Re-reading my previous post, I need to clarify. about 1) and 2): I tried to USB boot (normal) and it didn't work. I got many GUI hangs/crashes. After ~5-10 times I got fed up with it and tried a USB (safe) boot, which worked. Then I tried the USB (normal) boot again and it suddenly worked.
about 3): if the GUI works, it hangs quickly but never in the same interval (probably crashes in the background) and does not recover. I seem to remember that sometimes even switching to a VT didn't work. I was surprised that remote SSH login worked, but reboots had to mostly be 'hard' eventually (e.g. the reboot command didn't completely finish). When the GUI hangs, the mousecursor is static and nothing can be done. Alt-tabbing also did not work. But, I found a workaround! I installed the "5.18.0-051800-generic" kernel from https://wiki.ubuntu.com/Kernel/MainlineBuilds and used this modprobe file with options: # disable the older 'radeon' kernel module blacklist radeon # disable audio options amdgpu audio=0 # magic options for my TAHITI R9 280X options amdgpu si_support=1 options amdgpu cik_support=1 options amdgpu dpm=0 options amdgpu aspm=0 options amdgpu runpm=0 options amdgpu bapm=0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1975566 Title: Unknown bug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1975566/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
