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1. Turn off gnome-screensaver.
Open ``System / Preferences / Screensaver'' and uncheck both boxes.
2: Stop gnome-screensaver from launching at login.
Run the command:
gconftool-2 --type boolean -s \
/apps/gnome_settings_daemon/
screensaver/start_screensaver \
false
Or, just uninstall the "gnome-screensaver" package entirely.
3: Launch xscreensaver at login.
Open ``System / Preferences / Sessions / Startup Programs''. Click ``Add'' and type ``xscreensaver''.
4: Tell Preferences to use the xscreensaver configurator.
Edit /usr/share/applications/gnome-screensaver-preferences.desktop and change the Exec= line to say
Exec=xscreensaver-demo
5: Make ``System / Quit / Lock Screen'' use xscreensaver.
Run the command:
sudo ln -sf /usr/bin/xscreensaver-command \
/usr/bin/gnome-screensaver-command