#1125155 /usr/share/bug/linux-image-6.12.57+deb13-amd64/include-pci: amdgpu flip timeout, system freezes

Package:
src:linux
Source:
src:linux
Submitter:
Olivier Cailloux
Date:
2026-01-29 07:17:01 UTC
Severity:
normal
Tags:
#1125155#5
Date:
2026-01-09 20:37:27 UTC
From:
To:
Dear Maintainer,

System often freezes, unpredictably, including under low load.
#1125155#10
Date:
2026-01-11 11:52:11 UTC
From:
To:
https://www.perplexity.ai/search/6bbe659b-9626-4c61-bd76-b6d6fa95b5b5


Пт, 9 янв. 2026 г. в 22:39, Olivier Cailloux <
olivier.cailloux@dauphine.psl.eu>:
#1125155#15
Date:
2026-01-11 11:52:11 UTC
From:
To:
https://www.perplexity.ai/search/6bbe659b-9626-4c61-bd76-b6d6fa95b5b5


Пт, 9 янв. 2026 г. в 22:39, Olivier Cailloux <
olivier.cailloux@dauphine.psl.eu>:
#1125155#20
Date:
2026-01-20 04:59:58 UTC
From:
To:
Hi Olivier,

Can you please provide the full boot log including the amdgpu related
errors you are seeing? So please the full boot log from the start
until up to the probleme is triggered.

Regards,
Salvatore
#1125155#27
Date:
2026-01-26 18:04:47 UTC
From:
To:
Le mardi 20 janvier 2026 à 05:59 +0100, Salvatore Bonaccorso a écrit :

Sure. Here it is, obtained by running “sudo LC_TIME=C journalctl -b
88f876ad2f714d8cb9a5256a65a070e9 > journal.txt”.
#1125155#32
Date:
2026-01-26 18:05:53 UTC
From:
To:
… with attachment. Sorry.
#1125155#39
Date:
2026-01-28 21:48:39 UTC
From:
To:
Olivier:

amdgpu 0000:03:00.0: [drm] *ERROR* [CRTC:91:crtc-0] flip_done timed out
[drm:amdgpu_dm_atomic_check [amdgpu]] *ERROR* [CRTC:91:crtc-0] hw_done
or flip_done timed out

This is almost always a symptom of a failure of the GPU's firmware.
These GPUs consist of many "IP blocks" (Intellectual Property) - better
known as firmware - for the
different functions each 'block' provides.

The error is telling us the driver is waiting for an acknowledgement
from the GPU firmware but it never arrives.

In most cases it would require the firmware/block to be reset and
restarted to regain functionality.

The causes of these errors across a vast number of AMD GPUs are not
understood even by the AMD Linux GPU developers!

  Recently though there's an initiative to try to deal with the symptom
by identifying where the
problem is and restarting the IP block.

We'll have to wait and hope they follow through and we get a commit that
can also be back-ported.

See https://lkml.org/lkml/2026/1/22/2079

I build and run latest mainline (currently on 6.19.0-rc7+debian+tj) and
see the flip_done timeout occassionally so if the thread leads to a
usuable patch I'll be testing it.

Tj.