I recognise there is a few people asking about this problem but no apparent solutions so I'll give it a go.
New PC, everything came installed, I have connected my TV to my AMD RX 580 through a HDMI cable and have visual only. I've tried plugging speakers and headphones in via audio jack but nothing appears in audio in.
In my drivers I have AMD high definition audio device (AMD High Definition Audio Bus) which I believe may be for my integrated graphics (Radeon vega 11) if so, nothing for my RX 580. I have disabled the integrated graphics in the BIOS to see if this helped but no luck. I have also tried uninstalling this when I update my drivers and uninstall and restarting the computer.
I have updated drivers (20.4.2), rolled back drivers, installed drivers as old as December 2019 (19.12.3). In the AMD software app details it always lists AMD audio driver version as "not available".
My PC specifications:
Windows 10 64 bit 1909
AMG Ryzen 3 3200g
Radeon Vega integrated graphics
AMD RX580 8gb phantom gaming card
TV - 37LG3000 connected via HDMI
Any help would be greatly appreciated