Comment # 23 on bug 1188954 from Felix Miata

Both 15.4 & 15.3 using TDM suffer this with their latest kernels 24.21 & 59.93
on comment 10 host g5eas with chip-ID: 10de:06e4 & kernel module nouveau. SDDM
in current TW has this problem not.

I wonder if this is aggravated on this host because the 18ca:0020 XGI IGP
cannot be disabled, and doesn't seem to be by the presence of the ancient PCI
GPU. I don't recognize existence of any module for it among
kernel/drivers/gpu/drm.

Comment #0 host asa88's motherboard died, so I moved its APU to host ara88 in
the process of confirming the death. Checking ara88's status re this is yet
todo....