I'm still experiencing this bug as well.
HP nw9440 notebook, Nvidia Quadro FX 1500M, using nvidia driver v169.12,
up to date hardy.
It happens most frequently while I'm scrolling a web page in firefox using the
arrow keys, but has happened during a cube rotation as well. Screen is froze,
mouse pointer moves. I am able to alt-sysreq-r to get to a console where I find
compiz.real using a reasonable amount of resources (around 32m resident mem and
3% cpu). stracing the process all I see is it polling 'poll([{fd=11,
events=POLLIN|POLLPRI}], 1, 1000) = 0'. I killall -ILL compiz.real and metacity
takes over.
The one consistent thing I am able to note every time this happens, is at the
end of my Xorg.0.log:
(II) NVIDIA(0): Initialized GPU GART.
I noticed on the same 'SetClientVersion: 0 9' line on a couple of the
above commenters Xorg.0.log, too.
I'm suspicious of the driver, I think it's freaking out under certain
circumstances but I still can't pin down exactly what triggers it.
The attached Xorg.0.log is a session where the freeze occurred twice,
after killing compiz.real and metacity taking over, I reloaded compiz
using fusion-icon and it happened again shortly after.
** Attachment added: "Xorg.0.log"
http://launchpadlibrarian.net/14078623/Xorg.0.log
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compiz randomly freezes X
https://bugs.launchpad.net/bugs/176589
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