Bug 213351 - [bisected][amdgpu]Blank laptop console after inactivity timeout
Summary: [bisected][amdgpu]Blank laptop console after inactivity timeout
Status: RESOLVED CODE_FIX
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(Other) (show other bugs)
Hardware: Intel Linux
: P1 normal
Assignee: drivers_video-other
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-06-07 03:35 UTC by Duncan Roe
Modified: 2021-11-28 08:02 UTC (History)
2 users (show)

See Also:
Kernel Version: 5.13-rc4
Subsystem:
Regression: No
Bisected commit-id:

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Description Duncan Roe 2021-06-07 03:35:22 UTC 
Boot to console (**not** X), after laptop screen goes blank due to inactivity, touch a key to get display back. Laptop backlight comes on but nothing is displayed. HDMI display comes back as it should.
git bisect says "first bad commit: [9127daa0a8d88a6e6452eb8b7c9be4c3f42a867e] drm/amd/display: Guard ASSR with internal display flag".
Previous commit is 6c8e1f3b95a2. I can "fix" the bug at 5.13-rc4 by
```
git diff 9127daa0a8d8 6c8e1f3b95a2|patch -p1
```
I have 3 AMD systems but only the laptop has the blank screen bug. It is an HP model 15-bw040AU, Product Id 1ZH49PA#ABG.
Comment 1 Artem S. Tashkinov 2021-06-07 09:37:09 UTC 
Post here as well: https://gitlab.freedesktop.org/drm/amd/-/issues
Comment 2 Duncan Roe 2021-06-15 03:19:37 UTC 
Posted https://gitlab.freedesktop.org/drm/amd/-/issues/1620 6 days ago
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