[Bug 440614] [NEW] deadlock in intel driver after screensaver runs

[J. Bruce Fields]

Public bug reported:

Binary package hint: xserver-xorg-video-intel

If I leave the machine alone for long enough, I'll return to a blank
(black) screen and unresponsive mouse and keyboard.  Disabling the
screen saver seems to work around the problem.  I can still ssh in after
the problem occurs, and see hung-task warnings in dmesg (see attached
dmesg-fragment).  As you can see, the tasks involved are i915/0, Xorg,
and lorenz (the screensaver).

I'm running karmic, xserver-xorg-video-intel version 2:2.8.1-1ubuntu2,
kernel 2.6.31-11, lspci reports video controller as "Intel Corporation
Mobile 4 Series Chipset Integrated Graphics Controller (rev 7)."

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New

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deadlock in intel driver after screensaver runs
https://bugs.launchpad.net/bugs/440614
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