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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Video cutout on Kaby Lake U processors."
href="https://bugs.freedesktop.org/show_bug.cgi?id=107543#c32">Comment # 32</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Video cutout on Kaby Lake U processors."
href="https://bugs.freedesktop.org/show_bug.cgi?id=107543">bug 107543</a>
from <span class="vcard"><a class="email" href="mailto:phil.smith@adder.com" title="phil.smith@adder.com">phil.smith@adder.com</a>
</span></b>
<pre><a href="https://cgit.freedesktop.org/drm-intel/">https://cgit.freedesktop.org/drm-intel/</a>
commit 448626103dad54ec5d06722e955586b5d557625d
Author: Joonas Lahtinen <<a href="mailto:joonas.lahtinen@linux.intel.com">joonas.lahtinen@linux.intel.com</a>>
Date: Fri Sep 21 12:26:37 2018 +0300
drm/i915: Update DRIVER_DATE to 20180921
Signed-off-by: Joonas Lahtinen <<a href="mailto:joonas.lahtinen@linux.intel.com">joonas.lahtinen@linux.intel.com</a>>
We have built and installed a kernel using the above source. We are running a
.config which is pretty much the same as Debian Stretch's default .config.
On top of this is Debian Stretch running Wayland. We started a few terminals
and a (high CPU load) software video decode.
After this was running for ~20 minutes we turned the monitor on and off a few
times and observed a CPU pipe A FIFO underrun. The screen turned black and
stayed that way for a few minutes before a further burst of CPU pipe A FIFO
underrun saw the screen recover.</pre>
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