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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [HD4600 MST] DisplayPort MST crash with Dell M3800 laptop + Dell UP2414Q monitor"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90430#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [HD4600 MST] DisplayPort MST crash with Dell M3800 laptop + Dell UP2414Q monitor"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90430">bug 90430</a>
from <span class="vcard"><a class="email" href="mailto:cshei@cs.indiana.edu" title="cshei@cs.indiana.edu">cshei@cs.indiana.edu</a>
</span></b>
<pre>The previous kernel log goes with the screenshot I just uploaded. Also, a
couple of the times when the monitor was showing a black screen, I saw this in
the kernel log (but hadn't booted with the drm.debug=0x1e option, so this is
all I got):
[ 4002.714910] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
uncleared fifo underrun on pipe B
[ 4002.714923] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun</pre>
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