Bug 217636 - Commit edcfed8671 disables previously supported video resolutions (on AMD Rembrandt)
Summary: Commit edcfed8671 disables previously supported video resolutions (on AMD Rem...
Status: RESOLVED PATCH_ALREADY_AVAILABLE
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - non Intel) (show other bugs)
Hardware: All Linux
: P3 normal
Assignee: drivers_video-dri
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-07-05 20:23 UTC by Saverio Miroddi
Modified: 2023-07-06 09:30 UTC (History)
1 user (show)

See Also:
Kernel Version: 6.3.9
Subsystem:
Regression: Yes
Bisected commit-id: aa9704d5127f06c9ffedb0480d2788b87fecedfb

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Description Saverio Miroddi 2023-07-05 20:23:10 UTC 
I have a laptop with an AMD Rembrandt APU (6800U).

The display has a native resolution of 2880x1800, however, via `~/.config/monitors.xml`, I set it 1920x1200.

After the upgrade to the kernel v6.3.9, the resolution 1920x1200 is not allowed anymore, and on login, I see a brief popup with an error.

After bisection, i've isolated the culprit to commit `edcfed8671` ("drm/amd/display: edp do not add non-edid timings").
Comment 1 Alex Deucher 2023-07-05 21:31:23 UTC 
The revert of that patch is already on it's way to Linus.
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