AMD GPUs are cursed for me
Each time I try AMD graphics, something is fucked for me. Back with fglrx, fglrx just sucked, so I used Nvidia. Then I had an AMD right around when they finally had opensource drivers, but it was still buggy as hell. So I went with Nvidia again (first a GTX 790, then a GTX 1060). In the meantime I had a new work notebook where I also went with an AMD APU, and had driver crashes for a long time when I was in video calls and it had to decode multiple streams. That thankfully stabilized with Linux 6.4.
Since sooo many people in the community swear by AMD, I thought "dammit, let's try it again for my new desktop" and got an 7800rx ... and I have to reboot ~5 times until I finally make it to a running xserver or wayland session. Apparently I am hit by this problem (at least I hope so). But that doesn't even read nice ... the fix seems to be to revert another fix for powermanagement. So I either have a mostly non-booting card or suboptimal power management.
I start to regret having chosen AMD .... again :-/ I seem to be cursed.
Sorry to hear that. For what it's worth, I've had no problems with integrated AMD graphics, so maybe it's a PCIe issue?
Hmm, interesting idea. I need to investigate that. The dmesg output is full of amdgpu irq errors, but of course that could also happen with an issue on the board.
I would rule out a generic hardware issue, since 1) I get graphics during boot up until it needs to do a modeswitch (I guess) and b) it works fine so far on Windows.
I did have a similar issue after the first boot on Windows as well and assumed so far that the modeswitch after the initial driver install caused the problem. But Windows likely also installed chipset drivers at that time, so PCIe could be a possibility. Then again... I know that Windows reloads graphics drivers on-the-fly... but chipset drivers? Probably not. Which would speak against that theory.
I have no clue how Linux initiates the communication with a PCIe board, and whether the amdgpu driver would take care of that. But hardware excluded, some misconfiguration on the driver's part could be present. Good luck!