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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#c8">Comment # 8</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 Paul Menzel from <a href="show_bug.cgi?id=107845#c7">comment #7</a>)
<span class="quote">> (In reply to Stanislav Lisovskiy from <a href="show_bug.cgi?id=107845#c6">comment #6</a>)
> > Paul Menzel, does it help if you unplug and plug the display again, when you
> > see those intel_dp_aux_xfer messages?
>
> 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.</span >
… of the black screen, but the two panels were not used on one monitor but as
two.</pre>
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