Shutdown / Reboot hangs indefinitely Bug on amdgpu
The bug is related to the bug report here: https://bugzilla.kernel.org/show_bug.cgi?id=207331
Shutdown and reboot are broken with Kernel 5.6.5. The commit at fault is also in Kernel 5.5.18 and 5.4.33. The fix is posted here: https://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-fixes-5.7&id=b2a7e9735ab2864330be9d00d7f38c961c28de5d
I have already applied the patch that is also attached here and made a custom build, the issue is solved with that.