Comment 39 for bug 370541

sorry if what i will say won't make a lot of sense but here is how i solved the problem in my pc:

1st i noticed that in gdm.conf file both AutomaticLoginEnable and TimedLoginEnable were true although i had disabled timed login using startup manager.

and the second thing i did was to put a higher value at GdmXserverTimeout. I set it 20 and automatic login works again for me