[Bug 107543] Video cutout on Kaby Lake U processors.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107543

--- Comment #34 from phil.smith at adder.com ---
We have seen one more occurrence of the black screen, and like the last time it
was seen on the drm-intel kernel, it recovered after a short while. This is
different to running the default Debian Stretch kernel where it does not
recover.

Now it recovers it is slightly harder to observe the error. :)

[ 1400.616629] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] ERROR CPU pipe
A FIFO underrun
[ 1422.401223] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] ERROR CPU pipe
A FIFO underrun
[ 1444.219104] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] ERROR CPU pipe
A FIFO underrun
[ 1466.037044] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] ERROR CPU pipe
A FIFO underrun
[ 1487.871609] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] ERROR CPU pipe
A FIFO underrun
[ 1509.689495] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] ERROR CPU pipe
A FIFO underrun
[ 1510.214766] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] ERROR CPU pipe
A FIFO underrun
[ 1515.438784] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] ERROR CPU pipe
A FIFO underrun

It is possibly a Wayland bug? We have only observed the black screen using
Wayland/Weston with windows on screen.

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20180927/b888a719/attachment.html>