@limebar @elsemusic are you trying to get the audio through the TV speakers? If so, you have to use HDMI ARC, which is a special cable, and you have to use the correct HDMI input on the TV. (Sorry if that's obvious!)
I have an HDMI ARC splitter + little DAC that splits the audio off from my computer's HDMI connection so that I can send it to some powered speakers and send the video on to the TV. That has been awesome!