Lock Workstation after X minutes of inactivity

Lock Workstation after X minutes of inactivity

Looking to figure out how to lock a workstation after X minutes of Inactivity, and remaining locked until the user unlocks the screen with appropriate identification and authentication...


been looking at the Display (user) configuration, which is where I think I need to be.  If the user doesnt have a screen saver enabled, what happens when you choose Retain Existing Screensaver, with the wait time,  then on resume show logon screen, or is there another way to do this?