Comment 13 for bug 174712

The same problem to me in Jaunty
I have mythtv in a separate (secundary) screen. A Tv normally off.
Thanks for the info.
First i change a setting in the mythtv options to disable prompting on exit.
And then i create a launcher in the gnome panel, with a shutdown icon, that load a script in my home named "apagatemierda.sh".
The script says:

--
#!/bin/bash
#
# close mythtv and show shutdown dialog

killall mythfrontend.real | gnome-session-save --shutdown-dialog
--

voila!