Thank you bpranoto, but I finally solved with a faster solution using epoptes: I put a launcher on desktop referring to:
/usr/share/epoptes-client/endsession --shutdown thanks to alkisg for suggestion -- You received this bug notification because you are a member of Edubuntu Bugsquad, which is subscribed to ltsp in Ubuntu. https://bugs.launchpad.net/bugs/491940 Title: Patch for LTSP clients to properly reboot/shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/491940/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~edubuntu-bugs Post to : edubuntu-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~edubuntu-bugs More help : https://help.launchpad.net/ListHelp