My initial setup of related install .debs :
xserver-xorg-video-amdgpu 19.1.0-2 installed but it doenst have new version backported .
firmware-amd-graphics 20210315-3 But there is a new version of the firmware backported.
So i installed :
firmware-amd-graphics 20230210-4~bpo11+1
In the firmware file it contains related firmware:
amdgpu/sienna_cichlid_ce.bin
But the issue remains.
I remember a Phoronix article on amdgpu changing the way it releases the firmware. In that case could it be that a newer version of amdgpu is also needed?
Also it seem to me strange that both versions of xserver-xorg-video-amdgpu support the same chip families. I think there is something no rigth here. What is the relation of the driver and the firmware .debs? Can one support a family and not the other ?
Package: xserver-xorg-video-amdgpu
Version: 19.1.0-2
This package provides the 'amdgpu' driver for the AMD Radeon cards. The
following chip families should be supported: Bonaire, Hawaii, Kaveri, Kabini
Mullins, Iceland, Tonga, Carrizo, Fiji, Stoney.Package: xserver-xorg-video-amdgpu
Version: 23.0.0-1
This package provides the 'amdgpu' driver for the AMD Radeon cards. The
following chip families should be supported: Bonaire, Hawaii, Kaveri, Kabini
Mullins, Iceland, Tonga, Carrizo, Fiji, Stoney.
Refs:
Xorg RadeonFeature althougth not sure if it applies to amdgpu .
Archwiki page on amdgpu . Althought archwiki is another distro sometimes you find usefull info. not in my current issue thought..