I'm running 13.10 as host, with a VirtualBox 4.2.16_Ubuntu running Windows 8.1 as guest. I had the virtual machine in full screen mode when Ubuntu locked due to inactivity.
I tried to wake the machine and discovered the standard unlock screen, where I could move the mouse pointer but could not type any characters into the password box.
I switched terminals, logged in, and shutdown the virtual machine programatically. However, I was still unable to type in the password box on the lock screen.
I ended up just rebooting the real (host) machine, which worked fine I guess :-/
Two questions:
- Any idea what happened here?
- Is there a way to resolve this without rebooting the whole computer?