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@rmoalic rmoalic commented Jul 8, 2025

I could not figure out what some of the proprietary (0xe - 0xf) are doing (if anything). 0x14 and 0xe0 are basically duplicate.

ddccontrol version 1.0.3
Copyright 2004-2005 Oleg I. Vdovikin (oleg@cs.msu.su)
Copyright 2004-2006 Nicolas Boichat (nicolas@boichat.ch)
This program comes with ABSOLUTELY NO WARRANTY.
You may redistribute copies of this program under the terms of the GNU General Public License.

Reading EDID and initializing DDC/CI at bus dev:/dev/i2c-2...

EDID readings:
	Plug and Play ID: SAM06A3 [Samsung SyncMaster E1920]
	Input type: Analog

Capabilities:
ioctl(): Inappropriate ioctl for device
ioctl returned -1
ioctl(): Inappropriate ioctl for device
ioctl returned -1
ioctl(): Inappropriate ioctl for device
ioctl returned -1
ioctl(): Inappropriate ioctl for device
ioctl returned -1
ioctl(): Inappropriate ioctl for device
ioctl returned -1
ioctl(): Inappropriate ioctl for device
ioctl returned -1
ioctl(): Inappropriate ioctl for device
ioctl returned -1
ioctl(): Inappropriate ioctl for device
ioctl returned -1
ioctl(): Inappropriate ioctl for device
ioctl returned -1
Capabilities read fail.

Controls (valid/current/max) [Description - Value name]:
Control 0x02: +/2/255 C [New Control Value - Some values changed]
Control 0x04: +/0/1 C [Restore Factory Defaults]
Control 0x05: +/0/1 C [Restore Brightness and Contrast]
Control 0x06: +/0/1 C [Restore Factory Default Geometry]
Control 0x08: +/0/1 C [Restore Factory Default Color]
Control 0x0e: +/80/160 C [Image Lock Coarse (Clock)]
Control 0x10: +/100/100 C [Brightness]
Control 0x12: +/75/100 C [Contrast]
Control 0x14: +/2/11   [???]
Control 0x16: +/50/100 C [Red maximum level]
Control 0x18: +/50/100 C [Green maximum level]
Control 0x1a: +/50/100 C [Blue maximum level]
Control 0x1e: +/0/2 C [Automatically adjust]
Control 0x20: +/66/100 C [Horizontal Position]
Control 0x30: +/12/30 C [Vertical Position]
Control 0x3e: +/2/31 C [Image Lock Fine (Clock Phase)]
Control 0x54: +/0/2   [???]
Control 0x60: +/1/3   [???]
Control 0x62: +/50/100   [???]
Control 0x6c: +/128/255   [???]
Control 0x6e: +/128/255   [???]
Control 0x70: +/128/255   [???]
Control 0x87: +/15/25 C [Sharpness]
Control 0xaa: +/0/3   [???]
Control 0xb6: +/3/9   [???]
Control 0xc6: +/1/1   [???]
Control 0xc8: +/5/16   [???]
Control 0xc9: +/1/0   [???]
Control 0xca: +/2/2 C [On Screen Display - Enable]
Control 0xcc: +/2/30 C [Language - English]
Control 0xd6: +/1/4 C [DPMS Control - On]
Control 0xdb: +/4/4 C [Screen Size - Wide]
Control 0xdc: +/6/5 C [Magic Bright Mode - Custom]
Control 0xdf: +/512/514   [???]
Control 0xe0: +/3/515 C [Color Preset - Normal]
Control 0xe1: +/1/1 C [Power control - On]
Control 0xe2: +/0/1   [???]
Control 0xe4: +/0/2   [???]
Control 0xe5: +/0/1   [???]
Control 0xe8: +/0/7 C [Custom key - MagicBright]
Control 0xe9: +/0/1 C [Button Access - Unlocked]
Control 0xea: +/0/4 C [Color Effect - Off]
Control 0xec: +/0/6 C [Magic Angle Mode - Off]
Control 0xed: +/158/255   [???]
Control 0xee: +/154/255   [???]
Control 0xef: +/158/255   [???]
Control 0xf0: +/0/3 C [MagicColor - Off]
Control 0xf2: +/0/2 C [Gamma - Mode1]
Control 0xf3: +/1/2   [???]
Control 0xf5: +/0/2 C [On Screen Display (Samsung) - Enable]
Control 0xf6: +/1/2   [???]
Control 0xf7: +/0/4 C [ECO Mode - Off]
Control 0xfe: +/1/2   [???]

@larstobi larstobi merged commit 2524668 into ddccontrol:master Aug 14, 2025
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2 participants