grant@localhost ~ $ sudo /etc/init.d/xdm restart
Password:
 * Stopping xdm ...
/sbin/start-stop-daemon: stat /usr/bin/xdm: No such file or directory (No such file or directory)                                                         [ ok ]
 * Setting up xdm ...
start-stop-daemon: stat /usr/bin/xdm: No such file or directory (No such file or directory)
 * ERROR: could not start the Display Manager                             [ ok ]
grant@localhost ~ $