Not sure if the custom.conf message is just a warning, or it if it is causing it not to start. It looks like this bug 500377 . I'll try the work around suggested of running gdmsetup and see if this message goes away.
-- gdm fails to start sitting on plymouth boot https://bugs.launchpad.net/bugs/577477 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
