I saw in another bug that it already got backported in a PPA by Mario
Limonciello: https://launchpad.net/~superm1/+archive/ubuntu/lp1928393
However the bug manifestation looks different in that bug:
https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1928393
I attach a dmesg output from my PC, in which you see it differently.
This might also be a related bug:
https://gitlab.freedesktop.org/drm/amd/-/issues/934
** Bug watch added: gitlab.freedesktop.org/drm/amd/-/issues #934
https://gitlab.freedesktop.org/drm/amd/-/issues/934
** Attachment added: "amdgpu-errors-rx5500-complete-dmesg.txt"
https://bugs.launchpad.net/mesa/+bug/1932155/+attachment/5505043/+files/amdgpu-errors-rx5500-complete-dmesg.txt
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https://bugs.launchpad.net/bugs/1932155
Title:
*Fixed upstream* Crashes on Ubuntu 20.04.2 involving amdgpu/radeonsi
and various AMD GPUs (e.g. RX 5500 XT), please merge/backport if
possible!
Status in Mesa:
Unknown
Status in mesa package in Ubuntu:
New
Bug description:
In Ubuntu focal, 20.04.2, amdgpu/Xorg kernel driver crashes/resets
occur with various previous-generation AMD Radeon GPUs, for instance
Radeon RX 5500 XT. There is a recent fix in the mesa library.
Please see upstream mesa bug including available patch:
https://gitlab.freedesktop.org/mesa/mesa/-/issues/4866
Patch is available for mesa-stable, 21.1.3 and 21.1.4. It looks like
it could apply to 21.0 (which is in focal-proposed) too, with minor
effort.
Thanks if you can backport this!
amdgpu kernel bug: https://bugzilla.kernel.org/show_bug.cgi?id=213145
I can confirm it with linux-generic-hwe-20.04=5.8.0-55.62~20.04.1 from
focal-updates/focal-security
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