This bug affects me too on a Fujitsu Amilo Pi1505. I managed to unfreeze the system by restarting bdus daemon.
- I switched to terminal with Ctrl-Alt-F1
- I logged in and executed: sudo /etc/init.d/dbus restart
- Switched back to X server with Alt-F7 and all was ok
This procedure doesn't, luckly, involve logging out.
This bug affects me too on a Fujitsu Amilo Pi1505. I managed to unfreeze the system by restarting bdus daemon.
- I switched to terminal with Ctrl-Alt-F1
- I logged in and executed: sudo /etc/init.d/dbus restart
- Switched back to X server with Alt-F7 and all was ok
This procedure doesn't, luckly, involve logging out.