root root 0 Jun 12 22:41 PNP0C0B:03 -> ../../../devices/platform/PNP0C0B:03 lrwxrwxrwx 1 root root 0 Jun 12 22:41 PNP0C0B:04 -> ../../../devices/platform/PNP0C0B:04 lrwxrwxrwx 1 root root 0 Jun 12 22:41 PNP0C0C:00 -> ../../../devices/platform/PNP0C0C:00 lrwxrwxrwx 1 root root 0 Jun 12 22:41 PNP0C0E:00 -> ../../../devices/platform/PNP0C0E:00 lrwxrwxrwx 1 root root 0 Jun 12 22:41 reg-dummy -> ../../../devices/platform/reg-dummy lrwxrwxrwx 1 root root 0 Jun 12 22:41 regulatory.0 -> ../../../devices/platform/regulatory.0 lrwxrwxrwx 1 root root 0 Jun 12 22:41 rtc-efi.0 -> ../../../devices/platform/rtc-efi.0 lrwxrwxrwx 1 root root 0 Jun 12 22:41 serial8250 -> ../../../devices/platform/serial8250 lrwxrwxrwx 1 root root 0 Jun 12 22:41 snd-soc-dummy -> ../../../devices/platform/snd-soc-dummy ls -l /sys/class/drm* ... /sys/class/drm: total 0 lrwxrwxrwx 1 root root 0 Jun 12 22:19 card0 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0 lrwxrwxrwx 1 root root 0 Jun 12 22:19 card0-DP-1 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 lrwxrwxrwx 1 root root 0 Jun 12 22:33 card0-DP-3 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-3 lrwxrwxrwx 1 root root 0 Jun 12 22:33 card0-DP-4 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-4 lrwxrwxrwx 1 root root 0 Jun 12 22:19 card0-HDMI-A-1 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1 lrwxrwxrwx 1 root root 0 Jun 12 22:19 card0-HDMI-A-2 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2 lrwxrwxrwx 1 root root 0 Jun 12 22:19 renderD128 -> ../../devices/pci0000:00/0000:00:02.0/drm/renderD128 -r--r--r-- 1 root root 4096 Jun 12 22:19 version /sys/class/drm_dp_aux_dev: total 0 lrwxrwxrwx 1 root root 0 Jun 12 22:19 drm_dp_aux0 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/drm_dp_aux0 lrwxrwxrwx 1 root root 0 Jun 12 22:41 drm_dp_aux1 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-3/drm_dp_aux1 lrwxrwxrwx 1 root root 0 Jun 12 22:41 drm_dp_aux2 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-4/drm_dp_aux2 ls -l /sys/class/i2c* ... /sys/class/i2c-adapter: total 0 lrwxrwxrwx 1 root root 0 Jun 12 22:19 i2c-0 -> ../../devices/pci0000:00/0000:00:1f.3/i2c-0 lrwxrwxrwx 1 root root 0 Jun 12 22:19 i2c-1 -> ../../devices/pci0000:00/0000:00:02.0/i2c-1 lrwxrwxrwx 1 root root 0 Jun 12 22:19 i2c-2 -> ../../devices/pci0000:00/0000:00:02.0/i2c-2 lrwxrwxrwx 1 root root 0 Jun 12 22:19 i2c-3 -> ../../devices/pci0000:00/0000:00:02.0/i2c-3 lrwxrwxrwx 1 root root 0 Jun 12 22:19 i2c-4 -> ../../devices/pci0000:00/0000:00:02.0/i2c-4 lrwxrwxrwx 1 root root 0 Jun 12 22:19 i2c-5 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5 lrwxrwxrwx 1 root root 0 Jun 12 22:41 i2c-6 -> ../../devices/pci0000:00/0000:00:02.0/i2c-6 /sys/class/i2c-dev: total 0 lrwxrwxrwx 1 root root 0 Jun 12 22:41 i2c-0 -> ../../devices/pci0000:00/0000:00:1f.3/i2c-0/i2c-dev/i2c-0 lrwxrwxrwx 1 root root 0 Jun 12 22:41 i2c-1 -> ../../devices/pci0000:00/0000:00:02.0/i2c-1/i2c-dev/i2c-1 lrwxrwxrwx 1 root root 0 Jun 12 22:41 i2c-2 -> ../../devices/pci0000:00/0000:00:02.0/i2c-2/i2c-dev/i2c-2 lrwxrwxrwx 1 root root 0 Jun 12 22:41 i2c-3 -> ../../devices/pci0000:00/0000:00:02.0/i2c-3/i2c-dev/i2c-3 lrwxrwxrwx 1 root root 0 Jun 12 22:41 i2c-4 -> ../../devices/pci0000:00/0000:00:02.0/i2c-4/i2c-dev/i2c-4 lrwxrwxrwx 1 root root 0 Jun 12 22:41 i2c-5 -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/i2c-dev/i2c-5 lrwxrwxrwx 1 root root 0 Jun 12 22:41 i2c-6 -> ../../devices/pci0000:00/0000:00:02.0/i2c-6/i2c-dev/i2c-6 *** Detail for /sys/bus/i2c/devices (Initial Version) *** Unexpected I2C device name: 0-0050 Examining (5) /sys/bus/i2c/devices/i2c-0 -> /sys/devices/pci0000:00/0000:00:1f.3/i2c-0 /sys/bus/i2c/devices/i2c-0/device -> /sys/devices/pci0000:00/0000:00:1f.3 /sys/bus/i2c/devices/i2c-0/name = SMBus I801 adapter at 3040 /sys/bus/i2c/devices/i2c-0/device/class = 0x0c0500 Examining (5) /sys/bus/i2c/devices/i2c-1 -> /sys/devices/pci0000:00/0000:00:02.0/i2c-1 /sys/bus/i2c/devices/i2c-1/device -> /sys/devices/pci0000:00/0000:00:02.0 /sys/bus/i2c/devices/i2c-1/name = i915 gmbus vga /sys/bus/i2c/devices/i2c-1/device/class = 0x030000 /sys/bus/i2c/devices/i2c-1/device/boot_vga = 1 /sys/bus/i2c/devices/i2c-1/device/driver -> i915 /sys/bus/i2c/devices/i2c-1/device/driver/module -> i915 /sys/bus/i2c/devices/i2c-1/device/enable = 1 /sys/bus/i2c/devices/i2c-1/device/modalias = pci:v00008086d00001616sv00008086sd00002057bc03sc00i00 /sys/bus/i2c/devices/i2c-1/device/vendor = 0x8086 /sys/bus/i2c/devices/i2c-1/device/device = 0x1616 /sys/bus/i2c/devices/i2c-1/device/subsystem_vendor = 0x8086 /sys/bus/i2c/devices/i2c-1/device/subsystem_device = 0x2057 /sys/bus/i2c/devices/i2c-1/i2c-dev : Found subdirectory = i2c-1 /sys/bus/i2c/devices/i2c-1/i2c-dev/i2c-1/dev = 89:1 /sys/bus/i2c/devices/i2c-1/i2c-dev/i2c-1/name = i915 gmbus vga /sys/bus/i2c/devices/i2c-1/i2c-dev/i2c-1/device -> /sys/devices/pci0000:00/0000:00:02.0/i2c-1 /sys/bus/i2c/devices/i2c-1/i2c-dev/i2c-1/subsystem -> /sys/class/i2c-dev Examining (5) /sys/bus/i2c/devices/i2c-2 -> /sys/devices/pci0000:00/0000:00:02.0/i2c-2 /sys/bus/i2c/devices/i2c-2/device -> /sys/devices/pci0000:00/0000:00:02.0 /sys/bus/i2c/devices/i2c-2/name = i915 gmbus dpc /sys/bus/i2c/devices/i2c-2/device/class = 0x030000 /sys/bus/i2c/devices/i2c-2/device/boot_vga = 1 /sys/bus/i2c/devices/i2c-2/device/driver -> i915 /sys/bus/i2c/devices/i2c-2/device/driver/module -> i915 /sys/bus/i2c/devices/i2c-2/device/enable = 1 /sys/bus/i2c/devices/i2c-2/device/modalias = pci:v00008086d00001616sv00008086sd00002057bc03sc00i00 /sys/bus/i2c/devices/i2c-2/device/vendor = 0x8086 /sys/bus/i2c/devices/i2c-2/device/device = 0x1616 /sys/bus/i2c/devices/i2c-2/device/subsystem_vendor = 0x8086 /sys/bus/i2c/devices/i2c-2/device/subsystem_device = 0x2057 /sys/bus/i2c/devices/i2c-2/i2c-dev : Found subdirectory = i2c-2 /sys/bus/i2c/devices/i2c-2/i2c-dev/i2c-2/dev = 89:2 /sys/bus/i2c/devices/i2c-2/i2c-dev/i2c-2/name = i915 gmbus dpc /sys/bus/i2c/devices/i2c-2/i2c-dev/i2c-2/device -> /sys/devices/pci0000:00/0000:00:02.0/i2c-2 /sys/bus/i2c/devices/i2c-2/i2c-dev/i2c-2/subsystem -> /sys/class/i2c-dev Examining (5) /sys/bus/i2c/devices/i2c-3 -> /sys/devices/pci0000:00/0000:00:02.0/i2c-3 /sys/bus/i2c/devices/i2c-3/device -> /sys/devices/pci0000:00/0000:00:02.0 /sys/bus/i2c/devices/i2c-3/name = i915 gmbus dpb /sys/bus/i2c/devices/i2c-3/device/class = 0x030000 /sys/bus/i2c/devices/i2c-3/device/boot_vga = 1 /sys/bus/i2c/devices/i2c-3/device/driver -> i915 /sys/bus/i2c/devices/i2c-3/device/driver/module -> i915 /sys/bus/i2c/devices/i2c-3/device/enable = 1 /sys/bus/i2c/devices/i2c-3/device/modalias = pci:v00008086d00001616sv00008086sd00002057bc03sc00i00 /sys/bus/i2c/devices/i2c-3/device/vendor = 0x8086 /sys/bus/i2c/devices/i2c-3/device/device = 0x1616 /sys/bus/i2c/devices/i2c-3/device/subsystem_vendor = 0x8086 /sys/bus/i2c/devices/i2c-3/device/subsystem_device = 0x2057 /sys/bus/i2c/devices/i2c-3/i2c-dev : Found subdirectory = i2c-3 /sys/bus/i2c/devices/i2c-3/i2c-dev/i2c-3/dev = 89:3 /sys/bus/i2c/devices/i2c-3/i2c-dev/i2c-3/name = i915 gmbus dpb /sys/bus/i2c/devices/i2c-3/i2c-dev/i2c-3/device -> /sys/devices/pci0000:00/0000:00:02.0/i2c-3 /sys/bus/i2c/devices/i2c-3/i2c-dev/i2c-3/subsystem -> /sys/class/i2c-dev Examining (5) /sys/bus/i2c/devices/i2c-4 -> /sys/devices/pci0000:00/0000:00:02.0/i2c-4 /sys/bus/i2c/devices/i2c-4/device -> /sys/devices/pci0000:00/0000:00:02.0 /sys/bus/i2c/devices/i2c-4/name = i915 gmbus dpd /sys/bus/i2c/devices/i2c-4/device/class = 0x030000 /sys/bus/i2c/devices/i2c-4/device/boot_vga = 1 /sys/bus/i2c/devices/i2c-4/device/driver -> i915 /sys/bus/i2c/devices/i2c-4/device/driver/module -> i915 /sys/bus/i2c/devices/i2c-4/device/enable = 1 /sys/bus/i2c/devices/i2c-4/device/modalias = pci:v00008086d00001616sv00008086sd00002057bc03sc00i00 /sys/bus/i2c/devices/i2c-4/device/vendor = 0x8086 /sys/bus/i2c/devices/i2c-4/device/device = 0x1616 /sys/bus/i2c/devices/i2c-4/device/subsystem_vendor = 0x8086 /sys/bus/i2c/devices/i2c-4/device/subsystem_device = 0x2057 /sys/bus/i2c/devices/i2c-4/i2c-dev : Found subdirectory = i2c-4 /sys/bus/i2c/devices/i2c-4/i2c-dev/i2c-4/dev = 89:4 /sys/bus/i2c/devices/i2c-4/i2c-dev/i2c-4/name = i915 gmbus dpd /sys/bus/i2c/devices/i2c-4/i2c-dev/i2c-4/device -> /sys/devices/pci0000:00/0000:00:02.0/i2c-4 /sys/bus/i2c/devices/i2c-4/i2c-dev/i2c-4/subsystem -> /sys/class/i2c-dev Examining (5) /sys/bus/i2c/devices/i2c-5 -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5 /sys/bus/i2c/devices/i2c-5/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 /sys/bus/i2c/devices/i2c-5/name = AUX C/port C /sys/bus/i2c/devices/i2c-5/device/class : Not Found /sys/bus/i2c/devices/i2c-5/device/class : Not found. (May be display port) /sys/bus/i2c/devices/i2c-5/subsystem -> /sys/bus/i2c /sys/bus/i2c/devices/i2c-5/device/ddc -> Invalid path /sys/bus/i2c/devices/i2c-5/device/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0 /sys/bus/i2c/devices/i2c-5/device/edid : Not Found /sys/bus/i2c/devices/i2c-5/device/status = disconnected /sys/bus/i2c/devices/i2c-5/device/subsystem -> /sys/class/drm /sys/bus/i2c/devices/i2c-5/device/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0 Skipping linked directory /sys/bus/i2c/devices/i2c-5/device : Found subdirectory = drm_dp_aux0 /sys/bus/i2c/devices/i2c-5/device/ddc/device/driver -> Invalid path /sys/bus/i2c/devices/i2c-5/device/enabled = disabled /sys/bus/i2c/devices/i2c-5/device/drm_dp_aux0/dev = 242:0 /sys/bus/i2c/devices/i2c-5/device/drm_dp_aux0/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 /sys/bus/i2c/devices/i2c-5/device/drm_dp_aux0/name = AUX C/port C /sys/bus/i2c/devices/i2c-5/device/drm_dp_aux0/device/subsystem -> /sys/class/drm Examining (5) /sys/bus/i2c/devices/i2c-6 -> /sys/devices/pci0000:00/0000:00:02.0/i2c-6 /sys/bus/i2c/devices/i2c-6/device -> /sys/devices/pci0000:00/0000:00:02.0 /sys/bus/i2c/devices/i2c-6/name = DPMST /sys/bus/i2c/devices/i2c-6/device/class = 0x030000 /sys/bus/i2c/devices/i2c-6/device/boot_vga = 1 /sys/bus/i2c/devices/i2c-6/device/driver -> i915 /sys/bus/i2c/devices/i2c-6/device/driver/module -> i915 /sys/bus/i2c/devices/i2c-6/device/enable = 1 /sys/bus/i2c/devices/i2c-6/device/modalias = pci:v00008086d00001616sv00008086sd00002057bc03sc00i00 /sys/bus/i2c/devices/i2c-6/device/vendor = 0x8086 /sys/bus/i2c/devices/i2c-6/device/device = 0x1616 /sys/bus/i2c/devices/i2c-6/device/subsystem_vendor = 0x8086 /sys/bus/i2c/devices/i2c-6/device/subsystem_device = 0x2057 /sys/bus/i2c/devices/i2c-6/i2c-dev : Found subdirectory = i2c-6 /sys/bus/i2c/devices/i2c-6/i2c-dev/i2c-6/dev = 89:6 /sys/bus/i2c/devices/i2c-6/i2c-dev/i2c-6/name = DPMST /sys/bus/i2c/devices/i2c-6/i2c-dev/i2c-6/device -> /sys/devices/pci0000:00/0000:00:02.0/i2c-6 /sys/bus/i2c/devices/i2c-6/i2c-dev/i2c-6/subsystem -> /sys/class/i2c-dev *** Detail for /sys/class/drm (Initial Version) *** Examining (6) /sys/class/drm/card0-DP-1 -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 /sys/class/drm/card0-DP-1/ddc -> Invalid path /sys/class/drm/card0-DP-1/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0 /sys/class/drm/card0-DP-1 : Found subdirectory = drm_dp_aux0 /sys/class/drm/card0-DP-1/edid : Not Found /sys/class/drm/card0-DP-1/enabled = disabled /sys/class/drm/card0-DP-1 : Found subdirectory = i2c-5 /sys/class/drm/card0-DP-1/status = disconnected /sys/class/drm/card0-DP-1/subsystem -> /sys/class/drm /sys/class/drm/card0-DP-1/drm_dp_aux0/dev = 242:0 /sys/class/drm/card0-DP-1/drm_dp_aux0/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 /sys/class/drm/card0-DP-1/drm_dp_aux0/name = AUX C/port C /sys/class/drm/card0-DP-1/i2c-5/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 /sys/class/drm/card0-DP-1/i2c-5/i2c-dev : Subdirectory /sys/class/drm/card0-DP-1/i2c-5/name = AUX C/port C /sys/class/drm/card0-DP-1/i2c-5/subsystem -> /sys/bus/i2c /sys/class/drm/card0-DP-1/i2c-5/i2c-dev/i2c-5 : Subdirectory /sys/class/drm/card0-DP-1/i2c-5/i2c-dev/i2c-5/dev = 89:5 /sys/class/drm/card0-DP-1/i2c-5/i2c-dev/i2c-5/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5 /sys/class/drm/card0-DP-1/i2c-5/i2c-dev/i2c-5/name = AUX C/port C /sys/class/drm/card0-DP-1/i2c-5/i2c-dev/i2c-5/subsystem -> /sys/class/i2c-dev Examining (6) /sys/class/drm/card0-DP-3 -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-3 /sys/class/drm/card0-DP-3/ddc -> Invalid path /sys/class/drm/card0-DP-3/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0 /sys/class/drm/card0-DP-3 : Found subdirectory = drm_dp_aux1 /sys/class/drm/card0-DP-3/edid : Found +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. +0080 02 03 1c f1 4f 90 05 04 03 02 07 16 01 14 1f 12 ....O........... +0090 13 20 21 22 23 09 07 07 83 01 00 00 02 3a 80 18 . !"#........:.. +00a0 71 38 2d 40 58 2c 45 00 06 44 21 00 00 1e 01 1d q8-@X,E..D!..... +00b0 80 18 71 1c 16 20 58 2c 25 00 06 44 21 00 00 9e ..q.. X,%..D!... +00c0 01 1d 00 72 51 d0 1e 20 6e 28 55 00 06 44 21 00 ...rQ.. n(U..D!. +00d0 00 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 06 44 ...... .-..>...D +00e0 21 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 !............... +00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c ................ /sys/class/drm/card0-DP-3/enabled = enabled /sys/class/drm/card0-DP-3 : No i2c- subdirectory found /sys/class/drm/card0-DP-3/status = connected /sys/class/drm/card0-DP-3/subsystem -> /sys/class/drm /sys/class/drm/card0-DP-3/drm_dp_aux1/dev = 242:1 /sys/class/drm/card0-DP-3/drm_dp_aux1/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-3 /sys/class/drm/card0-DP-3/drm_dp_aux1/name = DPMST Examining (6) /sys/class/drm/card0-DP-4 -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-4 /sys/class/drm/card0-DP-4/ddc -> Invalid path /sys/class/drm/card0-DP-4/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0 /sys/class/drm/card0-DP-4 : Found subdirectory = drm_dp_aux2 /sys/class/drm/card0-DP-4/edid : Not Found /sys/class/drm/card0-DP-4/enabled = disabled /sys/class/drm/card0-DP-4 : No i2c- subdirectory found /sys/class/drm/card0-DP-4/status = disconnected /sys/class/drm/card0-DP-4/subsystem -> /sys/class/drm /sys/class/drm/card0-DP-4/drm_dp_aux2/dev = 242:2 /sys/class/drm/card0-DP-4/drm_dp_aux2/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-4 /sys/class/drm/card0-DP-4/drm_dp_aux2/name = DPMST Examining (6) /sys/class/drm/card0-HDMI-A-1 -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1 /sys/class/drm/card0-HDMI-A-1/ddc -> /sys/devices/pci0000:00/0000:00:02.0/i2c-3 /sys/class/drm/card0-HDMI-A-1/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0 /sys/class/drm/card0-HDMI-A-1 : No drm_dp_aux subdirectory found /sys/class/drm/card0-HDMI-A-1/edid : Not Found /sys/class/drm/card0-HDMI-A-1/enabled = disabled /sys/class/drm/card0-HDMI-A-1 : Found subdirectory = i2c-3 /sys/class/drm/card0-HDMI-A-1/status = disconnected /sys/class/drm/card0-HDMI-A-1/subsystem -> /sys/class/drm /sys/class/drm/card0-HDMI-A-1/i2c-3/device -> /sys/devices/pci0000:00/0000:00:02.0 /sys/class/drm/card0-HDMI-A-1/i2c-3/i2c-dev : Subdirectory /sys/class/drm/card0-HDMI-A-1/i2c-3/name = i915 gmbus dpb /sys/class/drm/card0-HDMI-A-1/i2c-3/subsystem -> /sys/bus/i2c /sys/class/drm/card0-HDMI-A-1/i2c-3/i2c-dev/i2c-3 : Subdirectory /sys/class/drm/card0-HDMI-A-1/i2c-3/i2c-dev/i2c-3/dev = 89:3 /sys/class/drm/card0-HDMI-A-1/i2c-3/i2c-dev/i2c-3/device -> /sys/devices/pci0000:00/0000:00:02.0/i2c-3 /sys/class/drm/card0-HDMI-A-1/i2c-3/i2c-dev/i2c-3/name = i915 gmbus dpb /sys/class/drm/card0-HDMI-A-1/i2c-3/i2c-dev/i2c-3/subsystem -> /sys/class/i2c-dev Examining (6) /sys/class/drm/card0-HDMI-A-2 -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2 /sys/class/drm/card0-HDMI-A-2/ddc -> /sys/devices/pci0000:00/0000:00:02.0/i2c-2 /sys/class/drm/card0-HDMI-A-2/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0 /sys/class/drm/card0-HDMI-A-2 : No drm_dp_aux subdirectory found /sys/class/drm/card0-HDMI-A-2/edid : Not Found /sys/class/drm/card0-HDMI-A-2/enabled = disabled /sys/class/drm/card0-HDMI-A-2 : Found subdirectory = i2c-2 /sys/class/drm/card0-HDMI-A-2/status = disconnected /sys/class/drm/card0-HDMI-A-2/subsystem -> /sys/class/drm /sys/class/drm/card0-HDMI-A-2/i2c-2/device -> /sys/devices/pci0000:00/0000:00:02.0 /sys/class/drm/card0-HDMI-A-2/i2c-2/i2c-dev : Subdirectory /sys/class/drm/card0-HDMI-A-2/i2c-2/name = i915 gmbus dpc /sys/class/drm/card0-HDMI-A-2/i2c-2/subsystem -> /sys/bus/i2c /sys/class/drm/card0-HDMI-A-2/i2c-2/i2c-dev/i2c-2 : Subdirectory /sys/class/drm/card0-HDMI-A-2/i2c-2/i2c-dev/i2c-2/dev = 89:2 /sys/class/drm/card0-HDMI-A-2/i2c-2/i2c-dev/i2c-2/device -> /sys/devices/pci0000:00/0000:00:02.0/i2c-2 /sys/class/drm/card0-HDMI-A-2/i2c-2/i2c-dev/i2c-2/name = i915 gmbus dpc /sys/class/drm/card0-HDMI-A-2/i2c-2/i2c-dev/i2c-2/subsystem -> /sys/class/i2c-dev *** Reporting video devices *** Examining (7) /sys/bus/pci/devices/0000:00:02.0 -> /sys/devices/pci0000:00/0000:00:02.0 /sys/bus/pci/devices/0000:00:02.0/device -> /sys/devices/pci0000:00/0000:00:02.0/device /sys/bus/pci/devices/0000:00:02.0/class = 0x030000 /sys/bus/pci/devices/0000:00:02.0/boot_vga = 1 /sys/bus/pci/devices/0000:00:02.0/driver -> i915 /sys/bus/pci/devices/0000:00:02.0/enable = 1 /sys/bus/pci/devices/0000:00:02.0/modalias = pci:v00008086d00001616sv00008086sd00002057bc03sc00i00 /sys/bus/pci/devices/0000:00:02.0/vendor = 0x8086 /sys/bus/pci/devices/0000:00:02.0/device = 0x1616 /sys/bus/pci/devices/0000:00:02.0/subsystem_vendor = 0x8086 /sys/bus/pci/devices/0000:00:02.0/subsystem_device = 0x2057 /sys/bus/pci/devices/0000:00:02.0/subsystem -> /sys/bus/pci /sys/bus/pci/devices/0000:00:02.0 : Found subdirectory = drm /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/ddc -> Invalid path /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/edid : Not Found /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/enabled = disabled /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/status = disconnected /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/subsystem -> /sys/class/drm /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1 : Found subdirectory = drm_dp_aux0 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/drm_dp_aux0/device-> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/drm_dp_aux0/dev= 242:0 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/drm_dp_aux0/name= AUX C/port C /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/drm_dp_aux0/subsystem-> /sys/class/drm_dp_aux_dev /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1 : Found subdirectory = i2c-5 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/i2c-dev : Found subdirectory = i2c-5 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/i2c-dev/i2c-5/device-> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/i2c-dev/i2c-5/dev= 89:5 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/i2c-dev/i2c-5/name= AUX C/port C /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/i2c-dev/i2c-5/subsystem-> /sys/class/i2c-dev /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/name = AUX C/port C /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/subsystem-> /sys/bus/i2c /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-3/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-3/ddc -> Invalid path /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-3/edid : Found +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. +0080 02 03 1c f1 4f 90 05 04 03 02 07 16 01 14 1f 12 ....O........... +0090 13 20 21 22 23 09 07 07 83 01 00 00 02 3a 80 18 . !"#........:.. +00a0 71 38 2d 40 58 2c 45 00 06 44 21 00 00 1e 01 1d q8-@X,E..D!..... +00b0 80 18 71 1c 16 20 58 2c 25 00 06 44 21 00 00 9e ..q.. X,%..D!... +00c0 01 1d 00 72 51 d0 1e 20 6e 28 55 00 06 44 21 00 ...rQ.. n(U..D!. +00d0 00 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 06 44 ...... .-..>...D +00e0 21 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 !............... +00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c ................ /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-3/enabled = enabled /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-3/status = connected /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-3/subsystem -> /sys/class/drm /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-3 : Found subdirectory = drm_dp_aux1 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-3/drm_dp_aux1/device-> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-3 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-3/drm_dp_aux1/dev= 242:1 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-3/drm_dp_aux1/name= DPMST /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-3/drm_dp_aux1/subsystem-> /sys/class/drm_dp_aux_dev /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-3 : No i2c- subdirectory found /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-4/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-4/ddc -> Invalid path /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-4/edid : Not Found /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-4/enabled = disabled /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-4/status = disconnected /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-4/subsystem -> /sys/class/drm /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-4 : Found subdirectory = drm_dp_aux2 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-4/drm_dp_aux2/device-> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-4 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-4/drm_dp_aux2/dev= 242:2 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-4/drm_dp_aux2/name= DPMST /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-4/drm_dp_aux2/subsystem-> /sys/class/drm_dp_aux_dev /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-DP-4 : No i2c- subdirectory found /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1/ddc -> /sys/devices/pci0000:00/0000:00:02.0/i2c-3 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1/edid : Not Found /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1/enabled = disabled /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1/status = disconnected /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1/subsystem -> /sys/class/drm /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1 : No drm_dp_aux subdirectory found /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1 : Found subdirectory = i2c-3 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1/i2c-3/i2c-dev: Found subdirectory = i2c-3 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1/i2c-3/i2c-dev/i2c-3/device-> /sys/devices/pci0000:00/0000:00:02.0/i2c-3 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1/i2c-3/i2c-dev/i2c-3/dev= 89:3 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1/i2c-3/i2c-dev/i2c-3/name= i915 gmbus dpb /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1/i2c-3/i2c-dev/i2c-3/subsystem-> /sys/class/i2c-dev /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1/i2c-3/device-> /sys/devices/pci0000:00/0000:00:02.0 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1/i2c-3/name = i915 gmbus dpb /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-1/i2c-3/subsystem-> /sys/bus/i2c /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2/device -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2/ddc -> /sys/devices/pci0000:00/0000:00:02.0/i2c-2 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2/edid : Not Found /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2/enabled = disabled /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2/status = disconnected /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2/subsystem -> /sys/class/drm /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2 : No drm_dp_aux subdirectory found /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2 : Found subdirectory = i2c-2 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2/i2c-2/i2c-dev: Found subdirectory = i2c-2 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2/i2c-2/i2c-dev/i2c-2/device-> /sys/devices/pci0000:00/0000:00:02.0/i2c-2 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2/i2c-2/i2c-dev/i2c-2/dev= 89:2 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2/i2c-2/i2c-dev/i2c-2/name= i915 gmbus dpc /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2/i2c-2/i2c-dev/i2c-2/subsystem-> /sys/class/i2c-dev /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2/i2c-2/device-> /sys/devices/pci0000:00/0000:00:02.0 /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2/i2c-2/name = i915 gmbus dpc /sys/bus/pci/devices/0000:00:02.0/drm/card0/card0-HDMI-A-2/i2c-2/subsystem-> /sys/bus/i2c /sys/bus/pci/devices/0000:00:02.0/i2c-1/device -> /sys/devices/pci0000:00/0000:00:02.0 /sys/bus/pci/devices/0000:00:02.0/i2c-1/name = i915 gmbus vga /sys/bus/pci/devices/0000:00:02.0/i2c-1/subsystem -> /sys/bus/i2c /sys/bus/pci/devices/0000:00:02.0/i2c-1 : Found subdirectory = i2c-dev /sys/bus/pci/devices/0000:00:02.0/i2c-1/i2c-dev : Found subdirectory = i2c-1 /sys/bus/pci/devices/0000:00:02.0/i2c-1/i2c-dev/i2c-1/device -> /sys/devices/pci0000:00/0000:00:02.0/i2c-1 /sys/bus/pci/devices/0000:00:02.0/i2c-1/i2c-dev/i2c-1/dev = 89:1 /sys/bus/pci/devices/0000:00:02.0/i2c-1/i2c-dev/i2c-1/name = i915 gmbus vga /sys/bus/pci/devices/0000:00:02.0/i2c-1/i2c-dev/i2c-1/subsystem -> /sys/class/i2c-dev /sys/bus/pci/devices/0000:00:02.0/i2c-2/device -> /sys/devices/pci0000:00/0000:00:02.0 /sys/bus/pci/devices/0000:00:02.0/i2c-2/name = i915 gmbus dpc /sys/bus/pci/devices/0000:00:02.0/i2c-2/subsystem -> /sys/bus/i2c /sys/bus/pci/devices/0000:00:02.0/i2c-2 : Found subdirectory = i2c-dev /sys/bus/pci/devices/0000:00:02.0/i2c-2/i2c-dev : Found subdirectory = i2c-2 /sys/bus/pci/devices/0000:00:02.0/i2c-2/i2c-dev/i2c-2/device -> /sys/devices/pci0000:00/0000:00:02.0/i2c-2 /sys/bus/pci/devices/0000:00:02.0/i2c-2/i2c-dev/i2c-2/dev = 89:2 /sys/bus/pci/devices/0000:00:02.0/i2c-2/i2c-dev/i2c-2/name = i915 gmbus dpc /sys/bus/pci/devices/0000:00:02.0/i2c-2/i2c-dev/i2c-2/subsystem -> /sys/class/i2c-dev /sys/bus/pci/devices/0000:00:02.0/i2c-3/device -> /sys/devices/pci0000:00/0000:00:02.0 /sys/bus/pci/devices/0000:00:02.0/i2c-3/name = i915 gmbus dpb /sys/bus/pci/devices/0000:00:02.0/i2c-3/subsystem -> /sys/bus/i2c /sys/bus/pci/devices/0000:00:02.0/i2c-3 : Found subdirectory = i2c-dev /sys/bus/pci/devices/0000:00:02.0/i2c-3/i2c-dev : Found subdirectory = i2c-3 /sys/bus/pci/devices/0000:00:02.0/i2c-3/i2c-dev/i2c-3/device -> /sys/devices/pci0000:00/0000:00:02.0/i2c-3 /sys/bus/pci/devices/0000:00:02.0/i2c-3/i2c-dev/i2c-3/dev = 89:3 /sys/bus/pci/devices/0000:00:02.0/i2c-3/i2c-dev/i2c-3/name = i915 gmbus dpb /sys/bus/pci/devices/0000:00:02.0/i2c-3/i2c-dev/i2c-3/subsystem -> /sys/class/i2c-dev /sys/bus/pci/devices/0000:00:02.0/i2c-4/device -> /sys/devices/pci0000:00/0000:00:02.0 /sys/bus/pci/devices/0000:00:02.0/i2c-4/name = i915 gmbus dpd /sys/bus/pci/devices/0000:00:02.0/i2c-4/subsystem -> /sys/bus/i2c /sys/bus/pci/devices/0000:00:02.0/i2c-4 : Found subdirectory = i2c-dev /sys/bus/pci/devices/0000:00:02.0/i2c-4/i2c-dev : Found subdirectory = i2c-4 /sys/bus/pci/devices/0000:00:02.0/i2c-4/i2c-dev/i2c-4/device -> /sys/devices/pci0000:00/0000:00:02.0/i2c-4 /sys/bus/pci/devices/0000:00:02.0/i2c-4/i2c-dev/i2c-4/dev = 89:4 /sys/bus/pci/devices/0000:00:02.0/i2c-4/i2c-dev/i2c-4/name = i915 gmbus dpd /sys/bus/pci/devices/0000:00:02.0/i2c-4/i2c-dev/i2c-4/subsystem -> /sys/class/i2c-dev /sys/bus/pci/devices/0000:00:02.0/i2c-6/device -> /sys/devices/pci0000:00/0000:00:02.0 /sys/bus/pci/devices/0000:00:02.0/i2c-6/name = DPMST /sys/bus/pci/devices/0000:00:02.0/i2c-6/subsystem -> /sys/bus/i2c /sys/bus/pci/devices/0000:00:02.0/i2c-6 : Found subdirectory = i2c-dev /sys/bus/pci/devices/0000:00:02.0/i2c-6/i2c-dev : Found subdirectory = i2c-6 /sys/bus/pci/devices/0000:00:02.0/i2c-6/i2c-dev/i2c-6/device -> /sys/devices/pci0000:00/0000:00:02.0/i2c-6 /sys/bus/pci/devices/0000:00:02.0/i2c-6/i2c-dev/i2c-6/dev = 89:6 /sys/bus/pci/devices/0000:00:02.0/i2c-6/i2c-dev/i2c-6/name = DPMST /sys/bus/pci/devices/0000:00:02.0/i2c-6/i2c-dev/i2c-6/subsystem -> /sys/class/i2c-dev Examining (B) /sys/bus/i2c/devices for MST, duplicate EDIDs: Ignoring (A) /sys/bus/i2c/devices/0-0050 Examining (A) /sys/bus/i2c/devices/i2c-0... /sys/bus/i2c/devices/i2c-0 -> /sys/devices/pci0000:00/0000:00:1f.3/i2c-0 /sys/devices/pci0000:00/0000:00:1f.3/i2c-0/name = SMBus I801 adapter at 3040 /sys/devices/pci0000:00/0000:00:1f.3/i2c-0/i2c-dev/i2c-0/dev = 89:0 /sys/devices/pci0000:00/0000:00:1f.3/i2c-0/i2c-dev/i2c-0/name = SMBus I801 adapter at 3040 /sys/devices/pci0000:00/0000:00:1f.3/i2c-0/.. -> /sys/devices/pci0000:00/0000:00:1f.3 /sys/devices/pci0000:00/0000:00:1f.3 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:1f.3/class = 0x0c0500 Extended information for /sys/bus/i2c/devices/i2c-0... PCI device path: /sys/devices/pci0000:00/0000:00:1f.3/i2c-0 name: SMBus I801 adapter at 3040 i2c-dev/i2c-0/dev: 89:0 i2c-dev/i2c-0/name: SMBus I801 adapter at 3040 Connector: (null) Driver: (null) Not a DisplayPort connection Examining (A) /sys/bus/i2c/devices/i2c-1... /sys/bus/i2c/devices/i2c-1 -> /sys/devices/pci0000:00/0000:00:02.0/i2c-1 /sys/devices/pci0000:00/0000:00:02.0/i2c-1/name = i915 gmbus vga /sys/devices/pci0000:00/0000:00:02.0/i2c-1/i2c-dev/i2c-1/dev = 89:1 /sys/devices/pci0000:00/0000:00:02.0/i2c-1/i2c-dev/i2c-1/name = i915 gmbus vga /sys/devices/pci0000:00/0000:00:02.0/i2c-1/.. -> /sys/devices/pci0000:00/0000:00:02.0 /sys/devices/pci0000:00/0000:00:02.0 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:02.0/class = 0x030000 /sys/devices/pci0000:00/0000:00:02.0/boot_vga = 1 /sys/devices/pci0000:00/0000:00:02.0/vendor = 0x8086 /sys/devices/pci0000:00/0000:00:02.0/device = 0x1616 /sys/devices/pci0000:00/0000:00:02.0/driver -> /sys/bus/pci/drivers/i915 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 : Found subdirectory = drm_dp_aux0 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-3 : Found subdirectory = drm_dp_aux1 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-4 : Found subdirectory = drm_dp_aux2 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1/ddc/i2c-dev: No i2c-1 subdirectory found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2/ddc/i2c-dev: No i2c-1 subdirectory found Extended information for /sys/bus/i2c/devices/i2c-1... PCI device path: /sys/devices/pci0000:00/0000:00:02.0/i2c-1 name: i915 gmbus vga i2c-dev/i2c-1/dev: 89:1 i2c-dev/i2c-1/name: i915 gmbus vga Connector: (null) Driver: i915 Not a DisplayPort connection Examining (A) /sys/bus/i2c/devices/i2c-2... /sys/bus/i2c/devices/i2c-2 -> /sys/devices/pci0000:00/0000:00:02.0/i2c-2 /sys/devices/pci0000:00/0000:00:02.0/i2c-2/name = i915 gmbus dpc /sys/devices/pci0000:00/0000:00:02.0/i2c-2/i2c-dev/i2c-2/dev = 89:2 /sys/devices/pci0000:00/0000:00:02.0/i2c-2/i2c-dev/i2c-2/name = i915 gmbus dpc /sys/devices/pci0000:00/0000:00:02.0/i2c-2/.. -> /sys/devices/pci0000:00/0000:00:02.0 /sys/devices/pci0000:00/0000:00:02.0 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:02.0/class = 0x030000 /sys/devices/pci0000:00/0000:00:02.0/boot_vga = 1 /sys/devices/pci0000:00/0000:00:02.0/vendor = 0x8086 /sys/devices/pci0000:00/0000:00:02.0/device = 0x1616 /sys/devices/pci0000:00/0000:00:02.0/driver -> /sys/bus/pci/drivers/i915 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 : Found subdirectory = drm_dp_aux0 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-3 : Found subdirectory = drm_dp_aux1 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-4 : Found subdirectory = drm_dp_aux2 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1/ddc/i2c-dev: No i2c-2 subdirectory found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2/ddc/i2c-dev: Found subdirectory = i2c-2 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2/ddc/name= i915 gmbus dpc /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2/ddc/i2c-dev/i2c-2/dev= 89:2 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2/ddc/i2c-dev/i2c-2/name= i915 gmbus dpc /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2/edid : Not Found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2/enabled = disabled /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2/status = disconnected Extended information for /sys/bus/i2c/devices/i2c-2... PCI device path: /sys/devices/pci0000:00/0000:00:02.0/i2c-2 name: i915 gmbus dpc i2c-dev/i2c-2/dev: 89:2 i2c-dev/i2c-2/name: i915 gmbus dpc Connector: card0-HDMI-A-2 Driver: i915 Not a DisplayPort connection Examining (A) /sys/bus/i2c/devices/i2c-3... /sys/bus/i2c/devices/i2c-3 -> /sys/devices/pci0000:00/0000:00:02.0/i2c-3 /sys/devices/pci0000:00/0000:00:02.0/i2c-3/name = i915 gmbus dpb /sys/devices/pci0000:00/0000:00:02.0/i2c-3/i2c-dev/i2c-3/dev = 89:3 /sys/devices/pci0000:00/0000:00:02.0/i2c-3/i2c-dev/i2c-3/name = i915 gmbus dpb /sys/devices/pci0000:00/0000:00:02.0/i2c-3/.. -> /sys/devices/pci0000:00/0000:00:02.0 /sys/devices/pci0000:00/0000:00:02.0 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:02.0/class = 0x030000 /sys/devices/pci0000:00/0000:00:02.0/boot_vga = 1 /sys/devices/pci0000:00/0000:00:02.0/vendor = 0x8086 /sys/devices/pci0000:00/0000:00:02.0/device = 0x1616 /sys/devices/pci0000:00/0000:00:02.0/driver -> /sys/bus/pci/drivers/i915 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 : Found subdirectory = drm_dp_aux0 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-3 : Found subdirectory = drm_dp_aux1 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-4 : Found subdirectory = drm_dp_aux2 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1/ddc/i2c-dev: Found subdirectory = i2c-3 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1/ddc/name= i915 gmbus dpb /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1/ddc/i2c-dev/i2c-3/dev= 89:3 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1/ddc/i2c-dev/i2c-3/name= i915 gmbus dpb /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1/edid : Not Found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1/enabled = disabled /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1/status = disconnected Extended information for /sys/bus/i2c/devices/i2c-3... PCI device path: /sys/devices/pci0000:00/0000:00:02.0/i2c-3 name: i915 gmbus dpb i2c-dev/i2c-3/dev: 89:3 i2c-dev/i2c-3/name: i915 gmbus dpb Connector: card0-HDMI-A-1 Driver: i915 Not a DisplayPort connection Examining (A) /sys/bus/i2c/devices/i2c-4... /sys/bus/i2c/devices/i2c-4 -> /sys/devices/pci0000:00/0000:00:02.0/i2c-4 /sys/devices/pci0000:00/0000:00:02.0/i2c-4/name = i915 gmbus dpd /sys/devices/pci0000:00/0000:00:02.0/i2c-4/i2c-dev/i2c-4/dev = 89:4 /sys/devices/pci0000:00/0000:00:02.0/i2c-4/i2c-dev/i2c-4/name = i915 gmbus dpd /sys/devices/pci0000:00/0000:00:02.0/i2c-4/.. -> /sys/devices/pci0000:00/0000:00:02.0 /sys/devices/pci0000:00/0000:00:02.0 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:02.0/class = 0x030000 /sys/devices/pci0000:00/0000:00:02.0/boot_vga = 1 /sys/devices/pci0000:00/0000:00:02.0/vendor = 0x8086 /sys/devices/pci0000:00/0000:00:02.0/device = 0x1616 /sys/devices/pci0000:00/0000:00:02.0/driver -> /sys/bus/pci/drivers/i915 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 : Found subdirectory = drm_dp_aux0 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-3 : Found subdirectory = drm_dp_aux1 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-4 : Found subdirectory = drm_dp_aux2 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1/ddc/i2c-dev: No i2c-4 subdirectory found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2/ddc/i2c-dev: No i2c-4 subdirectory found Extended information for /sys/bus/i2c/devices/i2c-4... PCI device path: /sys/devices/pci0000:00/0000:00:02.0/i2c-4 name: i915 gmbus dpd i2c-dev/i2c-4/dev: 89:4 i2c-dev/i2c-4/name: i915 gmbus dpd Connector: (null) Driver: i915 Not a DisplayPort connection Examining (A) /sys/bus/i2c/devices/i2c-5... /sys/bus/i2c/devices/i2c-5 -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/name = AUX C/port C /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/i2c-dev/i2c-5/dev= 89:5 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/i2c-dev/i2c-5/name= AUX C/port C /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5/.. -> /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 : Found subdirectory = drm_dp_aux0 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/ddc -> Invalid path /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 : Found subdirectory = drm_dp_aux0 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/drm_dp_aux0/name= AUX C/port C /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/drm_dp_aux0/dev= 242:0 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/edid : Not Found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/enabled = disabled /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/status = disconnected /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/../../../driver-> /sys/bus/pci/drivers/i915 Extended information for /sys/bus/i2c/devices/i2c-5... PCI device path: /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-5 name: AUX C/port C i2c-dev/i2c-5/dev: 89:5 i2c-dev/i2c-5/name: AUX C/port C Connector: (null) Driver: i915 DisplayPort only attributes: ddc path: (null) ddc name: (null) ddc i2c-dev/(null)/dev: (null) ddc i2c-dev/(null)/name: (null) DP Aux channel dev: 242:0 DP Aux channel name: AUX C/port C Examining (A) /sys/bus/i2c/devices/i2c-6... /sys/bus/i2c/devices/i2c-6 -> /sys/devices/pci0000:00/0000:00:02.0/i2c-6 /sys/devices/pci0000:00/0000:00:02.0/i2c-6/name = DPMST /sys/devices/pci0000:00/0000:00:02.0/i2c-6/i2c-dev/i2c-6/dev = 89:6 /sys/devices/pci0000:00/0000:00:02.0/i2c-6/i2c-dev/i2c-6/name = DPMST /sys/devices/pci0000:00/0000:00:02.0/i2c-6/.. -> /sys/devices/pci0000:00/0000:00:02.0 /sys/devices/pci0000:00/0000:00:02.0 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:02.0/class = 0x030000 /sys/devices/pci0000:00/0000:00:02.0/boot_vga = 1 /sys/devices/pci0000:00/0000:00:02.0/vendor = 0x8086 /sys/devices/pci0000:00/0000:00:02.0/device = 0x1616 /sys/devices/pci0000:00/0000:00:02.0/driver -> /sys/bus/pci/drivers/i915 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1 : Found subdirectory = drm_dp_aux0 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-3 : Found subdirectory = drm_dp_aux1 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-4 : Found subdirectory = drm_dp_aux2 /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1/ddc/i2c-dev: No i2c-6 subdirectory found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2 : No drm_dp_aux subdirectory found /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2/ddc/i2c-dev: No i2c-6 subdirectory found Extended information for /sys/bus/i2c/devices/i2c-6... PCI device path: /sys/devices/pci0000:00/0000:00:02.0/i2c-6 name: DPMST i2c-dev/i2c-6/dev: 89:6 i2c-dev/i2c-6/name: DPMST Connector: (null) Driver: i915 Not a DisplayPort connection *** Calling get_sysfs_drm_displays() from ddc_watch.c... *** Examining (W) /sys/class/drm... Found connector: card0-HDMI-A-1 Display: card0-HDMI-A-1, status=disconnected Found connector: card0-DP-4 Display: card0-DP-4, status=disconnected Found connector: card0-HDMI-A-2 Display: card0-HDMI-A-2, status=disconnected Found connector: card0-DP-3 Display: card0-DP-3, status=connected /sys/class/drm/card0/card0-DP-3/edid: +0 +4 +8 +c 0 4 8 c +0000 00 ff ff ff ff ff ff 00 10 ac b9 a0 53 4c 4c 30 ............SLL0 +0010 2a 19 01 04 a5 34 20 78 3a 04 95 a9 55 4d 9d 26 *....4 x:...UM.& +0020 10 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 d1 00 .PT.K.qO...@.... +0030 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 ......(<..p.#@0 +0040 36 00 06 44 21 00 00 1e 00 00 00 ff 00 30 38 44 6..D!........08D +0050 58 44 35 41 46 30 4c 4c 53 0a 00 00 00 fc 00 44 XD5AF0LLS......D +0060 45 4c 4c 20 55 32 34 31 35 0a 20 20 00 00 00 fd ELL U2415. .... +0070 00 31 3d 1e 53 11 00 0a 20 20 20 20 20 20 01 e8 .1=.S... .. +0080 02 03 1c f1 4f 90 05 04 03 02 07 16 01 14 1f 12 ....O........... +0090 13 20 21 22 23 09 07 07 83 01 00 00 02 3a 80 18 . !"#........:.. +00a0 71 38 2d 40 58 2c 45 00 06 44 21 00 00 1e 01 1d q8-@X,E..D!..... +00b0 80 18 71 1c 16 20 58 2c 25 00 06 44 21 00 00 9e ..q.. X,%..D!... +00c0 01 1d 00 72 51 d0 1e 20 6e 28 55 00 06 44 21 00 ...rQ.. n(U..D!. +00d0 00 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 06 44 ...... .-..>...D +00e0 21 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 !............... +00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0c ................ Found connector: card0-DP-1 Display: card0-DP-1, status=disconnected (get_sysfs_drm_displays ) Connected displays: card0-DP-3 Env_Accumulator: architecture: x86_64 distributor_id Debian Drivers detected: i915 /dev/i2c device numbers: 0 1 2 3 4 5 6 sysfs_i2c_devices_exist: true /sys/bus/i2c device numbers: 0 1 2 3 4 5 6 dev_i2c_devices_required: true module_i2c_dev_needed: true module_i2c_dev_builtin: false loadable_i2c_dev_exists: false i2c_dev_loaded_or_builtin: true group_i2c_checked: true group_i2c_exists: true dev_i2c_common_group_name: i2c all_dev_i2c_has_group_i2c: true any_dev_i2c_has_group_i2c: true all_dev_i2c_is_group_rw: true any_dev_i2c_is_group_rw: true cur_uname: root cur_uid: 0 cur_user_in_group_i2c: false cur_user_any_devi2c_rw: true cur_user_all_devi2c_rw: true Configuration suggestions: Current user has RW access to all /dev/i2c-N devices. Skipping further group and permission checks.