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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [HSW] uncleared fifo underrun on pipe A and CPU pipe A FIFO underrun error at boot time"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102340">102340</a>
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<th>Summary</th>
<td>[HSW] uncleared fifo underrun on pipe A and CPU pipe A FIFO underrun error at boot time
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
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<th>OS</th>
<td>Linux (All)
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<th>Status</th>
<td>NEW
</td>
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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
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>burhansylhet@gmail.com
</td>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=133646" name="attach_133646" title="4.12.8-2-ARCH dmesg with drm.debug=0xe">attachment 133646</a> <a href="attachment.cgi?id=133646&action=edit" title="4.12.8-2-ARCH dmesg with drm.debug=0xe">[details]</a></span>
4.12.8-2-ARCH dmesg with drm.debug=0xe
After the upgrade to 4.12 I get following while booting
[drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo
underrun on pipe A
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO
underrun
Laptop: HP 15 notebook PC. Kernel 4.11, 4.10, 4.9 work fine without errors.
uname -a:
Linux Extreme 4.12.8-2-ARCH #1 SMP PREEMPT Fri Aug 18 14:08:02 UTC 2017 x86_64
GNU/Linux</pre>
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