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Bug#1042374: linux-image-6.1.0-0.deb11.9-amd64: The module radeon is unstable, the system reboots often infinitively



After a lot of tests, I have found the culprit of this instability.
If I blacklists the radeon and amdgpu module, all works fine but the display resolution is too low.

If I enabled again, as soon as the radeon is loaded, the machine reboots.

If I blacklist radeon and manually I modprobe radeon, the machine reboots immediately.

I can start the machine with radeon one times of 5 with the normal mode or one times of 2 with the maintenance mode. After a reboot after a crash, the usb mouse does not work, but on the second success, the usb mouse works fine. Restarting the machine after a poweroff does never permit a success boot.

firmware-amd-graphics 20230515-3 from SID does not fix this issue.

lspci [ grep VGA
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Trinity 2 [Radeon HD 7480D]

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Rpnpif


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