[Bug 81488] [BDW-U Bisected]System hang while running "xrandr --output eDP1 --off"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81488

Matt Roper <matthew.d.roper at intel.com> changed:

           What    |Removed                     |Added
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                 CC|                            |matthew.d.roper at intel.com

--- Comment #2 from Matt Roper <matthew.d.roper at intel.com> ---
I'm surprised that this commit would trigger a regression since it was intended
to have little/no functional change (aside from one potential NULL dereference
which was plugged by this patch).

You indicate that the bug appears on only a single device...does it happen
every single time you run the xrandr command on that platform, or is the
problem only seen occasionally?  I'll have to look more closely when I have
some free time tomorrow, but the fact that you don't see the same problem on
other similar devices makes me wonder whether I've introduced a race condition
somewhere that you only get (un)lucky enough to hit on that one device.

I don't suppose there's any way to get a serial console on this device so you
can see the kernel dump?

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