User defined features not overriding monitor values #395
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Please clarify. The parsed capabilities that you show is the output with option --enable-udf (which is the default). Is that correct? In the following, I'm omitting --model "LS27A800U". Add that option if you indeed are using it to distinguish among multiple monitors. What is the full output from ddcutil capabilities --disable-udf --verbose --disable-capabilities-cache? With both --enable udf and --disable-udf*, please show the output of: Thank you. |
Yes, and afaik it's detecting the udf file for that monitor as shown in the output: > ddcutil capabilities --model "LS27A800U" --disable-udf --verbose --disable-capabilities-cache
Unable to open directory /sys/devices/pci0000:00/0000:00:03.2/0000:10:00.0/drm: No such file or directory
Unparsed capabilities string: (prot(monitor)type(lcd)model(FALCON)cmds(01 02 03 07 0C 4E F3 E3)vcp(02 04 05 08 0B 0C 10 12 14(01 04 05 06 07 08 0A 0B) 16 18 1A 6C 6E 70 AC AE B6 C0 C6 C8 C9 CA CC(00 02 03 04 05 08 09 0A 0D) D6(01 04) DC(00 01 02 03 04) DF 60(01 03) 62 8D FF)mswhql(1)mccs_ver(2.0)asset_eep(32)mpu_ver(01))
Model: FALCON
MCCS version: 2.0
Commands:
Op Code: 01 (VCP Request)
Op Code: 02 (VCP Response)
Op Code: 03 (VCP Set)
Op Code: 07 (Timing Request)
Op Code: 0C (Save Settings)
Op Code: 4E (Unrecognized operation code)
Op Code: F3 (Capabilities Request)
Op Code: E3 (Capabilities Reply)
VCP Features:
Feature: 02 (New control value)
Feature: 04 (Restore factory defaults)
Feature: 05 (Restore factory brightness/contrast defaults)
Feature: 08 (Restore color defaults)
Feature: 0B (Color temperature increment)
Feature: 0C (Color temperature request)
Feature: 10 (Brightness)
Feature: 12 (Contrast)
Feature: 14 (Select color preset)
Values (unparsed): 01 04 05 06 07 08 0A 0B
Values ( parsed):
01: sRGB
04: 5000 K
05: 6500 K
06: 7500 K
07: 8200 K
08: 9300 K
0a: 11500 K
0b: User 1
Feature: 16 (Video gain: Red)
Feature: 18 (Video gain: Green)
Feature: 1A (Video gain: Blue)
Feature: 6C (Video black level: Red)
Feature: 6E (Video black level: Green)
Feature: 70 (Video black level: Blue)
Feature: AC (Horizontal frequency)
Feature: AE (Vertical frequency)
Feature: B6 (Display technology type)
Feature: C0 (Display usage time)
Feature: C6 (Application enable key)
Feature: C8 (Display controller type)
Feature: C9 (Display firmware level)
Feature: CA (OSD)
Feature: CC (OSD Language)
Values (unparsed): 00 02 03 04 05 08 09 0A 0D
Values ( parsed):
00: Reserved value, must be ignored
02: English
03: French
04: German
05: Italian
08: Portuguese (Portugal)
09: Russian
0a: Spanish
0d: Chinese (simplified / Kantai)
Feature: D6 (Power mode)
Values (unparsed): 01 04
Values ( parsed):
01: DPM: On, DPMS: Off
04: DPM: Off, DPMS: Off
Feature: DC (Display Mode)
Values (unparsed): 00 01 02 03 04
Values ( parsed):
00: Standard/Default mode
01: Productivity
02: Mixed
03: Movie
04: User defined
Feature: DF (VCP Version)
Feature: 60 (Input Source)
Values (unparsed): 01 03
Values ( parsed):
01: VGA-1
03: DVI-1
Feature: 62 (Audio speaker volume)
Feature: 8D (Audio Mute)
Feature: FF (Manufacturer specific feature)> ddcutil --model "LS27A800U" --enable-udf getvcp 60 70 --disable-capabilities-cache
Unable to open directory /sys/devices/pci0000:00/0000:00:03.2/0000:10:00.0/drm: No such file or directory
VCP code 0x60 (Input Source ): HDMI-2 (sl=0x06)
VCP code 0x70 (Input Source2 ): Unrecognized value (sl=0x32)Every ddcutil --model "LS27A800U" --enable-udf setvcp 60 x05 --disable-capabilities-cache
# monitor switches to HDMI input
ddcutil --model "LS27A800U" --enable-udf setvcp 60 x11 --disable-capabilities-cache
# Turns monitor off for a second as if trying to change input but goes back to whatever the input was set before
ddcutil --model "LS27A800U" --enable-udf setvcp 70 x05 --disable-capabilities-cache
# Turns screen yellow
ddcutil --model "LS27A800U" --enable-udf setvcp 70 50 --disable-capabilities-cache
# Restores the original colors> ddcutil --model "LS27A800U" --disable-udf getvcp 60 70 --disable-capabilities-cache
Unable to open directory /sys/devices/pci0000:00/0000:00:03.2/0000:10:00.0/drm: No such file or directory
VCP code 0x60 (Input Source ): Composite video 2 (sl=0x06)
VCP code 0x70 (Video black level: Blue ): current value = 50, max value = 100The ddcutil --model "LS27A800U" --disable-udf setvcp 60 x05 --disable-capabilities-cache
# monitor switches to HDMI input
ddcutil --model "LS27A800U" --disable-udf setvcp 60 x11 --disable-capabilities-cache
# Turns monitor off for a second as if trying to change input but goes back to whatever the input was set before
ddcutil --model "LS27A800U" --disable-udf setvcp 70 x05 --disable-capabilities-cache
# Turns screen yellow
ddcutil --model "LS27A800U" --disable-udf setvcp 70 50 --disable-capabilities-cache
# Restores the original colorsI also tried to add a similar mccs for another monitor with the same results, the file seems to be picked up by ddcutil but not applied. |
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There are two different contexts here. First, is whether user supplied feature definitions are used to interpret the output of getvcp. This appears to be working properly. Second, is whether UDF feature definitions are reflected in capabilities command output. This was not happening correctly. If a feature is user-specified, the feature name is now prefaced with "UDF:". If the feature is non-continuous, the header for the values list is "UDF Values" instead of values. Also, for verbose output the "Values (unparsed)" line is not shown, as that is what is extracted from the monitor's capabilities string, but ignored for user defined features. These changes have been applied to branch 2.1.5-dev. |
> cat .local/share/ddcutil/SAM-LS27A800U-29092.mccs MFG_ID SAM MODEL LS27A800U PRODUCT_CODE 29092 MCCS_VERSION 2.1 FEATURE_CODE 60 Input Source ATTRS NC RW VALUE x05 HDMI-1 VALUE x06 HDMI-2 VALUE x0f DisplayPort FEATURE_CODE 70 Input Source2 ATTRS NC RW VALUE x05 HDMI VALUE x0f DisplayPort # VALUE x06 HDMI Maybe usb-c if connected, currently switches to HDMI-1If I disable udf the only thing that changes is feature 70:
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