Video output to AMD Card


I just try to get my synchronised video, which is imported in my cubase 8.5 project on a TV screen. (Windows 10, 64bit)
On device setup I just see an “onscreen Windows” player.
I have a multi-head video card. (AMD Firepro) and would like to output the video to DP2 (displayport 2).

Do I have to install another Video player?