Comment 7 for bug 817612

Affects me as well, after installing on Natty with ppa.
My remarks:
- the keyboard suddenly stops working
- pressing a key for approx. 1 second brings up the key (and subsequently more characters since the key is pressed)
- left ctrl doesn't work with this "press key"-trick, but right ctrl does
- gnome-shell --replace doesn't help
- switching to the console via ctrl-alt-f1 shows that the keyboard is working find outside of gnome-shell
- logging out and in again returns the keyboard control until the next time this bug occurs..