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).
I have found and solved the problem.
I am using a multiseat setup and the new authentication framework used in gnome, consolekit, don't play well with old multiseat configurations.
policykit+
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 gdm.conf- custom.
from the calls to /usr/bin/X that are in my /etc/gdm/
(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).