When you say your system freezes, do you mean that it is a hard hang
(not accessible via the network or even pingable), or just the display
subsystem is static?
There have been a number of kernel fixes since 3.5 that are relevant for
the pageflip-vs-modeset races that are similar to what you describe. Can
you please retest with, say, raring?
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1114370
Title:
External Monitor Problems: System Freezes when plugging, unplugging,
or turning off LG 55LE5400 TV
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