I updated to the latest Sierra Public Beta 12.4 beta 1 and now I have sound through my RX 480. My RX 460 has had sound but not quite like this. It has a bug however as it sounds to be One Ocatve (give or take a few bars) low in the sound register.
Here is a quick video using the RX HDMI through LG TV, ad then switching USB sound card through a cheap speaker set....
HDMI Audio Through AMD XFX RX 480 8gb Reference Card.
Here is a quick video using the RX HDMI through LG TV, ad then switching USB sound card through a cheap speaker set....
HDMI Audio Through AMD XFX RX 480 8gb Reference Card.