gnome-screensaver is a screen saver and locker that aims to have
simple, sane, secure defaults and be well integrated with the desktop.
gnome-screensaver GNOME Screensaver is the default screen saver and locker in a GNOME desktop. It is designed with simplicity and security in mind. gnome-screensaver-command gnome-screensaver-command is a tool for controlling an already running instance of gnome-screensaver.