Just for a small update: Issue still persists, even with all packages updated to a current Debian Sid (including adding the new "non-free-firmware" section to apt).
ii xserver-xorg-video-radeon 1:19.1.0-3 ii libc6:amd64 2.36-8 ii libc6:i386 2.36-8 ii libdrm-radeon1:amd64 2.4.114-1 ii libdrm-radeon1:i386 2.4.114-1 ii libgbm1:amd64 22.3.6-1 ii libgbm1:i386 22.3.6-1 ii libudev1:i386 252.6-1 ii xserver-xorg-core 2:21.1.7-1 ii firmware-amd-graphics 20230210-2 $ uname -a Linux linus-lptp 6.1.0-5-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.12-1 (2023-02-15) x86_64 GNU/Linux Regards, Linus