Apr  5 18:07:28 dello lxdm-binary: pam_succeed_if(lxdm:auth): requirement "user ingroup nopasswdlogin" not met by user "stefano"
Apr  5 18:07:42 dello polkitd(authority=local): Registered Authentication Agent for session /org/freedesktop/ConsoleKit/Session1 (system bus name :1.19 [/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.utf8)
Apr  5 18:07:50 dello dbus-daemon: [system] Rejected send message, 2 matched rules; type="method_call", sender=":1.28" (uid=1000 pid=1733 comm="nautilus) interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply=0 destination=":1.7" (uid=0 pid=1563 comm="/usr/sbin/console-kit-daemon))
Apr  5 18:08:13 dello polkitd(authority=local): Unregistered Authentication Agent for session /org/freedesktop/ConsoleKit/Session1 (system bus name :1.19, object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.utf8)
Apr  5 18:08:37 dello lxdm-binary: pam_succeed_if(lxdm:auth): requirement "user ingroup nopasswdlogin" not met by user "stefano"
Apr  5 18:08:37 dello polkitd(authority=local): Registered Authentication Agent for session /org/freedesktop/ConsoleKit/Session2 (system bus name :1.42 [/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.utf8)
Apr  5 18:08:38 dello dbus-daemon: [system] Rejected send message, 2 matched rules; type="method_call", sender=":1.45" (uid=1000 pid=2067 comm="nautilus) interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply=0 destination=":1.7" (uid=0 pid=1563 comm="/usr/sbin/console-kit-daemon))