Mesa 25.0.0 Release Notes / 2025-02-19

[ 5067.696] (II) Applying OutputClass “AMDgpu” to /dev/dri/card1

Make sure that you actually have permission to that /dev/dri/card1 device. This may be arranged by udev or “video” group membership.

Regarding AMD vs Nvidia, unless you need CUDA you probably made the right choice. This sounds like a config issue and you’d probably be dealing with the same thing with Nvidia too.