Just for information, in case anyone runs into this bug. I'm currently using kernel 6.12.101+deb13-amd64 and dmesg was still reporting error messages. But an AI agent suggested that I reload AMD’s non-free firmware and add this file:
/etc/modprobe.d/amdgpu.conf with the following content: options amdgpu cik_support=1 options radeon cik_support=0 And now, my system is working perfectly. If only I’d known this sooner! The problem with the free package used alone is that it’s very slow, even though it’s very stable. You can’t use wayland either. There are also a few minor visual glitches.
