Comment 28 for bug 1154006

I'm unable to ssh to my machine because it's desktop computer and when I use it I do not have physical access to any other machine (I will be able to verify it next week, though).

But... This is the same issue: screen+keyboard freezes, yet e.g. skype works so if I'm connected and speak with someone, I still hear him, can speak, etc.... Just keyboard+screen is hung.

So this is a similar issue - but pretty much the same ;)

Also, please check your /var/log/kern.log*

As for me: I'm using kubuntu (Xorg), no compiz; nvidia proprietary drivers.