About This File
Audio output via "HDMI" and Displaj ports, on NVIDIA graphics cards.
In the "Sierra" and "High Sierra" systems.
(Older systems are all the more installed).
Installation via terminal (may be required several times).
Required - Reboot.
sudo cp -r -v ~/Desktop/HDMIAudio.kext /System/Library/Extensions/
sudo chown -R root:wheel /System/Library/Extensions/HDMIAudio.kext