SP3 - No audio when connecting to TV

[mche]

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 plugged in still works for the Surface Pro 3 itself, but when I try and select the TV audio's device, my Surface Pro's video lags tremendously and the audio fails to ever work.

With this same set up, I've plugged this into a Macbook Pro and the audio and video works fine so I don't believe the issue is with the TV or the cabling, but specifically with the Surface Pro 3.

Does anyone have any experience or insight with regards to this?

 

[BubbaUK]

Not much use, but as a data point I use a direct display port to HDMI cable, which works fine with my SP3 and any number of hotel room TVs. I have noticed that sometimes I need the SP3 booted & logged in and the TV turned on when I plug the cable in for the video to register, but not had any trouble with sound.

Are you using any particular media player? Both VLC and Netflix work fine.

 

[Argus Tuft]

Do you have the right codecs? I use the full K-Lite codec set (and VLC as a back-up) and my videos play and sound perfect on the TV (via display port > HDMI cable) or projector (same set-up).