Ubuntu
linux package

  1. Bug #1550779
  2. Comment #75

Comment 75 for bug 1550779

Revision history for this message
hamid (alias-neo-one) wrote : Re: [i915]] *ERROR* CPU pipe A FIFO underrun - Xorg glitches

Same issue here, DELL XPS 15 9560, I noticed the error because my Gnome Lock screen clock "stops" at the point when I locked my screen.

Ubuntu 16.04, 4.13.0-26-generic

Looking at journalctl, the last message before the clock stopped is "Jan 15 10:21:05 hamide-XPS kernel: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe C FIFO underrun"