Bug#1118349: Hanging the radeon video on AMD APU, reopening #879992

From	Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1118349: Hanging the radeon video on AMD APU, reopening #879992
Date	2025-10-31 22:00 +0100
Message-ID	<LM4o1-9txm-3@gated-at.bofh.it> (permalink)
References	<LHcmd-65Ut-7@gated-at.bofh.it> <LHcmd-65Ut-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Sat, Oct 18, 2025 at 01:22:04PM +0300, Roman Savochenko wrote:
> Package: linux-image-amd64
> Version: 6.12.48-1
> Severity: critical
> Tags: upstream
> X-Debbugs-Cc: debian-amd64@lists.debian.org
> User: debian-amd64@lists.debian.org
> Usertags: amd64
> 
> That is a reopening the bug #879992, which reproduction started from Debian 9
> on AMD A8-6500 APU.
> 
> And only Debian 11 is where the bug was not reproducing on Linux kernel 5.
> 
> >From Debian 12 (any Linux kernel 6) and now in Debian 13 it is obligatory
> reproducing not as restarting but freezing with black screen and on any kernel
> 6 version (also 6.16.3+deb13-amd64).
> 
> And it is worarounded only by the kernel option "radeon.dpm=0".

Can you please provide the output of `lspci -nn`. With that input a
quirk can be added that make the parameter dpm default to 0 for your
hardware.

Best regards
Uwe

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Bug#1118349: Hanging the radeon video on AMD APU, reopening #879992 Uwe Kleine-König <u.kleine-koenig@baylibre.com> - 2025-10-31 22:00 +0100
  Bug#1118349: Hanging the radeon video on AMD APU, reopening #879992 Roman Savochenko <roman@oscada.org> - 2025-11-01 07:10 +0100

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