Hi,
I cannot enable G-Sync/VRR in Gnome 46 with experimental VRR flag enabled. VRR is unavailable in both X11 and Wayland. G-Sync works correctly in Windows 11.
The bug report has many lines reporting:
localhost.localdomain kernel: nvidia-modeset: WARNING: GPU:0: Chimei innolux corp. (DP-0): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
I can set both the minimum and maximum refresh rate without issue in Gnome.
I have seen mentions in the forum of known problems with 40 series optimus laptops and VRR - is my issue likely to be a driver problem or an issue with the EDID itself?
EDID:
00 ff ff ff ff ff ff 00 0d ae 1e 16 00 00 00 00
09 20 01 04 a5 22 16 78 03 0f 95 ae 52 43 b0 26
0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 6b 6e 00 a0 a0 40 84 60 30 20
a6 00 58 d7 10 00 00 1a 00 00 00 10 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 fe 00 54
36 47 33 36 80 31 36 30 47 4d 45 0a 00 00 00 00
00 02 41 0f 9e 00 00 00 00 0f 41 0a 20 20 01 b8
70 20 79 02 00 22 00 14 00 ee 11 85 ff 09 9f 00
2f 00 1f 00 3f 06 c7 00 09 00 05 00 25 01 09 00
ee 11 00 ee 11 3c f0 80 81 00 13 72 1a 00 00 03
01 3c f0 00 00 00 00 00 00 f0 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 83 90
----------------
Block 0, Base EDID:
EDID Structure Version & Revision: 1.4
Vendor & Product Identification:
Manufacturer: CMN
Model: 5662
Made in: week 9 of 2022
Basic Display Parameters & Features:
Digital display
Bits per primary color channel: 8
DisplayPort interface
Maximum image size: 34 cm x 22 cm
Gamma: 2.20
Supported color formats: RGB 4:4:4
First detailed timing includes the native pixel format and preferred refresh rate
Display is continuous frequency
Color Characteristics:
Red : 0.6796, 0.3203
Green: 0.2646, 0.6904
Blue : 0.1503, 0.0595
White: 0.3134, 0.3291
Established Timings I & II: none
Standard Timings: none
Detailed Timing Descriptors:
DTD 1: 2560x1600 60.001613 Hz 8:5 103.923 kHz 282.670000 MHz (344 mm x 215 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 10 Vsync 6 Vback 116 Vpol N
Dummy Descriptor:
Alphanumeric Data String: 'T6G36'
Manufacturer-Specified Display Descriptor (0x00): 00 00 00 02 41 0f 9e 00 00 00 00 0f 41 0a 20 20 '....A.......A. '
Extension blocks: 1
Checksum: 0xb8
----------------
Block 1, DisplayID Extension Block:
Version: 2.0
Extension Count: 0
Display Product Primary Use Case: None of the listed primary use cases; generic display
Video Timing Modes Type 7 - Detailed Timings Data Block:
DTD: 2560x1600 240.000204 Hz 16:10 432.000 kHz 1175.041000 MHz (aspect 16:10, no 3D stereo, preferred)
Hfront 48 Hsync 32 Hback 80 Hpol N
Vfront 10 Vsync 6 Vback 184 Vpol N
Dynamic Video Timing Range Limits Data Block:
Minimum Pixel Clock: 1175041 kHz
Maximum Pixel Clock: 1175041 kHz
Minimum Vertical Refresh Rate: 60 Hz
Maximum Vertical Refresh Rate: 240 Hz
Seamless Dynamic Video Timing Support: Yes
CTA-861 DisplayID Data Block:
Vendor-Specific Data Block (AMD), OUI 00-00-1A:
Version: 3.1
Minimum Refresh Rate: 60 Hz
Maximum Refresh Rate: 240 Hz
Flags 1.x: 0x00
Flags 2.x: 0x00
Maximum luminance: 0 (50.000 cd/m^2)
Minimum luminance: 0 (0.000 cd/m^2)
Unknown: 0x00 0x00
Checksum: 0x83
Checksum: 0x90
----------------
Preferred Video Timing if only Block 0 is parsed:
DTD 1: 2560x1600 60.001613 Hz 8:5 103.923 kHz 282.670000 MHz (344 mm x 215 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 10 Vsync 6 Vback 116 Vpol N
----------------
Preferred Video Timing if Block 0 and DisplayID Blocks are parsed:
DTD: 2560x1600 240.000204 Hz 16:10 432.000 kHz 1175.041000 MHz (aspect 16:10, no 3D stereo, preferred)
Hfront 48 Hsync 32 Hback 80 Hpol N
Vfront 10 Vsync 6 Vback 184 Vpol N
----------------
Native Video Resolution:
2560x1600
----------------
edid-decode SHA: 84ddf9155376 2021-10-03 10:37:45
Failures:
Block 0, Base EDID:
Alphanumeric Data String: Non-printable character.
Missing Display Product Name.
Missing Display Range Limits Descriptor.
EDID:
DisplayID: Missing DisplayID Product Identification Data Block.
DisplayID: Missing DisplayID Display Parameters Data Block.
DisplayID: Missing DisplayID Display Interface Features Data Block.
EDID conformity: FAIL
I believe this is similar to the issue described in the thread below, however the m16 uses a different display panel.
Gsync screen of the Alienware M18 R2 is not detected
nvidia-bug-report.log.gz (2.0 MB)
