Tutorial: How to get HDMI audio on nVidia G218 (10.10.3) In this post, I will inform you on to enable HDMI audio on the nVidia GeForce 210 1GB GDDR3 graphics card. Audio is fully working and sounds 'normal'. My build Intel Core i3-530 @ 2.93Ghz (Clarkdale Intel HD Graphics does not work with OS X) Intel Desktop Board DH55TC, very compatible with OS X 4GB DDR3 RAM @ 1333Mhz MSI GeForce N210 Nvidia Graphics Card (£18.99 from Amazon) Tutorial Download VoodooHDA 2.8.7 from their Google Code website, (do not install; link) Place the VoodooHDA.kext in a memorable location Open up your memorable location, (in my case; my desktop) and right click your kext and click Show Package Contents navigate to contents and drag Info.plist out on to your desktop Now open up your Info.plist with your favorite editing software and find 'IOPCIClassMatch'; replace this with 'IOPCIPrimaryMatch', the value of this should be '0xDEVCEIDVENDORID'. However, the device ID should be the ID for your graphics cards sound chip. You can find this by using DPCIManager, which has been attached; in the tools.zip archive. 5. Now you need to generate your EFI GFX String with can be done with OSX86Toolswhich has been attached; in the tools.zip archive. 6. Once you have generated your GFX string, add a value called device-properties under your IOPCIPrimaryMatch and paste the string in, (or modify the attached info.plist). 7.Add another value, AllowMSI and make that Boolean false. 8. Save the info.plist and move it back into the Contents folder of your kext; ensure that you replace the file not rename it. 9. Install this kext using Kext Utility and reboot 10. Choose the second HDMI audio option within the Sound panel 11.if all goes well, you should now have working HDMI Audio, without any DSDT modifications! If you wish to use my version kext/plist below, feel free Any questions just ask and I will try to answer.