Comment 3 for bug 1220865

I found this bug when searching for the reason that my desktop stops working after resuming from suspend or hibernation.

It's not a real freeze. I can see the desktop, I can move the mouse pointer, Gnome 3 even reacts when I move the mouse pointer to the top left corner (animation). But it doesn't react to keys or mouse clicks. It's possible to switch to a virtual console once (Ctrl-Alt-F1), but going back to the graphical desktop stops the computer working finally.

I don't even have the nvidia drivers installed, but nouveau. And it's the same with Unity.
Therefore I think this is a bigger bug.