Announcements and updates

[archseer]

Subscribe to this issue to be notified of announcements, changelogs and manual upgrade notices.

(For update announcements only)

[archseer]

5.5.6 was released!

Build system

We now have a build system for packages for Arch, Debian and Fedora which should make it easier for us to release new kernel versions. The pkg directory also contains the packaging files that you can use to rebuild the kernel on your own.

Automated repositories

We have set up https://pkg.surfacelinux.com/ as the official source for patched kernel packages and other utilities. If you were using the package repositories before, please update your local setup.

• The package repositories are now the recommended way to install the kernel. That way you will automatically receive future updates.

• We are officially supporting Arch, Debian and Fedora builds.

• The config files are moved to the device-specific/known issues wiki pages and are no longer automatically copied over.

• The setup.sh script now basically does nothing.

As a result of these changes, installation is now as easy as adding the package repository, installing a bunch of packages and following the guide to add any necessary config files for your device.

New IPTS driver (pen or single-touch)

5.5 patchsets also feature a new IPTS driver which works without the Intel GuC submission APIs that were removed upstream. The caveat is that it supports either pen OR single-touch. If you want to continue using multi-touch, either use the LTS release (4.19) or please manually install the latest 5.3 release.

By default pen support is enabled. If you want to switch to single-touch create a file under /etc/modprobe.d/ipts.conf:

options ipts singletouch=y

Note: The new driver works on gen7 (SL3 Intel & SP7) as well!

[kitakar5525]

mwifiex: power_save now disallowed by default to improve connection stability

v5.5: fedora-31-5.5.9-3, fedora-30-5.5.9-3, debian-5.5.9-2, arch-5.5.9-2
v5.6: Since the first release of the v5.6 kernel
v4.19: debian_lts-4.19.110, arch_lts-4.19.110

You may have already noticed, since commit linux-surface/kernel@7182ea0b4b5e9a, power_save is disallowed by default. There have been many reports that configuring powr_save from userspace tools (e.g. via NetworkManager config file or udev rule) is not so solid. Now, no need to configure it manually.

If you want to try to allow power_save, pass allow_ps_mode=Y parameter to the mwifiex driver. This only allows it to be enabled. To actually enable it, run sudo iw dev $devname set power_save on or by any other tools and check if it's actually enabled by sudo cat /sys/kernel/debug/mwifiex/mlan0/debug | grep "ps_"

[kitakar5525]

"v4.19: IPTS (touchscreen driver) stops working (SP4 and SB1)" has been hopefully fixed

v4.19: debian_lts-4.19.123-1, arch_lts-4.19.123-1

Since commit linux-surface/kernel@8b45a31eb5977d, touch input on all kinds of SP4/SB1 devices should work without crashing. The no_feedback quirk has been finally removed🎉 thanks to @StollD
If you find any issues, please open an issue and let us know.

EDIT: This fix is for "touch input crashing after some use" or "touch input broken when no_feedback=1". You may still encounter the other issues, especially regarding suspend.

[qzed]

Noteworthy changes in the v5.7.7 and v4.19.131 releases

There have been some changes to the Surface Aggregator Module driver that have now been integrated into the v5.7.7 and 4.19.131 releases (and also the 5.4 patches). More specifically:

• The first parts of the Surface Book 3 support have been merged: You can now control the dGPU power via surface-control or alternatively directly via sysfs, exactly like on the Surface Book 2. Further support (especially keyboard and touchpad) is currently still under development, so if you're using a Surface Book 3, you probably still want to head over to the Surface Aggregator Module repo and install the module from the feature/sb3-v2-branch.
• The Surface Pro 6 with MSHW0111 as SID-device-ID is now correctly set up. This means that the lid and performance-mode setting should now work correctly on those devices.
• The internals of the Surface Serial Hub (surface_sam_ssh) driver have been completely re-implemented with the goal of having an intrinsically asynchronous communication framework. This should ideally result in smoother communication with the EC and less hick-ups. More restructuring is yet to come, but this is a first big step towards getting the Surface Aggregator Module driver upstream. Additionally, some code has been cleaned up.

[qzed]

New packaging structure for Debian/Ubuntu packages

The packaging approach for .deb packages has changed with debian-5.7.7-2 and debian_lts-4.19.131-2. Previous packages did not remove outdated initrd files, unnecessarily consuming space on the boot partition. To fix this, we have now switched to meta-packages, meaning that each kernel is packaged with its version in the package name (e.g. linux-image-5.7.7-surface) and meta packages (linux-image-surface, linux-headers-surface, linux-image-surface-lts, linux-headers-surface-lts) can be used to keep the kernels up to date.

Unfortunately, this means that to upgrade the kernels (only this time, after that everything should work normal/as before), you'll have to manually uninstall the current kernel packages (linux-image-surface, linux-headers-surface, linux-image-surface-lts, and/or linux-headers-surface-lts) and re-install them afterwards. If you've already tried to upgrade, you can also complete the upgrade running sudo apt-get --fix-broken install, which should solve the issue for you automatically.

Additionally, we recommend you manually remove outdated initrd files after the upgrade. These files can be found under /boot, for example:

-rw-r--r--  1 root root 82644751 Mar 21 11:57 initrd.img-5.5.10-surface
-rw-r--r--  1 root root 82672122 Apr  1 15:33 initrd.img-5.5.13-surface
-rw-r--r--  1 root root 82116124 Mar 15 14:39 initrd.img-5.5.8-surface

Please remove only those that are outdated ending with -surface or -surface-lts, as indicated by their version. It is probably best, if you do this after uninstalling the old packages and before installing the new ones, as then you can remove all -surface/-surface-lts initrd files since installing the packages afterwards will re-build the new ones.

See also linux-surface/repo#3 for the issue reporting this problem.

In addition, we have decided to drop the custom linux-libc-dev packages. The necessary version of these packages should be provided by your distribution, so you should replace those (linux-libc-dev-surface, linux-libc-dev-surface-lts) by installing linux-libc-dev from the repository of your distribution.

[qzed]

Noteworthy changes in the v5.7.8 and v4.19.132 releases

More Surface Book 3 support has been merged, specifically:

• Preliminary support for HID devices, i.e. keyboard and touchpad. Known issue: The touchpad only works in single-touch mode after the clipboard has been re-attached (see Support for SB3 keyboard and touchpad (aka generify HID subsystem). surface-aggregator-module#42).
• Preliminary support for batteries. Known issue: At the moment, disconnect of the battery is not detected automatically when the clipboard is detached (see Surface Book 3 battery support surface-aggregator-module#44).
• The lid device should now work as expected (and wake the device when opened).
• Performance modes should be supported now.

This means, that (apart from the known issues) only support for the detachment daemon is missing, which can be found in an experimental stage in https://github.com/linux-surface/surface-aggregator-module/tree/feature/sb3-v3.

Additionally a bug in the dGPU part of the Surface Aggregator Module driver have been fixed, which caused the driver to deadlock when resuming from suspend with a dGPU turned on at boot time via module parameters (#223).

More details can be found in the commit messages: b70e5fb (v5.7), 7a41e16 (v5.4), and f866ce0 (v4.19).

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Noteworthy changes in the v5.7.8-2 and v4.19.132-2 releases

Unfortunately, the previous release introduced a bug, leading to HID devices handled via the SAM module (i.e. keyboard and touchpad) on the Surface Laptop not working any more. This should be fixed with the new releases. If this issue persists with those releases, please let us know at linux-surface/surface-aggregator-module#45.

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Noteworthy changes in the v5.7.11-1 and v4.19.135-1 releases

The most notable changes are:

• The patch required for setting dGPU power on the Surface Book 1 via ACPI call (see [SB] SAM Support (dGPU-detection, clipboard-detach handling) #93 for details) has been added to the repository and the latest kernels.
• Performance modes have been enabled for Surface Laptop 1 and 2.
• Support for D0-exit/D0-entry notifications, sent to the SAM controller when suspending (D0-exit) or resuming (D0-entry) on newer (gen. 7+) devices, has been added. This may (or may not) change suspend behavior slightly on those devices.
• Other internal changes and bug-fixes in the SAM driver.

More details can, as always, be found in the respective commit messages (e.g. for v5.7).

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Changes in v5.8.1

We switched IPTS support from built-in single-touch to our new-ish iptsd daemon. This means, that to get touch support, you'll have to install the iptsd package and start/enable the systemd iptsd.service (systemctl enable --now iptsd.service).

The iptsd daemon is still in somewhat early stages, but it should already provide a good replacement for the previous single-touch-only driver. It does support multi-touch (and stylus at the same time), but contact-area/pressure calculation is currently still missing, and things like jitter in contact points may need some improvement. Unfortunately, there have been no changes for Gen7 devices (SL3, SB3, SP7) yet.

If you experience any issues, let us know. You can always revert to the previous, single-touch-/stylus-only implementation by installing the old driver from https://github.com/linux-surface/intel-precise-touch/tree/old-driver (see "Building (DKMS)").

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Changes in v5.8.1-3 (Arch non-LTS), v5.8.1-2 (other), v4.19.139-3 (Arch LTS), and v4.19.139-2 (other)

In these versions, a new bus and device type has been added for System Aggregator Module (SAM) devices. Due to this, a couple of things have been changed with regards to userspace:

• First of all, the surface_sam_sid module has been replaced by surface_sam_device_hub. If you rely on this module name (e.g. in your mkinitcpio.conf for an encrypted device setup on the Surface Laptop 3 or Book 3), please make sure to update the name there.
• Second, the device path of the performance mode device has been changed. It can now be found under /sys/bus/ssam/devices/03:01:00:02/. The surface-control tool has been updated accordingly with version 0.2.7, so please make sure that it is up-to-date if you encounter any issues with the performance mode.

Known issues: On 7th generation devices (SP7/SL3/SB3), there currently is a warning emitted to the kernel log when the charger is connected or disconnected. This can be safely ignored and will be addressed in the next release. This has been fixed in the v5.8.3 and v4.19.141 releases.

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Changes in v5.8.5 and v4.19.142

• The mwifiex bug causing connection failure on certain WiFi networks has been fixed (Kernel 5.8.3-arch1-1-surface breaks wifi connection. #267).
• SAM devices are properly re-initialized after hibernation, fixing issues where the keyboard would stop working on the Laptop and Book 3 models ([Surface Laptop 2]Keyboard not working after resuming from hibernate #268)

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Changes in v5.8.7 and v4.19.143

• A bug has been fixed in the SAM driver regarding initialization of driver when probing against the battery in the base of the device.
• The sb1_dgpu_sw module has been integrated into the kernel/patches. This means you can now control your dGPU power directly via echo 1 | sudo tee /sys/bus/platform/devices/MSHW0041:00/dgpu_power to turn it on and echo 0 | sudo tee /sys/bus/platform/devices/MSHW0041:00/dgpu_power to turn it off. The acpi-call module is no longer required.

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Changes in v5.8.10 (Fedora v5.8.9) and v4.19.146

These releases contains two major changes that may need manual intervention:

• The device path for the performance-mode device has changed to /sys/bus/surface_aggregator/devices/01:03:01:00:01/. If you are using the surface-control utility, you will need to update that to v0.2.8. Specifically, the bus has been renamed to surface_aggregator and a domain ID has been introduced for Surface Aggregator Module (SAM) client devices.
• All SAM modules have been renamed. If you rely on their names, e.g. via intird/initram/..., you will need to update that when updating the kernel. The specific changes are:

  surface_sam_ssh          -> surface_aggregator
  surface_sam_debugfs      -> surface_aggregator_debugfs
  surface_sam_device_hub   -> surface_aggregator_registry
  surface_sam_san          -> surface_acpi_notify
  surface_sam_sid_power    -> surface_battery
  surface_sam_dtx          -> surface_dtx
  surface_sam_sid_vhf      -> surface_hid
  surface_sam_hps          -> surface_hotplug
  surface_sam_vhf          -> surface_keyboard
  surface_sam_sid_perfmode -> surface_perfmode
  

Additionally:

• A bug has been fixed where SAM client devices would not be registered on the Surface Book 3, causing keyboard, touchpad, and battery information to not work.
• Kconfig options for the Surface Aggregator Module have been renamed in accordance to renaming the modules. Consult the updated config files if you rely on those.

Known Issues: There is a bug that may be triggered under certain conditions, preventing the Surface Aggregator Module drivers to load. This will be fixed with the next releases, new kernels with the fix applied are already being built.

[kitakar5525]

Changes in v5.8.12-2 and v4.19.149-1 regarding mwifiex

suspend (for S0ix and AP scanning fix)

• Simplified mwifiex suspend fix change
  Tested on SB2 that S0ix is still working after this change.
  If by any chance you noticed S0ix is broken now even though you're sure it was working before, let me know by issues or IRC.

firmware reset feature fix

• Addressed deadlock when reset failed
  Now mwifiex should not prevent the computer from shutting down after reset failure
• Added quirk for firmware reset for Surface gen4+ and Surface 3 (Currently SP3 is not supported yet)
  Now mwifiex driver should reset fw properly by itself when fw went into a bad state.
  SP3 is not supported yet but at least deadlock should not happen now by the above deadlock fix.
• Added enable_device_dump module parameter and disabled device_dump by default
  Before this change, device_dump was performed when resetting wifi. This took a little bit long time. Now disabled by default.

auto_ds (auto deep sleep)

• Dropped auto_ds change (Now enabled by default again)
  It seems that auto_ds doesn't affect stability. Let's re-enable this and see what happens.
  You can still disable it again by the disable_auto_ds module parameter.

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Changes in v5.8.14 and v4.19.150

Changes regarding the Surface Aggregator Module

• HID and keyboard device names have been changed.
• Support for the caps-lock light has been implemented for the Surface Laptop 1 and 2.
• A bug has been fixed that would cause a kernel oops on thermal events.

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Changes in v5.8.15 (Arch v5.8.14-2) and v4.19.151

Changes regarding the Surface Aggregator Module:

• The HID and keyboard driver have been merged into a single module (surface_hid). If you have a Surface Laptop 1 or 2 and rely on the keyboard driver being in initram to unlock any encrypted partition, make sure to update this.
• The Surface DTX user-space interface has changed. If you rely on this, you'll have to update surface-control to v0.3.0 and surface-dtx-daemon to v0.2.0.
• Surface DTX support has been added for the Surface Book 3.

Additionally a patch has been added to fix a boot issue on the Surface Go series devices.

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Changes in v5.9.1, v5.8.16

Changes regarding IPTS:

• The user-space interface has been changed to improve stability, specifically during suspend/resume. You will need to update iptsd to v0.2.1.

Changes in v5.9.1, v5.8.16, v4.19.152

In addition to the changes above, there are the following changes have been made:

• Update DTX driver state after resume.

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Changes in v5.9.3, v5.8.18, and v4.19.154

Changes regarding the discrete GPU (dGPU):

• The dGPU power management has been re-worked completely. Instead of explicit power control via user-space (e.g. surface dgpu ...), power control will now be fully handled by the kernel and its runtime-PM. Runtime PM is capable of turning the dGPU off completely by putting it into D3cold, however for this to work certain conditions need to be fulfilled (notably, runtime PM needs to be enabled for the dGPU and it must not be in use by anything, including X11/XWayland, which will usually prevent that). In general, if no drivers are loaded (e.g. due to them being blacklisted) and runtime PM is enabled for the device, the dGPU will be turned off. See the commit-message and updated wiki page for more details. Specifically, see the latter for help with configuration.

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Changes in v5.9.6, v5.8.18-2, and v4.19.155

• A bug has been fixed on 7th generation Surface devices (Surface Pro 7, Surface Laptop 3, Surface Book 3), preventing the Intel LPSS driver from loading and ultimately breaking battery status reporting as well as keyboard and touchpad input.
• Improved stability in Surface Aggregator Module drivers. EC requests failing due to communication failures are now re-tried up to a total of three times.

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Changes in v5.10

• Initial camera support has been added. The front camera should now be accessible via libcamera (e.g. via the qcam or cam utilities) on the Surface Pro 4, 5, and 6, on the Surface Book 1 and 2, as well as on the Surface Go 2. Note that camera support is still in development, thus the image quality may not be as you expect (notably, the image will have a green tint due to missing white-balance algorithms). See https://github.com/linux-surface/linux-surface/wiki/Camera-Support for more details.

[StollD]

After a long and exhausting battle against the evil forces of the CI I was finally victorious! Or so... Anyways.

iptsd 0.3 was released

With this release we ported the iptsd daemon from Go to C, which helps tremendously with resource usage. If you are packaging iptsd or compile it from source, you will have to adjust your build scripts. There are some other notable changes, mostly regarding the behaviour of the stylus. Check out the release notes for more details.

[qzed]

Changes in v5.10.2 (Arch, Debian) and v5.9.16 (Fedora)

• Add SAM support for Surface Laptop Go. This includes:
  • Battery status support.
  • Performance-mode support.

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Changes in v5.10.10

• Add support for Ambient Light Sensor used in Surface Book 3, Surface Laptop 3, and Surface Pro 7.

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Changes in surface-control v0.3.1

The surface-control package will now add a surface-control group and change permissions of the performance-mode sysfs attribute so that surface performance set can be accessed from any user in that group (without needing sudo).

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Changes in v4.19.176 and v5.10.16-2

• Some modules have been split. Specifically

  • surface_hid has been split into
    • surface_hid_core for common components
    • surface_hid for support of Surface Laptop 3 and Surface Book 3
    • surface_kbd for support of Surface Laptop 1 and 2
  • surface_battery has been split into
    • surface_battery for battery support
    • surface_charger for AC support

  You may need to adjust your mkinitcpio/initram scripts accordingly.

• Some Kconfig options have changed (see configs for details).

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Changes in v5.10.16-3 and v5.10.17

• Update camera patches with support for VBLANK control.

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Changes in v5.10.21 and v5.11.5

• SAM:
  • Add support for Surface Pro 7+. Battery and charging status should now be displayed.
• IPTS:
  • Address suspend/resume issues
  • Flush buffers during shutdown, to prevent a timeout from CLEAR_MEM_WINDOW
  • Added initial support for setting gen7 devices into multitouch
• Add firmware file override for ath10k wifi driver. The firmware file names for board.bin and board-2.bin can now be overwritten via module parameters.

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Changes in v5.11.10 and v4.19.183

Thanks to @jonas2515, this update contains some noticeable WiFi improvements:

• Attempt to properly fix WiFi firmware crashes caused by power-save mode and suspend. This aims to fix WiFi crashes without the need to disable power-saving options and achieve better power consumption.
• Try to fix firmware wakeup issues.
• Try to reduce WiFi speed impact when Bluetooth is active.
• Fixes for P2P and AP modes. This should get miracast working.

Have a look at the following PRs for more infos:

• Properly fix wifi firmware crashes kernel#70
• mwifiex: Fixes for wifi p2p and AP mode kernel#71
• mwifiex: Add quirk resetting the PCI bridge on MS Surface devices kernel#72
• Bluetooth: btusb: Lower passive lescan interval on Marvell 88W8897 kernel#88
• Reenable host sleep kernel#89
• Enable wifi powersaving by default again kernel#90
• mwifiex: Try waking the firmware until we get an interrupt kernel#91

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Changes in v5.14.15

• Fix a timeout issue when detaching the Surface Book 3 base or Surface Pro 8 keyboard cover which in the worst-case scenario (quickly detaching and re-attaching) could cause those devices (keyboard, touchpad, and battery information) to no longer work and require a reboot.
• Change internal device handling of Surface Aggregator Module devices connected to the Surface Book 3 base. This should not have any noticeable effects, but if any issues occur please report them to [SB3] Request for Testing: Test latest releases with regards to detaching/re-attaching tablet/clipboard #623.

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Changes in v5.14.16

• Fix exposure and gain in OV8865 driver. This should fix the black image problem on the world-facing camera. See Fixes for the ov8865 driver kernel#113 for details. Thanks to @djrscally and @jhautbois.

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Changes in v5.14.16-2

• Include fix for SB1: 5.14.14 breaks hibernate in Ubuntu #617 (internal USB keyboard not working after hibernation on SB1). Thanks to @OliverUrbann for reporting this and tracking down the issue and fix.

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Changes in v5.15.14 and v5.16.1

• Include board data for Surface Go 3 to enable cameras. Credits go to @djrscally.

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Changes in v5.16

• Fix byttery status not showing ([S3] Battery Indicator not showing #608) on the Surface Pro 3. Credit goes to @jwrdegoede.

Changes in v5.17

• Fix IOMMU errors with IPTS (Fix IOMMU errors with IPTS kernel#120). Credit goes to @libanp.
• Refactor support for Surface 3 buttons. Credit goes to @jwrdegoede.

Changes in v5.17.5-2

• Fix cameras not showing up (Fix missing cameras in v5.17-surface* kernel#122). Credit goes to @djrscally.

Changes in v5.17.5-3

• Add auto-focus support for world-facing camera (Add ancillary links kernel#123, media: ipu3-cio2: Move functionality from .complete() to .bound() kernel#124). Credit goes to @djrscally.
• Refactor Surface Aggregator subsystem device hubs to prepare for upstreaming of Surface Pro 8 HID support.
• Re-work ACPI battery behavior by making "not-charging" the default. Credit goes to Werner Sembach ( https://patchwork.kernel.org/project/linux-acpi/patch/20220427154053.499203-1-wse@tuxedocomputers.com/).

Changes in v5.17.7

• Add support for tablet-mode switch via Surface Pro typecovers (hid/multitouch: Add support for surface pro type cover tablet switch kernel#125). Credit goes to @PJungkamp.

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Changes in v5.17.9

• Refactoring of Surface System Aggregator Module client device registration and client device hubs. Note: In case you use full disk encryption on the Surface Book 3 or Surface Pro 8, you will need to add surface_aggregator_hub to your initram.

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Changes in v5.17.9-2

• Fix keyboard battery warning with touch pen/stylus #791 for the Surface Go 2 and 3.

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Changes in v5.18.1

• Debian/Ubuntu: Android ashmem is no longer built into the kernel as it has been removed upstream. See ashmem being removed in upstream and Debian kernels anbox/anbox#2042 for details.

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Changes in v5.18.3 and v5.17.14

• Add support for tablet-mode switch on the Surface Go (platform/x86/intel: hid: Add Surface Go to VGBS allow list kernel#127). Credits go to @krnhotwings.
• Fix issues with camera not showing up (media: ipu3-cio2: Re-add .complete() to ipu3-cio2 kernel#128). Credits go to @djrscally.
• Support more Surface Aggregator events for the Laptop Studio (preparation for tablet-mode switch support).

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Changes in v5.18.4

• Add support for tablet-mode switch on the Surface Laptop Studio.

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Changes in v5.18.7

• Add support for HID-based sensors on the Surface Pro 8 (including the ones used for screen rotation). Thanks to @dr-Styki for testing! (See also SP8 - No sensors (INT3472 ?) #861).

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Changes in v5.19

• Warning: Cameras are currently broken with v5.19. If you rely on them, I recommend you hold off with updating for now. For details, refer to OV7251 fails probe, causing cameras to not show up #893.

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Changes in v6.0.7-2

• Partial support for the Surface Pro 9 (Intel), including:

  • battery and charger status,
  • internal HID devices (HID sensor hub and UCSI client), and
  • ACPI platform profile.

  TypeCover Support still needs testing/validation. More details can be found at Support for Surface Pro 9 #984.

  Thanks to @aj3423 for testing.

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Changes in v6.0.8

• Initial support for the TypeCover on the Surface Pro 9 (Intel), including keyboard and touchpad. Still missing: Support for the tablet mode switch.

  Thanks again to @aj3423 for testing.

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Changes in v6.0.8-3

• Add support for the Surface Aggregator Module on the Surface Laptop 5, including

  • battery and charger status,
  • internal HID devices (including keyboard and touchpad), and
  • ACPI platform profile.

  Thanks to @mnilsson76 for testing.

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Changes in v6.0.12

• Add patch allowing the hardware-reduced ACPI TAD on the SP7 to work as RTC.

  On the SP7, the ACPI Time and Date device (TAD) seems to be intended as primary real time clock (RTC). Changing the time via the standard CMOS RTC does not work. Unfortunately, the current kernel driver does not load for that as the SP7 uses a "hardware reduced" implementation, meaning it does not provide all functionality. The added patch allows the kernel to still use it as RTC.

  Credits go to @groengpx for the patch and @quo for reporting the issue.

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Changes in v6.0.17 / v6.1.3

• Re-introduce the "mwifiex: pcie: disable bridge_d3 for Surface gen4+" patch. This was previously dropped along with some other mwifiex patches as cleanup. While the majority of devices seem to work without it, some still require this quirk. This addresses WiFi crashes after suspend #1008.

[StollD]

Changes in v6.1.8-2 / v6.1.9

• Updated the IPTS kernel driver to the latest version. This includes stability updates and switches the userspace interface to a HID based one.
• Included the ITHC kernel driver written by @quo for touchscreen support on Surface Pro 7+ and later (only for Intel models).

Since the new kernel drivers use a HID based userspace interface, an updated version of iptsd is required!

See https://github.com/linux-surface/iptsd/releases/tag/v1.0.0 for the list of changes to iptsd (there are many).

If you had previously installed one of the kernel drivers through DKMS or built iptsd from source, please remove it completely before updating. Otherwise the custom-built versions might continue to override the built-in ones.

If you are building your own kernels from source, please note that the configuration option for IPTS has changed from CONFIG_MISC_IPTS to CONFIG_HID_IPTS. A new option CONFIG_HID_ITHC has been added alongside.

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Changes in v6.1.12

• Add USB_QUIRK_DELAY_INIT for Surface Go 3 Type-Cover to (hopefully) fix some touchpad initialization problems. Thanks to @WolfWings for reporting. See Surface Go 3 Typecover can't be configured under libinput without USB_QUIRK_DELAY_INIT or rebinding #1059 for details.

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Changes in v6.1.12-2

• Add support for the tablet-mode switch on the Surface Pro 9. Thanks go to @aj3423 for testing.
• Add workaround to fix shutdown issues on the Surface Pro 9. This may only work on some devices and might need further work. Please direct feedback to SL5/SP9 does not power off properly #1058 or Matrix chat. Thanks go to @aj3423 and @nouknouk for debugging and testing.

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Changes in v6.1.12-3 / v6.1.13

• Add workaround to fix shutdown issues on the Surface Laptop 5. This may only work on some devices and might need further work. Please direct feedback to SL5/SP9 does not power off properly #1058 or Matrix chat. Thanks go to @CheeseFM for debugging and testing.

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Changes in v6.1.14 / v6.2.2

• Add Surface Go 3 Board data for IR camera GPIOs. This enables the IR camera on the Surface Go 3. Credits go to @djrscally. See Go 3: Camera probe fails #1055 for details.

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Changes in v6.1.15-2 / v6.2.2-2

• Add patchsets for Intel Thread Director. This should improve performance and battery life of Alder-Lake devices (Surface Pro 9, Surface Laptop 5). See [Alder Lake] Intel Thread Director and battery life / performance #1084.

  The applied patchsets are taken from:

  • https://lore.kernel.org/lkml/20230207051105.11575-1-ricardo.neri-calderon@linux.intel.com/ (thread director support)
  • https://lore.kernel.org/lkml/20230207045838.11243-1-ricardo.neri-calderon@linux.intel.com/ (prerequisite for the above)

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Changes in v6.1.18 / v6.2.5

• Remap GPIO for the OV7251 (infrared) camera sensor to make it work (IPU3 based devices only). With that, all three camera sensors (front, back, infrared) should now work on most IPU3-based devices (Surface Book 2, Surface Pro 4-6, Surface Go 1-3). Note that capturing images from the IR camera is currently a [bit involved](Non-functional autofocus for rear camera Surface go 2 #1022 (comment), more work in libcamera is required to improve that. Credits go to @djrscally.

  See Non-functional autofocus for rear camera Surface go 2 #1022 and platform/x86: int3472: Remap reset GPIO for INT347E kernel#136 for details.

• Add support for wake from suspend via lid/Type-Cover on the Surface Pro 9.

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iptsd 1.2.0 has been released

This update to iptsd brings a very significant change: It replaces the old basic / advanced algorithms with a new algorithm that is a combination of both. This new algorithm is more robust towards noise (like the advanced one), while using vastly less resources (like the basic one).

If you have calibrated iptsd, you must remove the old calibration, as the values will no longer be accurate.

This update also changed the available config options. If you have a custom configuration, please check the values against the reference configuration.

For a full list of (user-facing) changes, look here: https://github.com/linux-surface/iptsd/releases/tag/v1.2.0

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Changes in v6.2.12 and v6.2.11 (Fedora)

• Remove Intel Thread Director patches due to suspend/resume issues reported in Wake from suspend failing on alder/raptor lake #1120.

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Changes in v6.3.6 (Fedora)

We have updated our Fedora packages to follow the upstream packages more closely. This fixes some issues with our old package, for example akmods should now work properly. Like the stock kernel, it will also keep around the last 3
versions automatically.

However, because the transition between the old and new packages is hitting an edge case in DNF, you MUST temporarily disable the running kernel protection. Otherwise DNF will refuse to remove the old package and install the new one.

You can do this by either rebooting into a stock kernel to do the upgrade, or by running the following command:

$ sudo dnf update --setopt=protect_running_kernel=False

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Changes in v6.5.8

• Add initial support for the Surface Laptop 3. In particular it's SAM EC, unlocking support for battery information and (ACPI) platform profiles.

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Changes in v6.6.1/v6.5.11-2

• Add initial Support for the Surface Laptop Studio 2. In particular it's SAM EC, unlocking support for the keyboard, HID-based sensors, battery information, (ACPI) platform profiles, and tablet-mode/display orientation. Note that we do not support the touchpad yet.

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Changes in v6.6.10 (Arch Linux) / v6.6.11 (Ubuntu/Fedora)

• Add driver for reading the fan speed on newer Surface devices with a fan. This driver is currently only enabled on the Surface Pro 9. Credits go to @iwanders (Surface fan module kernel#144).
• Add a driver for reading out temperature sensors connected via the Surface Aggregator Module. This driver is currently only enabled on the Surface Pro 9.