Bug 213351

Summary:	[bisected][amdgpu]Blank laptop console after inactivity timeout
Product:	Drivers	Reporter:	Duncan Roe (duncan_roe)
Component:	Video(Other)	Assignee:	drivers_video-other
Status:	RESOLVED CODE_FIX
Severity:	normal	CC:	alexdeucher, harry.wentland
Priority:	P1
Hardware:	Intel
OS:	Linux
Kernel Version:	5.13-rc4	Subsystem:
Regression:	No	Bisected commit-id:

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