Fix Intel iGPU Acceleration + Output on 500 Series Motherboards.

It is a well-known fact that macOS does not support iGPU functionality on 500-series motherboards out of the box. This typically results in one of three scenarios: hardware acceleration without video output, video output without hardware acceleration, or neither working properly.

Fortunately, there is a simple solution. We can embed the monitor’s EDID directly into the DeviceProperties configuration. This fix supports multiple monitors as well, but you’ll need to use Windows to extract the EDID and adjust your .plist configuration

Index

1. Grab Monitor's EDID
2. Inject EDID into config.plist
3. VRAM Patching
4. Fixing HDMI wake on sleep

1. Grab your Monitor's EDID

Extended Display Identification Data (EDID) allows your monitor to communicate its capabilities to your computer.

There are many ways to grab your Monitor's EDID, Including:

1. Monitor Asset Manager
2. Windows Regedit

1 - Using Monitor Asset Manager

Download from EnTech Taiwan

Launch Monitor Asset Manager and scroll down to the bottom in the Asset information
You will want the raw data section from the Asset information panel, not the Raw data panel

Copy the hex information and paste it into a notepad

Clean up those commas and spaces
Click on Find -> Replace, or Ctrl+H.
Find: ,
Replace:

End Results:

Remove the whitespaces and ensure the text is in one line (even if it breaks due to text wrap)

2 - Using Windows Regedit

An Alternative way to grab your EDID without downloading a software.

Open windows regedit by searching it, or using Windows Run (Ctrl+R) and type regedit
Go to this path Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\DISPLAY\SAM0D1A

You wil find more than one folder inside this path. Expand all of them like this:

We only want the folders that has Device Parameters

Right click on each Device Parameter folder and export it to your desktop.

Open the export file(s) with notepad

Only copy the hex data and paste it onto a new notepad file.

Remove the commas by using the Find & Replace function in notepad
Find: ,
Replace:

Similarly, remove the backslashes

Remove the whitespaces and ensure the hex data is in one line, even if it breaks due to word wrap.

That's it, this is your monitor's EDID. If the other folders have the exact same EDID, just use one of them.
Otherwise, use each EDID to inject the respective monitor into config.plist

2. Injecting EDID into config.plist

Open your config.plist file from Opencore using ProperTree

Head to DeviceProperties -> Add -> PciRoot(0x0)/Pci(0x2,0x0)

Add only those fields:

Key	Data	Explanation
AAPL,ig-platform-id	07009B3E	Identifies the iGPU (UHD 630, Kaby Lake) platform for macOS.
AAPL00,override-no-connect	<EDID Data>	Injects EDID for the first monitor to enable display detection.
AAPL01,override-no-connect	<EDID Data>	Injects EDID for the second monitor, if applicable.
AAPL02,override-no-connect	<EDID Data>	Injects EDID for the third monitor, if applicable.
device-id	9B3E0000	Device ID for the Intel UHD 630 iGPU, used for identification.
framebuffer-con0-enable	01000000	Enables the first display output (e.g., HDMI or DisplayPort).
framebuffer-con0-type	00080000	Specifies the connection type for the first output (HDMI).
framebuffer-con1-enable	01000000	Enables the second display output.
framebuffer-con1-type	00080000	Specifies the connection type for the second output (HDMI).
framebuffer-con2-enable	01000000	Enables the third display output.
framebuffer-con2-type	00080000	Specifies the connection type for the third output (HDMI).
framebuffer-patch-enable	01000000	Enables framebuffer patches to adjust graphics settings.

We will inject our EDID code into AAPL00,override-no-connect, AAPL01,override-no-connect, and AAPL03,override-no-connect.
Each AAPL entry corresponds to a different monitor. If you have multiple monitors, every monitor has its own unique EDID, so make sure to inject the correct EDID into the corresponding AAPL entry for each monitor.
Important: Every monitor has its own unique EDID. Even if two monitors are the same model, do not use the EDID from another source. Always obtain your own EDID.

Your AAPL values should look like this:

Key	Data
AAPL00,override-no-connect	00FFFFFFFFFFFF004C2D1A0D52515A5A071C010380301B782A5295A556549D250E5054BFEF80714F81C0810081809500A9C0B3000101023A801871382D40582C4500DD0C1100001E000000FD00324B1E5111000A202020202020000000FC00533232463335300A2020202020000000FF004834544B3230303735380A20200108
AAPL01,override-no-connect	00FFFFFFFFFFFF004C2D1A0D52515A5A071C010380301B782A5295A556549D250E5054BFEF80714F81C0810081809500A9C0B3000101023A801871382D40582C4500DD0C1100001E000000FD00324B1E5111000A202020202020000000FC00533232463335300A2020202020000000FF004834544B3230303735380A20200108
AAPL02,override-no-connect	00FFFFFFFFFFFF004C2D1A0D52515A5A071C010380301B782A5295A556549D250E5054BFEF80714F81C0810081809500A9C0B3000101023A801871382D40582C4500DD0C1100001E000000FD00324B1E5111000A202020202020000000FC00533232463335300A2020202020000000FF004834544B3230303735380A20200108

3. VRAM Patching

Test your config first if it gives an output. Remember, RecoveryOS does not use Graphics acceleration
Boot into macOS and check your VRAM size, if it's 7MB, then you need to patch your graphics using Whatevergreen's guide

4. Fixing HDMI wake on sleep

Likewise, this is related to GPU patching, there are many causes to this issue.
A quick fix is using igfxonln=1 in the NVRAM boot arguments.

Wrapping up

If you change or upgrade your monitor, you will have to grab it's EDID all again.

Proof

Injecting 3 single-EDIDs.

B560M Gaming Motherboard with only iGPU on macOS Sequoia 15.2.

Acknowledgments

Video tutorial by 乌龙蜜桃来一打
ProperTree by corpnewt
Opencore by acidanthera
Whatevergreen guide by acidanthera