I'm also seeing this quite frequently on Dell Precision 5520 running Ubuntu 17.10 with Wayland:
[85710.937972] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=15608 end=15609) time 761 us, min 1073, max 1079, scanline start 1035, end 1086
[87385.139517] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=115949 end=115950) time 14743 us, min 1073, max 1079, scanline start 421, end 292
When it happens, screen very often freezes for a bit.
I'm also seeing this quite frequently on Dell Precision 5520 running Ubuntu 17.10 with Wayland:
[85710.937972] [drm:intel_ pipe_update_ end [i915]] *ERROR* Atomic update failure on pipe A (start=15608 end=15609) time 761 us, min 1073, max 1079, scanline start 1035, end 1086 pipe_update_ end [i915]] *ERROR* Atomic update failure on pipe A (start=115949 end=115950) time 14743 us, min 1073, max 1079, scanline start 421, end 292
[87385.139517] [drm:intel_
When it happens, screen very often freezes for a bit.