Unlike DisplayPort, which usually works out of the box on most GPUs, HDMI is a proprietary standard with strict licensing. Apple uses HDMI in very specific ways. If you are using an AMD GPU (Navi, RDNA), Intel Integrated Graphics (UHD 630, Iris), or even an older Nvidia card (High Sierra/Mojave), you will likely need to manually patch your system.
Create a custom SSDT to set PP_PhmSoftPowerPlayTable . hackintosh hdmi fix
Welcome to the most infamous post-installation headache: . Unlike DisplayPort, which usually works out of the
But then you plug in your external monitor via HDMI. Nothing. Or maybe the video works, but the audio is missing. Perhaps the screen wakes up to a pink tint or refuses to go past 1080p. Intel Integrated Graphics (UHD 630