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Bug#1144227: firmware-amd-graphics: AMD GPU displays visual glitches while under load, mostly outright incorrect data

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Hello.

I will upgrade to the newest kernel image the ASAP and will update you about the results.

I also checked the firmware version than I installed, 20260622-1 is currently installed.

Kind regards,
-Homer Haddock

On Wednesday, August 12th, 2026 at 3:12 PM, Martin Steigerwald <martin@lichtvoll.de> wrote:

> Greetings.
> 
> Replying as an user – I am not a member of the Debian kernel team:
> 
> Homer Haddock - 12.08.26, 20:14:37 CEST:
> > I have a laptop equipped with an AMD Ryzen 5 3500U using integrated
> > graphics. After installing the latest kernel from Testing
> > (7.1.7+deb14-amd64) I noticed a problem while using it.
> > At first it was minor glitches of about 5% of the screen being replaced
> > with random blocky colours for just long enough to be noticed but would
> > disappear before it impacted anything.
> >
> > Recently it spiked to 75% of the screen with multiple flashes in short
> > succession. I checked btop and it reported high CPU usage but low load
> > average. So it seems as though a lack of available CPU impacts this
> > bug.
> >
> > I would normally figure out this problem myself but I couldn't find any
> > helpful information besides bug #1093084.
> 
> I saw something similar with vanilla 7.1.7 kernel – self-compiled – on my
> ThinkPad T14 AMD Gen 5 with integrated AMD Radeon 780M GPU. I did not see
> the 75% case, but under usual workloads the CPU is not fully utilized on
> this system.
> 
> It went away with vanilla 7.1.8. Can you try with 7.1.8 once the Debian
> kernel image for that becomes available?
> 
> I use firmware-amd-graphics 20260622-1 package.
> 
> Best,
> --
> Martin
> 
> 
> 

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Bug#1144227: firmware-amd-graphics: AMD GPU displays visual glitches while under load, mostly outright incorrect data Homer Haddock <homerhaddock@proton.me> - 2026-08-12 20:20 +0200
    Re: Bug#1144227: firmware-amd-graphics: AMD GPU displays visual glitches  while under load, mostly outright incorrect data Martin Steigerwald <martin@lichtvoll.de> - 2026-08-12 23:20 +0200
    Bug#1144227: firmware-amd-graphics: AMD GPU displays visual glitches while under load, mostly outright incorrect data Homer Haddock <homerhaddock@proton.me> - 2026-08-13 04:40 +0200
  Bug#1144227: firmware-amd-graphics: AMD GPU displays visual glitches while under load, mostly outright incorrect data Homer Haddock <homerhaddock@proton.me> - 2026-08-18 01:30 +0200

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