On Sun, May 03, 2026 at 10:12:50 -0500, Tom Browder wrote: > 0a:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. > [AMD/ATI] Cezanne [1002:1638] (rev c8)
According to my web searches, the Cezanne is an "APU", and "AMD APU" (accelerated processing unit) is a marketing term that AMD uses for a combination CPU and graphics processing unit on a single die. <https://en.wikipedia.org/wiki/AMD_APU> According to <https://cateee.net/lkddb/web-lkddb/DRM_AMDGPU.html> this device (1638) is supported at the kernel level in the Trixie kernel line, among others. As far as firmware goes, the obvious starting point would be to ensure you've installed the firmware-amd-graphics package. On Sun, May 03, 2026 at 10:14:52 -0500, Tom Browder wrote: > I don't have a copy of the original message. You could start with "sudo dmesg | grep -i firmware" to see what's missing according to your currently running kernel. If the system has been running long enough to generate error messages that push the firmware loading messages out of the dmesg buffer, then you may have to look in the systemd journal or files in /var/log/ if you have plain text file logging enabled. If firmware-amd-graphics is installed but you're still getting missing firmware errors after a reboot, then we'll need to know the exact message from the kernel to track down the specific files you need.
