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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [NVD9] Unable to start X on ThinkPad T420s laptop"
href="https://bugs.freedesktop.org/show_bug.cgi?id=56615#c17">Comment # 17</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [NVD9] Unable to start X on ThinkPad T420s laptop"
href="https://bugs.freedesktop.org/show_bug.cgi?id=56615">bug 56615</a>
from <span class="vcard"><a class="email" href="mailto:mark.cave-ayland@ilande.co.uk" title="Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>"> <span class="fn">Mark Cave-Ayland</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=56615#c16">comment #16</a>)
<span class="quote">> I wouldn't worry about that backtrace, it's related to something else I
> think.</span >
Okay, no worries :)
<span class="quote">> Would you mind switching to nouveau/master? You can just add it as a remote
> to your current git setup, no need to check out a whole new tree.</span >
Sure. My kernel git repository is exclusively set-up for trying to get DP
working so it's a clone of git://anongit.freedesktop.org/nouveau/linux-2.6.
I'll do a pull on master branch and build that for my next set of tests.
<span class="quote">> Could you post a full dmesg from a nouveau/master kernel booted with
> "nouveau.debug=PDISP=debug"? The dmesg that you've already posted seems to
> suggest everything is broken (e.g. PDISP is disabled which is a very bad
> sign).</span >
Alright. I'm not back in the office until next week now, but as soon as I get a
chance I'll try it and upload the dmesg output here.
<span class="quote">> Also, to be clear, if you boot with DP plugged in, and start X, then you get
> a hang, right? Does the whole system hang, or just the display? Can you ssh
> in? If you can ssh in, what happens when you try to turn stuff off/on with
> xrandr? (Obviously with DISPLAY=:0 so as to connect to the laptop's X.)</span >
AFAICT it's a full system hang - I haven't tried remote network access, but the
keyboard is totally unresponsive, even to CTRL-ALT-F1 and friends until the
driver times out after about 2-3mins. I'll give the remote access a try next
week though.
Many thanks,
Mark.</pre>
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