I'm a long time AMD user both my GPU and CPU. I have a powerful enough PSU and a b550m-plus mobo.
I'm looking to do gaming, light AI work, computer programming, running Docker server services.
I have a Radeon 6900xt, but it doesn't work well with Linux anymore. amdgpu fails to load, and I can only boot by adding nomodeset to my boot entry.
With ArchInstall I even tried reformatting with xfs, ext4, btrfs, without encryption, with and without LVM, selecting both ATI OS drivers for all GPUs, and drivers for AMD gpus, with systemd-boot and grub.
Even Fedora on USB only boots with nomodeset.
Windows seems to boot fine.
I assume it may be a problem with system reading the drivers from the GPU.
I have onboard HDMI for graphics, but I've never got it working.
tbh, my 6900XT was too powerful anyways. I do game in 4K with my 55" TV on the highest settings, but it seems I was still barely using the GPUs full potential.
Funny enough, I seem to have had more problems with high end GPUs in the past than low end GPUs.
Both Mesa and Amdgpu-Pro fail
I don't know, but one possibility to consider is that running amdgpu-pro (or its non-pro counterpart) might've done something that stops mesa from working if you didn't completely undo everything it did.
The problem starter with Mesa.. Amdgpupro was one of the last thins I tried..