Audio over DisplayPort: older AMD driver support?
Currently using an R9 Fury with macOS 10.14.2 Mojave inside a Mantiz Venus connected to a 15" tMBP, which I set up using purge-wrangler.sh. Unfortunately, I haven't been able to get audio over DisplayPort to work. I can see the PCI-e audio device in System Profiler, but it says there's no driver installed, and it doesn't show up in Audio MIDI or System Preferences. **Is there some kext I'm missing to get audio working on older AMD cards?** Something from the Hackintosh community maybe? Am I just SOL?
@jmy1000 You can try the instructions from Hackintosh community. https://www.insanelymac.com/forum/topic/324635-applehda-hdmi-audio/
The requirements for getting audio over eGPU might be slightly different. Investigating existing support might help (Ex. AppleGFXHDA).