I'm trying to hook up my laptop to my HDTV to be able to get films from my laptop and watch them on a secondary TV screen (i.e. duplicate the laptop screen to the TV).
At first I drove myself crazy trying to get any display from the laptop onto the TV as I have an older laptop with only a VGA port (no HDMI) but now that I've found the correct resolution it is only displaying a second screensaver picture (i.e.. an extended picture) that only shows my mouse when I go off my laptop screen.