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if [ `pidof xscreensaver` ]; then
        su $user -c "(xscreensaver-command -throttle)"
                if [ x$LOCK_SCREEN = xtrue ]; then
                su $user -c "(xscreensaver-command -lock)"
        fi
elif [ `pidof dcopserver` ]; then
        dcop kdesktop KScreensaverIface lock
fi

xset dpms force off
if [ x$RADEON_LIGHT = xtrue ]; then
    [ -x /usr/sbin/radeontool ] && radeontool light off
fi