Bug#1142908: linux-image-6.12.85+deb13-amd64: [REGRESSION 6.12.74..6.12.85] amdgpu UVD v6 ring timeout on Polaris12/Lexa 1002:6987

From	Salvatore Bonaccorso <carnil@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1142908: linux-image-6.12.85+deb13-amd64: [REGRESSION 6.12.74..6.12.85] amdgpu UVD v6 ring timeout on Polaris12/Lexa 1002:6987
Date	2026-07-27 21:50 +0200
Message-ID	<NlzuN-7l6B-1@gated-at.bofh.it> (permalink)
References	<Nlzl7-7l2H-3@gated-at.bofh.it> <Nlzl7-7l2H-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

Show all headers | View raw

Control: tags -1 + moreinfo upstream

On Mon, Jul 27, 2026 at 01:30:42PM -0600, Kai Chatterton wrote:
> Package: src:linux
> Version: 6.12.85-1
> Severity: important
> X-Debbugs-Cc: kchatt@ls.byu.edu
> 
> Dear Maintainer,
> 
> I am reporting an amdgpu regression affecting three identical Dell OptiPlex 7090 systems.
> 
> System:
> - Dell OptiPlex 7090
> - Intel Core i7, Rocket Lake generation
> 
> Integrated GPU:
> - Intel RocketLake-S GT1 / UHD Graphics 750
> - PCI ID 8086:4c8a
> - Driver: i915
> 
> Discrete GPU:
> - AMD Lexa / Polaris12
> - PCI ID 1002:6987
> - Subsystem ID 1028:1713
> - Driver: amdgpu
> 
> The last known good Debian kernel is 6.12.74+deb13+1-amd64. The
> first known bad is 6.12.85+deb13-amd64.

As you seem to fairly easy reproduce the issue, can you pleas bisect
the kernel between 6.12.74 and 6.12.85 upstream and report back which
commits breaks the usecase?

Are you familiar with bisecting the kernel or do you need instructions
on how to do it?

Regards,
Salvatore

Back to linux.debian.kernel | Previous | Next | Find similar | Unroll thread

Thread

Bug#1142908: linux-image-6.12.85+deb13-amd64: [REGRESSION 6.12.74..6.12.85] amdgpu UVD v6 ring timeout on Polaris12/Lexa 1002:6987 Salvatore Bonaccorso <carnil@debian.org> - 2026-07-27 21:50 +0200

csiph-web