I was having problems with my wifi connection on my Dell XPS 13 with Ubuntu 16.04 and asked a question here about it. During the diagnoses I came across the following error found in /var/log/syslog:
Jan 17 09:49:56 roald-XPS-13-9360 kernel: [ 6206.032565] [drm:intel_pipe_update_end [i915_bpo]] *ERROR* Atomic update failure on pipe A (start=198476 end=198477) time 162 us, min 894, max 899, scanline start 892, end 901
I've tried to google it, but I did not find a solution. Any ideas?
