Native 4K @ 60Hz with working audio.
Laptops often route HDMI through con2 or con3 . Use gfxutil to see which port is physically wired. hackintosh hdmi fix
Hackintool is essential for identifying which connector ( con0 , con1 , con2 ) corresponds to your physical HDMI port. Native 4K @ 60Hz with working audio
Add this to config.plist → DeviceProperties → Add → PciRoot(0x0)/Pci(0x2,0x0) : HDMI is a nightmare.
Use WhateverGreen + add boot arg: agdpmod=pikera
If you are still on High Sierra with an Nvidia GTX 1080/1070 using the Web Drivers, HDMI is a nightmare.