I don't understand what you're trying to do. You cannot run gnome-session from an already running Gnome session - that will just not work!
Do you get this behaviour on a new session, just logging in normally from GDM?
I don't understand what you're trying to do. You cannot run gnome-session from an already running Gnome session - that will just not work!
Do you get this behaviour on a new session, just logging in normally from GDM?