I'm using Ubuntu 13.10, and this problem occurs after updating from 13.04:
I'm starting ubuntu, the keyboard layout is set to german, what I need. But while working, it can change random to the englisch layout.
When this occurs, I must only type Str+Alt+F1 to switch to the console and then Str+Alt+F7 to switch back, and the tastatur works well as nothing has happened. What can be the problem?
(I have deactivate switching to other keyboard layouts with Super+Space)