https://bugs.freedesktop.org/show_bug.cgi?id=107153
--- Comment #2 from Patrik Kullman patrik.kullman@gmail.com --- Right before this in journalctl:
[ 268.322916] hades-media /usr/lib/gdm3/gdm-x-session[896]: (--) AMDGPU(0): HDMI max TMDS frequency 300000KHz [ 268.324908] hades-media /usr/lib/gdm3/gdm-x-session[896]: (II) AMDGPU(0): Allocate new frame buffer 4096x2160 [ 268.324976] hades-media /usr/lib/gdm3/gdm-x-session[896]: (II) AMDGPU(0): => pitch 16384 bytes