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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [HSW ] test S3 with 3pipe cause *ERROR*"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90046#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [HSW ] test S3 with 3pipe cause *ERROR*"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90046">bug 90046</a>
from <span class="vcard"><a class="email" href="mailto:bin.a.xu@intel.com" title="xubin <bin.a.xu@intel.com>"> <span class="fn">xubin</span></a>
</span></b>
<pre>Test it with latest drm-intel-nightly kernel
(commit 4b2be843fab906467eed62265f5066418c73649c),the issue still exist.
Output:
[ 54.724540] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR*
uncleared pch fifo underrun on pch transcoder A
[ 54.724549] [drm:cpt_irq_handler [i915]] *ERROR* PCH transcoder A FIFO
underrun
[ 54.738062] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
uncleared fifo underrun on pipe B
[ 54.738071] [drm:ironlake_irq_handler [i915]] *ERROR* CPU pipe B FIFO
underrun</pre>
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