On Tue, Mar 13, 2007 at 04:43:34PM +0000, Peter Alcibiades wrote:
OK, then what you have to do is log on as root and do gdmsetup from a terminal. This should bring up all the gdm configuration screens. And I think that in one of these there is a controller for what options are offered at login time. You can't do su -, because then it refuses to open the display for reasons the rest of the group will immediately understand and know how to deal with....but I don't! Its something to do with specifying the screen used at launch.
I ran gdmsetup very early on, on Fedora 6 at least it doesn't seem to have any options for changing the window manager.
Actually if you run gdmsetup as a user it asks for the root password before coming up, there's no issue with X authentication or anything like that.