thanks for all the info, I think i'm getting close to a solution... I remember now that after some kernel updates my network card doesn't come back from hibernation so i've put its drivers (via-rhine) on the modules file and it fixed it. maybe that is the problem, the network is not up when gdm starts.
I don't use neither NFS nor NIS and i'm using ubuntu edgy i386. no /var/crash about gdm. An I'm rebooting now to see what info I get from gdm with debug on. -- gdmgreeter Failed to connect to socket https://launchpad.net/bugs/62342 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
