[Bug 30384] patch: add a --silent option to gnome-session-save

[Timo Aaltonen]

Public bug report changed:
https://launchpad.net/malone/bugs/30384

Comment:
Gnome-screensaver has support for a "logout" button that is displayed on
the lock-dialog after a preset time (logout_delay), like XLock had.

It is useful for public workstations for example in classrooms where
users are allowed to lock the session for a short time if they need to
go to the bathroom etc. but still allowing other users (and admins!) to
logout a locked session after the time has expired. Opening another
session doesn't work, because the previous one is left hanging in the
background.

If there really is a way to close the session nicely without applying
the patch, I'd like to know ;) The man page isn't that helpful. (the gui
is always presented, whether you have --gui option or not?)