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<body><span class="vcard"><a class="email" href="mailto:hanno@hboeck.de" title="Hanno Boeck <hanno@hboeck.de>"> <span class="fn">Hanno Boeck</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - Flashing black screen ([drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94605">bug 94605</a>
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<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Severity</td>
<td>normal
</td>
<td>blocker
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Flashing black screen ([drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94605#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Flashing black screen ([drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94605">bug 94605</a>
from <span class="vcard"><a class="email" href="mailto:hanno@hboeck.de" title="Hanno Boeck <hanno@hboeck.de>"> <span class="fn">Hanno Boeck</span></a>
</span></b>
<pre>I think I am seeing the same bug. Here's a video of the penomena:
<a href="https://www.youtube.com/watch?v=VYxRvFsS-nY">https://www.youtube.com/watch?v=VYxRvFsS-nY</a>
I've reported it at bugzilla.kernel.org (
<a href="https://bugzilla.kernel.org/show_bug.cgi?id=116571">https://bugzilla.kernel.org/show_bug.cgi?id=116571</a> ), but got told it needs to
be reported here.
Some further info: This must've been introduced between 4.4 and 4.5. I wanted
to bisect it, but it's not easy as I don't have a reliable way to reproduce the
bug.
The system is a Thinkpad X1 Carbon 2014 edition (20A7), the GPU is listed as
"Haswell-ULT Integrated Graphics Controller (rev 0b)" by lspci.</pre>
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