It may be related to bug #122549 but the fix suggested there with respect to unredirect fullscreen windows does not stop the problem with relation to switching users.
In fact if I switch to another user, login, and using ctrl-alt-F keys, switch to a text console and back to the first login, I've jammed it up.
A gdm restart from an ssh login "recovers" things, if thats the right work....
I get this problem with feisty and with gutsy.
It may be related to bug #122549 but the fix suggested there with respect to unredirect fullscreen windows does not stop the problem with relation to switching users.
In fact if I switch to another user, login, and using ctrl-alt-F keys, switch to a text console and back to the first login, I've jammed it up.
A gdm restart from an ssh login "recovers" things, if thats the right work....