Spent some more hours on this problem. Found that some part of the gdm login process is using the /usr/bin/dbus-launch command, and when i use that command it works, but if I become the gdm user (using sudo -u gdm) I get permission denied.. The same error that I get in the log files. I can't reproduce this on my laptop using the same version of Ubuntu.
-- Black screen instead of (gdm) login screen after dist-upgrade. https://bugs.launchpad.net/bugs/675337 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp