<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body>
<p>
<div>
<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#c126">Comment # 126</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:philip@koenighofer.net" title="Philip Könighofer <philip@koenighofer.net>"> <span class="fn">Philip Könighofer</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=71267#c125">comment #125</a>)
<span class="quote">> (In reply to <a href="show_bug.cgi?id=71267#c115">comment #115</a>)
> > I tried applying the two patches which you posted on intel-gfx[1], ported to
> > 3.13.
> >
> > [1] <a href="http://article.gmane.org/gmane.comp.freedesktop.xorg.drivers.intel/33737">http://article.gmane.org/gmane.comp.freedesktop.xorg.drivers.intel/33737</a>
> >
> > Using a T540p and an Ultradock, connected to a Dell U2410 via a DisplayPort
> > cable --- and it worked! Not only were there no hangs, but in fact I could
> > enable and disable the external display. The "too many retries" did indeed
> > trigger:
>
> These patches did not work for me with my T440s. During bootup it hangs
> upon switch to FB. Once booted undocked, it hangs when docked and external
> monitor is enabled through xrandr.</span >
Try to update your dock to the new firmware. It should resolve this issue, at
least if you are using only a single external display!</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>