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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [ILK/SNB/IVB/HSW/BDW]igt/testdisplay causes *ERROR* Pipe A FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=74102#c16">Comment # 16</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [ILK/SNB/IVB/HSW/BDW]igt/testdisplay causes *ERROR* Pipe A FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=74102">bug 74102</a>
from <span class="vcard"><a class="email" href="mailto:yex.tian@intel.com" title="ye.tian <yex.tian@intel.com>"> <span class="fn">ye.tian</span></a>
</span></b>
<pre>Tested on BDW-H with drm-intel-testing-2015-03-27 kernel.
show the error info:
[ 2.536999] [drm:gen8_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
[ 28.170068] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR*
uncleared pch fifo underrun on pch transcoder A
[ 32.493699] [drm:gen8_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Reproduce steps:
----------------------
1,Connected the DP and VGA monitor
2,unplug and plug the VGA</pre>
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