[Navi10] Xorg.0.log msg "Failed to get FB for flip"
IMHO similar to #1825 (moved)
Xorg.0.log are flushed by something like this
[ 257.172] Failed to get FB for flip
[ 257.172] (WW) AMDGPU(0): Page flip failed: Resource temporarily unavailable
[ 257.172] (EE) AMDGPU(0): present flip failed
in every 0.007-5 sec.