I'm having problems restarting or turning of ubuntu 10.10 on a samsung r560. I had no problems with previous ubuntu versions.
When turning off, ubuntu stays forever in the purple screen with 4 dots. When restartig, I get
init: Disconnectded from system bus init: dbus main process (752) killed by TERM signal nm-dispatcher.action: Cought signal 15, shutting down... modem-manager: Cought signal 15, shutting down...
The laptop does not shut down after this.