I have found and solved the problem. I am using a multiseat setup and the new authentication framework used in gnome, policykit+consolekit, don't play well with old multiseat configurations.
Following the hints given in http://linux.derkeiler.com/Mailing-Lists/Fedora/2007-09/msg03482.html I was able to solve the problem by deleting the "-novtswitch -sharevts" options from the calls to /usr/bin/X that are in my /etc/gdm/gdm.conf-custom. (in this case you need to explicitly define the terminal you want to use for the multiple sessions in the endo of the calls to /usr/bin/X). -- Hal does not mount usb devices (pen drives) https://bugs.launchpad.net/bugs/218494 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