tv sound

I've set up my Surface Pro 3 so that it connects to my TV via the display port and while the Video plays back perfectly fine, the audio does not - it only plays back through the Surface. Specifically this set up is: display port to hdmi converter and hdmi into the TV. The playback device once...

Has anyone else noticed that there's no audio coming from the display mini-port after upgrading to Windows 10? I have 2 different TV sets and hooked up my SP3 to both. The TV is actually recognized with no problem and in the Sound settings the TV is selected and showing as a playback device...