GUIDE How to Disable AMD/NVIDIA/Intel GPU Audio on macOS [Clover/OpenCore]

[EliteMacx86]

How to Disable AMD/NVIDIA/Intel GPU Audio on macOS [Clover/OpenCore]​

This guide covers disabling HDMI/DP/Type-C GPU Audio on macOS. By following this guide, you'll be able to disable the AMD/NVIDIA/Intel GPU Audio on macOS over DP/HDMI/Type-C.

Why disable GPU Audio?​

Usually, the audio over DP/HDMI/Type-C is a handy feature for monitors that has audio support or comes with built-in speakers. For monitors that has built-in speakers, one doesn't need a separate speakers if the quality is good and you don't work with music. However, certain GPU models tend to intermittently crash if an audio is passed via the GPU. Therefore, it's necessary to disable the GPU audio to stop these crashes. To disable the GPU Audio on macOS, follow the steps below:

Requirements​

Following are the requirements for disabling GPU Audio on macOS. Please ensure you meet the requirements before proceeding with this guide.

GPU	macOS Compatible GPU. See Graphics Compatibility for more information.
macOS	macOS High Sierra or Later (Pre-installed).
Bootloader	Clover or OpenCore. Please ensure to use the latest version to avoid issues.
Kexts	Vanilla Graphics kexts in S/L/E Lilu WhateverGreen
Tools	IOReg OCAT or any equivalent .plist editor

Available Methods​

Following are the methods available for disabling GPU Audio on macOS. All these methods have been described below. Choose one that fits accordingly, never all

Method #1: Device Properties​

Using Device Properties method, you can disable the GPU Audio. This is more easy method than the SSDT method and preferred for beginners.
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STEP 1: Obtain GPU Path
Before you disable the GPU audio, the first step is to obtain the GPU path. To obtain the GPU path, follow the guide linked below:

STEP 2: Add Required Properties
The next step is to add the required properties that will prevent the AppleGFXHDA.kext from attaching to the GPU's Audio. To add the required properties, follow the steps below:

1. Mount your ESP.
2. Depending on bootloader you use,

For Clover
1. Open config.plist from the EFI/Clover directory
2. Go to the Devices>Properties section.

For OpenCore
1. Open config.plist from the EFI/OC directory.
2. Go to the DeviceProperties section.

3. Add the following properties to the GPU path.

Devices	Key	Value	Type
GPU path	device-id	00000000	DATA
	subsystem-id	00000000	DATA
	subsystem-vendor-id	00000000	DATA

4. Save config.plist

STEP 3: Restart your system
After performing all the above steps, restart your system for the applied changes to take effect. It is recommended to reset NVRAM twice at least.

Verify GPU Audio​

The next step is to verify whether the GPU Audio is disabled or not. Follow the steps below to verify the GPU Audio to ensure its disabled as expected:

System Report

• Verify the Audio under System Report>Audio:

System Preferences

• Verify the Audio under System Preferences>Sound>Output:

IOReg

• Verify whether the AppleGFXHDA is not loading in IOReg: