I've been upgrading my eee laptop from Fedora 17 to 18. After a reboot the system shows up the boot message[  OK  ] Started GNOME Display Manager.and does not go on any further.The system is alive, I can logon via ssh.Any suggestions how to fix or debug this issue any further?Thank youChris[xxx@eee X11]$  lspci |grep VGA00:02.0 VGA compatible controller: Intel Corporation Atom Processor D4xx/D5xx/N4xx/
Fedora: System hangs after upgrade to FC18 (started gdm)
fedora;upgrade;gdm
Well, in my case the start of the polkit service failed.A reinstall of this service made my system work:yum reinstall polkitFound it on http://ekuric.wordpress.com/2012/11/10/upgrade-to-fedora-18-aka-spherical-cow/#comment-135