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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Problems with (tiled) MST display (Dell UP3214Q)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107845#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Problems with (tiled) MST display (Dell UP3214Q)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107845">bug 107845</a>
from <span class="vcard"><a class="email" href="mailto:pmenzel+bugs.freedesktop@molgen.mpg.de" title="Paul Menzel <pmenzel+bugs.freedesktop@molgen.mpg.de>"> <span class="fn">Paul Menzel</span></a>
</span></b>
<pre>(In reply to Stanislav Lisovskiy from <a href="show_bug.cgi?id=107845#c6">comment #6</a>)
<span class="quote">> Paul Menzel, does it help if you unplug and plug the display again, when you
> see those intel_dp_aux_xfer messages?</span >
With GDM turning on the screen didn’t bring it back up, and the message below
could be seen in the logs.
[Tue Sep 18 09:40:10 2018] [drm:intel_cpu_fifo_underrun_irq_handler [i915]]
*ERROR* CPU pipe B FIFO underrun
Unplugging and plugging the display again fixed the issue.</pre>
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