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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [SNB bisected] *ERROR* uncleared fifo underrun on pipe A"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95736#c32">Comment # 32</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [SNB bisected] *ERROR* uncleared fifo underrun on pipe A"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95736">bug 95736</a>
from <span class="vcard"><a class="email" href="mailto:flyser42@gmx.de" title="Fabian Henze <flyser42@gmx.de>"> <span class="fn">Fabian Henze</span></a>
</span></b>
<pre>(In reply to François Guerraz from <a href="show_bug.cgi?id=95736#c31">comment #31</a>)
<span class="quote">> It was reported that some fifo underrund problems can be caused by enabling
> CONFIG_INTEL_IOMMU_DEFAULT_ON=y (see
> <a href="https://bugs.archlinux.org/task/55629#comment161154">https://bugs.archlinux.org/task/55629#comment161154</a>).
> I notice that Fabian's configuration has this flag set...
> Could that really be the problem?</span >
Setting intel_iommu=igfx_off indeed fixed it.</pre>
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