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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - sna: (Haswell) X-server freezes when enabling DP at docking station"
href="https://bugs.freedesktop.org/show_bug.cgi?id=71267#c49">Comment # 49</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - sna: (Haswell) X-server freezes when enabling DP at docking station"
href="https://bugs.freedesktop.org/show_bug.cgi?id=71267">bug 71267</a>
from <span class="vcard"><a class="email" href="mailto:ollie@ocharles.org.uk" title="Oliver Charles <ollie@ocharles.org.uk>"> <span class="fn">Oliver Charles</span></a>
</span></b>
<pre>I have a ThinkPad T440p with an Ultra dock and I can also confirm this
behaviour. However, I have managed to successfully get the screen to work
occasionally, but I can't quite determine the steps to get it to successfully
configure. Like others, `xrandr` causes the laptop to freeze and undocking it
resolves it.</pre>
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