On Mon, 16 Mar 2026 at 17:30, Haines Brown <[email protected]> wrote: > On Mon, Mar 16, 2026 at 08:41:40AM -0400, Haines Brown wrote: > > On Mon, Mar 16, 2026 at 11:15:46AM +0000, David wrote:
> > [ 52.592548] [drm:radeon_pci_probe [radeon]] *ERROR* radeon > > kernel modesetting for R600 or later requires firmware installed > > > > > Because I wonder if it says something like: > > > "radeon kernel modesetting ... requires firmware-amd-graphics" > > > > > So can you please show the output of: > > > > > > $ apt list --installed 'firmware-amd-*' > > > > This only returned: Listing... Done. > > > > I find that firmware-amd-graphics package is not installed. > > > > I installed it, but get: > > Setting up firmware-amd-graphics (20230210-5) ... > > Processing triggers for initramfs-tools (0.142+deb12u3) ... > > update-initramfs: Generating /boot/initrd.img-6.1.0-44-amd64 > > W: initramfs-tools configuration sets > > RESUME=UUID=cbdfa8a6-a127-4139-96dc-60ef57dd121a > > W: but no matching swap device is available. Not a big problem, W is just a warning. You could try to fix it by editing /etc/initramfs-tools/conf.d/resume so that the line: RESUME=UUID=cbdfa8a6-a127-4139-96dc-60ef57dd121a becomes two lines: # RESUME=UUID=cbdfa8a6-a127-4139-96dc-60ef57dd121a RESUME=none and then run: $ sudo update-initramfs -uk all [...] > > > And if firmware-amd-graphics package is not installed, can you try > > > installing it and see if that fixes your issue. > > > > I now install it. > > It solved the proben thanks to your suggestion. When I reboot I come up > with the resolution I want. Thanks for letting us know that your problem is solved. By the way, because your graphics card is quite old you might experience some applications that expect modern GPU features might not function correctly. For example if you experience firefox crashing, you can check my advice at [1]. [1] https://lists.debian.org/debian-user/2025/10/msg00148.html [1] message-id: CAMPXz=pxvzaw8_x_gozgb7vftujo3ps8zdsvvtgjut4gqfn...@mail.gmail.com
