I use a laptop connected via HDMI to a TV. By default when I hook it up it goes into duplication mode -- that is to say, I see the same image on both screens. What I'd like to do is set it on projection only, but I can't get it to work. I use F4 to go into the interface and click on projection only and it doesn't do anything. The other 3 options DO work.

I've Googled the shit out of this but can't find the same problem. People seem to have trouble getting the screen to turn on again, but I can't even turn it off in the first place.

Any thoughts?

(HP laptop Windows 7 x64)

 

Have you tried right clicking on the desktop and going to Screen Resolution. Then setting it to 2nd display only?

 

You wizard you. I had tried doing something with that, but apparently I hadn't fiddled enough; there's other stuff there that ended up doing the trick.

Thanks a lot! Problem solved.

 

Protip: Win+P offers a quick choice between various display settings for multiple displays.