Ubuntu
linux package

  1. Bug #1550779
  2. Comment #82

Comment 82 for bug 1550779

Revision history for this message
Sergei Mikhailov (pandamonium) wrote : Re: [i915]] *ERROR* CPU pipe A FIFO underrun - Xorg glitches

@Tomasz Przybysz
i915.enable_rc6=0 as a workaround doesn't seem to work.

I have similar symptoms as Angelo Lisco. I leave laptop on overnight and sometimes in the morning it got frozen with same underrun error message in logs.

enable_rc6 is definitely set to 0:
$ cat /sys/class/drm/card0/power/rc6_enable
0

And the bug is still there with kernel 4.15.10 =( just a heads up