I have Ubuntu 13.10 installed alongside Win8. When I try to shut down Ubuntu it either freezes with the purple "Ubuntu screen" (identical to the one at startup) or it freezes with the following message on a black screen:
Broadcast message from root@jokifi
(unknown) at hh:mm …
The system is going down for power off NOW!
speech-dispatcher disaled; edit /etc/default/speech-dispatcher
Restart however works fine.