Currently when I leave my desk I lock my screen and that turns off the monitor and then when I return and move the mouse I need to enter my password.

The problem is I never get to see my screensaver when I return.

How do I have the security of locking the screen but instead of turning off the monitor is should immediately go into screensaver mode. Then when I move the mouse it must exit screensaver and request password.

Similar to Windows XP