https://bugs.freedesktop.org/show_bug.cgi?id=105251
--- Comment #8 from dxxf@volny.cz --- For me its hang immediately at boot (as soon as Xorg loads). Only way I was able to successfully boot the machine is setting: "NoAccel" "True" in Xorg.conf.d/10-amdgpu.conf. In some cases there is nothing in dmesg or Xorg.0.log machine just hangs with "cursor" on the screen.