Bug 923123 – sys-kernel/gentoo-sources-6.1.74 - amdgpu error

• Status: RESOLVED UPSTREAM
• Product: Gentoo Linux

[Description Richard Ostrow 2024-01-28 14:55:42 UTC]

Created attachment 883439 [details]
dmesg output after error state

Occasionally get this unrecoverable error when screens are allowed to dim/sleep. Full dmesg captured (flooded with messages, bootup no longer retained). This is on a laptop with an RX7900M GPU and Ryzen 9 7945HX CPU with the built-in GPU disabled in the BIOS to get partial support for the RX7900.

[Comment 1 Richard Ostrow 2024-01-28 14:56:54 UTC]

Created attachment 883440 [details]
dmesg on a "good" boot

[Comment 2 Richard Ostrow 2024-01-28 14:58:34 UTC]

Also of note:

using sys-kernel/linux-firmware-20240115-r1
using media-libs/mesa-23.3.4

[Comment 3 Mike Pagano 2024-01-28 15:03:12 UTC]

As suggested upstream, can you try to add amdgpu.dcdebugmask=0x10 to your kernel command line ?

[Comment 4 Richard Ostrow 2024-01-28 15:18:33 UTC]

Adding that line to my kernel command line now, will see if it happens again

[Comment 5 Mike Pagano 2024-02-16 13:35:45 UTC]

(In reply to Richard Ostrow from comment #4)
> Adding that line to my kernel command line now, will see if it happens again

Anything to report here ?

[Comment 6 Richard Ostrow 2024-02-17 17:45:37 UTC]

Nothing new... has not repeated after adding the line. What does that line do?

[Comment 7 Mike Pagano 2024-02-17 19:01:39 UTC]

(In reply to Richard Ostrow from comment #6)
> Nothing new... has not repeated after adding the line. What does that line
> do?

It disables Panel Self Refresh.  Can you add your results to the upstream bug, please ?

[Comment 8 Mike Pagano 2024-03-01 15:00:41 UTC]

We're watching the upstream bug and will backport any fixes identified