<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body>
<p>
<div>
<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Screen is frozen on second connection of DP MST dock"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107546#c48">Comment # 48</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Screen is frozen on second connection of DP MST dock"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107546">bug 107546</a>
from <span class="vcard"><a class="email" href="mailto:shaun@tigera.io" title="Shaun <shaun@tigera.io>"> <span class="fn">Shaun</span></a>
</span></b>
<pre>I see the same problem (screen freezes apart from mouse pointer) with a Dell
Precision 5530 and the Dell TB-16 dock on Ubuntu 18.10. That issue seems to be
resolved by running upstream kernel v4.20. I had previously tried v4.19 but
that still showed the issue.
Even with v4.20 I still see
[drm:intel_mst_pre_enable_dp [i915]] *ERROR* failed to allocate vcpi
when plugging in the dock but the external screen works (on the displayport
anyway, I'm not sure about the HDMI port).</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
<li>You are the QA Contact for the bug.</li>
</ul>
</body>
</html>