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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW] *ERROR* CPU pipe A|B|C FIFO underrun - Regression - Bisected"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102675">102675</a>
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</tr>
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<th>Summary</th>
<td>[BDW] *ERROR* CPU pipe A|B|C FIFO underrun - Regression - Bisected
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>DRI git
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/Intel
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>marta.lofstedt@intel.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>After patchset
<a href="https://patchwork.freedesktop.org/series/29538/">https://patchwork.freedesktop.org/series/29538/</a>
I am getting a lot of FIFO underruns on my BDW NUCi5. This can start during
boot up, but if not it is 100% reproducible with
igt@kms_cursor_crc@cursor-256x256-random.
Also, this appear to be reproduced on the snb-shards from CI_DRM_3061, when
this patch-set was merged. For example igt@kms_cursor_crc@cursor-256x256-random
and igt@kms_cursor_crc@cursor-256x256-onscreen, stop flip-flopping and started
to always dmesg-warn on FIFO underrun- I.e. <a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][SNB] *ERROR* CPU pipe B FIFO underrun"
href="show_bug.cgi?id=102373">BUG 102373</a> is at least partially
duplicate to this issue.</pre>
</div>
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