Running 2 days with kernel from comment #64, no hangups, no graphical bug :)
$ uname -a Linux amo-ThinkPad-Edge-E330 3.5.0-27-generic #47~lp1140716 SMP Wed Apr 3 00:11:06 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Running 2 days with kernel from comment #64, no hangups, no graphical bug :)
$ uname -a Edge-E330 3.5.0-27-generic #47~lp1140716 SMP Wed Apr 3 00:11:06 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Linux amo-ThinkPad-