It's not likely to be a gdm issue. It is either a Xorg, gnome-settings- daemon or libgnome-desktop issue (or possibly gnome-power-manager too).
Ted - do you have SSH access to the box from another machine? It would be useful so we can work out what Xorg *thinks* your display configuration is when you boot. -- Choice of DVI outlet affects ability to boot 9.10 https://bugs.launchpad.net/bugs/505310 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs