Ubuntu
linux package

  1. Bug #1550779
  2. Comment #106

Comment 106 for bug 1550779

Revision history for this message
Florian Hennig (tuxflo) wrote : Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun

If someone else has those issues with a USB-C Dock (Thunderbolt 3) I got rid of the issue by using the latest mainline Kernel:
 5.1.0-050100-generic #201905052130 SMP Mon May 6 01:32:59 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
and the following Kernel config settings (/etc/default/grub):

GRUB_CMDLINE_LINUX_DEFAULT=".... quiet splash intel_idle.max_cstate=4 i915.enable_psr=0 i915.enable_dc=0 i915.enable_fbc=0 i915.enable_dp_mst=0"