I think I've discovered an underlying cause of these hangs - compiz
taking a server grab and not flushing its command buffers - and have
pointed DX at the fix.
To confirm this hypothesis, next time you see this freeze could you
attach gdb to the *X* process (with “sudo gdb Xorg $(pgrep X)”) and give
me the result of “print grabState”?
** Changed in: compiz (Ubuntu Natty)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/740126
Title:
compiz hangs randomly several times per day
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