Hello, all

I'm running Ubuntu 10.04.

I decided to play around and create a custom session, using Compiz as a standalone window manager, but not running Gnome or any other desktop enviroment. So far, it seems to work well while I'm using it. But I don't know how to log out and return to the GDM login screen. When I'm done, I've either powered down or rebooted the computer from the command line.

What's the command to end an xsession and return to the GDM login screen?

Thanks!