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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm:intel_set_cpu_fifo_underrun_reporting] *ERROR* uncleared fifo underrun on pipe A"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102819">102819</a>
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<th>Summary</th>
<td>[drm:intel_set_cpu_fifo_underrun_reporting] *ERROR* uncleared fifo underrun on pipe A
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>XOrg git
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
</td>
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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>
</tr>
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<th>Reporter</th>
<td>rion4ik@gmail.com
</td>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=134291" name="attach_134291" title="kernel config">attachment 134291</a> <a href="attachment.cgi?id=134291&action=edit" title="kernel config">[details]</a></span>
kernel config
I see next strange messages in dmesg
[ 61.403120] [drm:intel_set_cpu_fifo_underrun_reporting] *ERROR* uncleared
fifo underrun on pipe A
[ 61.403127] [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe A
FIFO underrun
[ 61.403148] [drm:intel_set_pch_fifo_underrun_reporting] *ERROR* uncleared
pch fifo underrun on pch transcoder A
[ 61.403151] [drm:intel_pch_fifo_underrun_irq_handler] *ERROR* PCH transcoder
A FIFO underrun
Gentoo on Clevo P170EM with hybdrid graphics
$ sudo lspci | grep -i vga
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor
Graphics Controller (rev 09)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Wimbledon XT [Radeon HD 7970M]
Linux dizzynb 4.13.2-gentoo #1 SMP Sun Sep 17 13:47:20 +05 2017 x86_64 Intel(R)
Core(TM) i7-3610QM CPU @ 2.30GHz GenuineIntel GNU/Linux
x11-base/xorg-server-1.19.3
x11-drivers/xf86-video-ati-7.10.0
media-libs/mesa-17.2.0</pre>
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