Are you sure XAUTHORIZATION is needed? this environment does not exist. I think it is enough to set:
Defaults !lecture,tty_tickets,!fqdn,env_keep+="DISPLAY HOME" -- Doesn't launch and gives gtk "can't open display" https://launchpad.net/bugs/30291 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
