[Bug 105870] 4.14.15: drm:intel_pipe_update_end *ERROR* Atomic update failure on pipe B

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105870

--- Comment #8 from Jiri Slaby <jirislaby at gmail.com> ---
Created attachment 138650
  --> https://bugs.freedesktop.org/attachment.cgi?id=138650&action=edit
dmesg from 4.16

I see this too with 4.16:
# dmesg|grep intel_pipe_update_end
> [  800.581084] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=48505 end=48506) time 157 us, min 1073, max 1079, scanline start 1072, end 1082
> [18528.728284] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=50206 end=50207) time 112 us, min 1073, max 1079, scanline start 1072, end 1080
> [19427.308053] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=270 end=271) time 153 us, min 1073, max 1079, scanline start 1070, end 1080
> [21861.846603] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=59654 end=59655) time 179 us, min 1073, max 1079, scanline start 1071, end 1083
> [27259.388485] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=383506 end=383507) time 124 us, min 1073, max 1079, scanline start 1072, end 1080
> [30286.743515] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=565147 end=565148) time 179 us, min 1073, max 1079, scanline start 1068, end 1080

I have an external LCD connected by DisplayPort.

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