This is interesting. I presume if you add modprobe.blacklist=radeon to the kernel commandline, your system is degraded, e.g. the resolution is lower? The installer probably would have a lower resolution, too, when booting it with modprobe.blacklist=radeon? Or maybe the radeon kernel module is not used at all?
Are you using current linux-libre or are you using an old kernel? On Sat, Apr 20, 2019 at 12:16:43PM +0200, Pierre Neidhardt wrote: > Maybe Florian's issue is with an older card that does not support > "ati" or "amdgpu". > lspci reports my card as Radeon R7 240/340. According to Wikipedia this GPU was released in 2013. Xorg attempted to load the radeon driver and not amdgpu. Regards, Florian
