*** This bug is a duplicate of bug 966744 ***
https://bugs.launchpad.net/bugs/966744
I can confirm this on the same system "Thinkpad T61, kernel is i386, and
intel grafic". I see it since an update from Ubuntu 12.04 to 12.10. I
used 12.04 with tuxonice kernel (from tuxonice ppa) and did not
encounter this issue (though sleep/hibernate was never completely
stabel). With 12.04 hibernate stopped working with tuxonice. With
standard i386 kernel hibernate works only if I do "sudo swapoff -a; sudo
swapon -a" immediately before. I use Ubuntu with a pretty different
configuration running kde. This should allow to exclude many error
sources including Compiz. Also I do not use Firefox. Probably it is
worth trying an older kernel.
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https://bugs.launchpad.net/bugs/995013
Title:
Xorg freeze after lid closed/opened (screen turned off/on) several
times
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