I suspect "cannot control anything for few minutes" is bug 1861648.
If during those few minutes you tried changing VTs etc you might have got a delayed reaction and switched away from the working screen. Try hitting Ctrl+Alt+F1.
I suspect "cannot control anything for few minutes" is bug 1861648.
If during those few minutes you tried changing VTs etc you might have got a delayed reaction and switched away from the working screen. Try hitting Ctrl+Alt+F1.