I tried again to reproduce the error. This time the error seems to be slighlty different and more meaningful. Here it is (again from /var/log/messages): .... 2013-04-21T19:31:17.222982+02:00 linux-3xop dbus-daemon[568]: dbus[568]: [system] Rejected send message, 2 matched rules; type="method_return", sender=":1.0" (uid=0 pid=534 comm="/usr/lib/systemd/systemd-logind ") interface="(unset)" member="(unset)" error name="(unset)" requested_reply="0" destination=":1.48" (uid=1001 pid=1093 comm="/usr/bin/gnome-session ") 2013-04-21T19:31:17.222999+02:00 linux-3xop dbus[568]: [system] Rejected send message, 2 matched rules; type="method_return", sender=":1.0" (uid=0 pid=534 comm="/usr/lib/systemd/systemd-logind ") interface="(unset)" member="(unset)" error name="(unset)" requested_reply="0" destination=":1.48" (uid=1001 pid=1093 comm="/usr/bin/gnome-session ") 2013-04-21T19:31:17.263684+02:00 linux-3xop dbus-daemon[568]: dbus[568]: [system] Rejected send message, 1 matched rules; type="method_call", sender=":1.6" (uid=0 pid=632 comm="/usr/sbin/gdm ") interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply="0" destination=":1.95" (uid=0 pid=2043 comm="/usr/lib/gdm/gdm-simple-slave --display-id /org/gn") 2013-04-21T19:31:17.263935+02:00 linux-3xop dbus[568]: [system] Rejected send message, 1 matched rules; type="method_call", sender=":1.6" (uid=0 pid=632 comm="/usr/sbin/gdm ") interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply="0" destination=":1.95" (uid=0 pid=2043 comm="/usr/lib/gdm/gdm-simple-slave --display-id /org/gn") 2013-04-21T19:31:17.742845+02:00 linux-3xop xdm[569]: Failed to give slave programs access to the display. Trying to proceed. 2013-04-21T19:31:17.776668+02:00 linux-3xop gdm-launch-environment]: pam_unix(gdm-launch-environment:session): session opened for user gdm by (uid=0) 2013-04-21T19:31:17.777754+02:00 linux-3xop systemd-logind[534]: New session 4 of user gdm. 2013-04-21T19:31:17.788569+02:00 linux-3xop systemd-logind[534]: Linked /tmp/.X11-unix/X1 to /run/user/489/X11-display. 2013-04-21T19:31:18.064490+02:00 linux-3xop gnome-session[2062]: Entering running state 2013-04-21T19:31:18.091559+02:00 linux-3xop rtkit-daemon[1020]: Successfully made thread 2093 of process 2093 (/usr/bin/pulseaudio) owned by 'gdm' high priority at nice level -11. 2013-04-21T19:31:18.091577+02:00 linux-3xop rtkit-daemon[1020]: Supervising 5 threads of 2 processes of 2 users. 2013-04-21T19:31:18.331517+02:00 linux-3xop rtkit-daemon[1020]: Successfully made thread 2105 of process 2105 (/usr/bin/pulseaudio) owned by 'gdm' high priority at nice level -11. 2013-04-21T19:31:18.331533+02:00 linux-3xop rtkit-daemon[1020]: Supervising 9 threads of 3 processes of 2 users. 2013-04-21T19:31:18.332104+02:00 linux-3xop pulseaudio[2105]: [pulseaudio] pid.c: Daemon already running. 2013-04-21T19:31:18.396178+02:00 linux-3xop kernel: [ 317.259962] traps: gnome-shell[1264] trap int3 ip:7f208af9308f sp:7fff51e501a0 error:0 2013-04-21T19:31:18.414595+02:00 linux-3xop dbus-daemon[568]: dbus[568]: [system] Rejected send message, 2 matched rules; type="method_return", sender=":1.0" (uid=0 pid=534 comm="/usr/lib/systemd/systemd-logind ") interface="(unset)" member="(unset)" error name="(unset)" requested_reply="0" destination=":1.48" (uid=1001 pid=1093 comm="/usr/bin/gnome-session ") 2013-04-21T19:31:18.414614+02:00 linux-3xop dbus[568]: [system] Rejected send message, 2 matched rules; type="method_return", sender=":1.0" (uid=0 pid=534 comm="/usr/lib/systemd/systemd-logind ") interface="(unset)" member="(unset)" error name="(unset)" requested_reply="0" destination=":1.48" (uid=1001 pid=1093 comm="/usr/bin/gnome-session ") 2013-04-21T19:31:18.416517+02:00 linux-3xop polkitd[629]: Unregistered Authentication Agent for unix-session:2 (system bus name :1.73, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus) 2013-04-21T19:31:18.420581+02:00 linux-3xop gnome-session[1093]: WARNING: Application 'gnome-shell.desktop' killed by signal 5 2013-04-21T19:31:18.719545+02:00 linux-3xop polkitd[629]: Registered Authentication Agent for unix-session:4 (system bus name :1.103 [gnome-shell --mode=gdm], object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) 2013-04-21T19:31:18.984581+02:00 linux-3xop polkitd[629]: Registered Authentication Agent for unix-session:2 (system bus name :1.122 [/usr/bin/gnome-shell], object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) 2013-04-21T19:31:20.856180+02:00 linux-3xop kernel: [ 319.713669] traps: gnome-shell[2119] trap int3 ip:7fb5f83b208f sp:7fff3bc3d1d0 error:0 2013-04-21T19:31:20.862822+02:00 linux-3xop polkitd[629]: Unregistered Authentication Agent for unix-session:2 (system bus name :1.122, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus) 2013-04-21T19:31:20.863059+02:00 linux-3xop gnome-session[1093]: WARNING: Application 'gnome-shell.desktop' killed by signal 5 2013-04-21T19:31:20.863679+02:00 linux-3xop gnome-session[1093]: WARNING: App 'gnome-shell.desktop' respawning too quickly 2013-04-21T19:31:20.864780+02:00 linux-3xop gnome-session[1093]: Unrecoverable failure in required component gnome-shell.desktop If someone can shed some light on this issue, I would be grateful. It seems that dbus rejects the message to switch users? Valerio -- To unsubscribe, e-mail: opensuse-gnome+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-gnome+owner@opensuse.org