NAME 

xscreensaver - extensible screen saver framework, plus locking

SYNOPSIS 

xscreensaver [-display host:display.screen] [-verbose] [-no-capture-stderr] [-no-splash]

DESCRIPTION 

The xscreensaver program waits until the keyboard and mouse have been idle for a period, and then runs a graphics demo chosen at random. It turns off as soon as there is any mouse or keyboard activity.

This program can lock your terminal in order to prevent others from using it, though its default mode of operation is merely to display pretty pictures on your screen when it is not in use.

It also provides configuration and control of your monitor's power-saving features.

GETTING STARTED 

For the impatient, try this: 
xscreensaver &
xscreensaver-demo

The xscreensaver-demo(1) program pops up a dialog box that lets you configure the screen saver, and experiment with the various display modes.

Note: unlike xlock(1), xscreensaver has a client-server model: the xscreensaver program is a daemon that runs in the background; it is controlled by the foreground xscreensaver-demo(1) and xscreensaver-command(1) programs.