Ubuntu
linux package

  1. Bug #1550779
  2. Comment #104

Comment 104 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

Since I'm also facing this bug I just want to confirm that the error also occurs on the latest mainline Kernel (5.1) and also on the current drm-tip kernel version (5.1.0.0994 from https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/2019-05-05/)

I'm trying to use an additional monitor on my X380 Yoga using an USB-C Dock. During the boot process the error message appears:
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO
After the boot process the monitor is sometimes enabled, but only a couple of seconds.