Hm, works for me. Can you please open the guest session, a Terminal window, and copy&paste the output of
echo $GDMSESSION ls -l /etc/alternatives/x-session-manager
?
Hm, works for me. Can you please open the guest session, a Terminal window, and copy&paste the output of
echo $GDMSESSION es/x-session- manager
ls -l /etc/alternativ
?