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<body><span class="vcard"><a class="email" href="mailto:cshei@cs.indiana.edu" title="cshei@cs.indiana.edu">cshei@cs.indiana.edu</a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW - [HD4600 MST] DisplayPort MST crash with Dell M3800 laptop + Dell UP2414Q monitor"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90430">bug 90430</a>
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<th>What</th>
<th>Removed</th>
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<td style="text-align:right;">Status</td>
<td>NEEDINFO
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<td>NEW
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [HD4600 MST] DisplayPort MST crash with Dell M3800 laptop + Dell UP2414Q monitor"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90430#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [HD4600 MST] DisplayPort MST crash with Dell M3800 laptop + Dell UP2414Q monitor"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90430">bug 90430</a>
from <span class="vcard"><a class="email" href="mailto:cshei@cs.indiana.edu" title="cshei@cs.indiana.edu">cshei@cs.indiana.edu</a>
</span></b>
<pre>Progress!! 4.6.0-rc5 kind of worked, so I also tried drm-intel-nightly.
Results with drm-intel-nightly:
* Completely hangs during boot if monitor is plugged in (see attached
screenshot). The hang occurs before any system logging begins, so I don't see
anything useful in the system log.
* If the monitor is plugged in while X is running, it doesn't get the correct
resolution right away. After playing with GNOME's display settings a bit, I
was able to get monitor working at 4K @ 60 Hz! It doesn't seem to be super
stable though -- sometimes the video gets corrupted instead of looking right
(see other attached screenshot).
Is there anything else I can do or try to help debug this? Thanks!</pre>
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