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<body><span class="vcard"><a class="email" href="mailto:ville.syrjala@linux.intel.com" title="Ville Syrjala <ville.syrjala@linux.intel.com>"> <span class="fn">Ville Syrjala</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - FIFO underrun, visual glitches and instability with dual monitors"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109376">bug 109376</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>NEEDINFO
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - FIFO underrun, visual glitches and instability with dual monitors"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109376#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - FIFO underrun, visual glitches and instability with dual monitors"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109376">bug 109376</a>
from <span class="vcard"><a class="email" href="mailto:ville.syrjala@linux.intel.com" title="Ville Syrjala <ville.syrjala@linux.intel.com>"> <span class="fn">Ville Syrjala</span></a>
</span></b>
<pre>We seem to have fixed the original issue so I'm tempted to just close this bug.
However it might be interesting to know whether 4.19 and 4.20 are also
affected. 4.18 is a lost cause since it's no longer maintained, but we might
want to backport some of the fixes to 4.19 and 4.20. Can you test with
4.19/4.20?
In relation to <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [WHL] FIFO underruns on a hybrid machine but only while on "performance" (dGPU) mode"
href="show_bug.cgi?id=109248">bug 109248</a> Canonical identified commit ff43bc379e16 ("drm/i915:
Move ddb/wm programming into plane update/disable hooks on skl+") as fixing
their flickering screen problems. We might be after the same thing here.</pre>
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