AMD R7 240 No Graphic Acceleration in Big Sur

*Using Opencore*

Hi there, hope you're doing awesome!

Dortania's Guide, Whategreen's FAQ, and Other Forums are saying that AMD 7 240 is compatible upto macOS Monterey but I'm struggling to make graphic acceleration work in my Intel i5 8400 hackintosh machine via dGPU AMD R7 240.

I spoofed the R7 240 as R7 250X to make it compatible with macOS Big Sur, and installed the macOS. But somehow I'm unable to enable the graphic acceleration of my dGPU.

I don't want to use my iGPU UHD 630 because my motherboard's HDMI port has been damaged and I'm not getting display out from VGA.


I saw people are getting success in getting graphic acceleration work from AMD R7 240 dGPU.

I have tried many fake IDs (suggested by some forums) but still no result.

My specs as follows:
CPU: Intel i5 8400 (CFL)
dGPU: AMD R7 240
MB: ASUS PRIME B360M-D
Ram: 16 GB

I'm not able to buy a new-cheap graphic card that's why to make it work.
Please help me, thanks in advance.

Post a copy of your IOReg, so we can see if you are using the correct ACPI address/path for your R7 240 DGPU.

You can obtain a copy of IORegistryExplorer from this guide.


Can you try booting your system with RadeonSensor.kext and SMCRadeonGPU.kext disabled in the config.plist or removed completely from your OC setup.

Edhawk said:

Post a copy of your IOReg, so we can see if you are using the correct ACPI address/path for your R7 240 DGPU.

You can obtain a copy of IORegistryExplorer from this guide.

[Guide] How to Make a Copy of IOReg

IORegistryExplorer aka IOReg Apple Developer Tool Xcode How to Make a Copy of IOReg (Note 1) 1. IORegistryExplorer/File/Save a Copy As…. (no extension required) 2. Open file to verify (Note 2) 3. Attach to post (Note 3) Where To Get IOReg 1. Download Interim, link below Installation 1, Open...

www.tonymacx86.com

Can you try booting your system with RadeonSensor.kext and SMCRadeonGPU.kext disabled in the config.plist or removed completely from your OC setup.

Click to expand...

I attached the required files in my thread, please have a look. I also disabled the mentioned kexts to make it work but it's not working.

The reason the SSDT-GPU-Spoof.aml table is not working is because it contains the wrong ACPI address.

You are using an SSDT with the following ACPI path/address/settings.

incorrect ACPI path highlighted

Your IOReg shows your dGPU has the following ACPI path.



The GFX0 section of the ACPI path is missing from the SSDT.

Also the whole idea of including a model name in the SSDT is so you can use the correct name for the graphics card, but use a Fake device ID for the card.

The revised SSDT-GPU-R7-240-SPOOF.aml attached below uses the full ACPI path (\_SB_.PCI0.PEG0.PEGP.GFX0)

Full ACPI path.

Replace the SSDT currently in your /EFI/OC/ACPI folder and update the ACPI entry for the SSDT in your config.plist. See if this gets the R7-240 working correctly.

Don’t post images showing your system Serial Number. Your post will be deleted if you do.

Post a copy of the Hackintool > PCIe tab, with the window fully expanded to show the IOReg and ACPI names for the devices in your system.

Edhawk said:

Don’t post images showing your system Serial Number. Your post will be deleted if you do.

Post a copy of the Hackintool > PCIe tab, with the window fully expanded to show the IOReg and ACPI names for the devices in your system.

Click to expand...

My apologie, I will keep it my mind.