"11:45:51 AM kernel: [drm:atom_execute_table_locked [radeon]] *ERROR* atombios stuck executing E534 (len 455, WS 0, PS 4) @ 0xE575 11:45:51 AM kernel: [drm:atom_op_jump [radeon]] *ERROR* atombios stuck in loop for more than 5secs aborting" https://forums.gentoo.org/viewtopic-t-1000512-start-0.html