Big Sur on HP EliteDesk 800 G4/G5 Mini - The Perfect MacMini8,1 Hackintosh - OpenCore

[lydahai]

Can't open your ioreg dump. You must use IORegistryExplorer 2.1 as discussed here.

EDIT: @lydahai I see that you did edit your DeviceProperties. Please compare your DeviceProperties for PciRoot(0x0)/Pci(0x2,0x0) to what I suggested here. Why are you spoofing a device-id and why are you using AAPL,ig-platform-id <07009B3E>?

Can you try to open it

 

[deeveedee]

@lydahai - I edited my previous post. see my comment about WhateverGreen.kext. This is why it's important for you to post your latest EFI with each help request.

@lydahai I reviewed your IORegistry - looks like it should, given that you have the wrong AAPL,ig-platform-id. Correct your AAPL,ig-platform-id, remove your spoofed graphics device-id and fix WhateverGreen.kext in your config.plist.

Let me know what happens after those changes.

 

[lydahai]

@lydahai - I edited my previous post. see my comment about WhateverGreen.kext. This is why it's important for you to post your latest EFI with each help request.

I tried to change the configuration file again, but the monitor had output and no image. It's not like the last one was not selected WhateverGreen.kext Drive, direct no output.

 

[deeveedee]

I tried to change the configuration file again, but the monitor had output and no image. It's not like the last one was not selected WhateverGreen.kext Drive, direct no output.

I reviewed the config.plist that you just posted. Please let me know when you've followed all of my recommendations. Got to go for now.

 

[lydahai]

I reviewed the config.plist that you just posted. Please let me know when you've followed all of my recommendations. Got to go for now.

yes
After the restart, the monitor still does not enter the desktop, but the backlight is on, not in standby mode.

 

[deeveedee]

yes，I'll check again

After you're certain that you've followed my recommendations (you are using the AAPL,ig-platform-id that I suggested and removed the spoofed device-id), if you're still having issues with black screen, then you may need to review Dortania's guide for boot flags. I don't need these boot flags with my RX580 (different PC), so I'm not familiar with them. For example, you might try without agdpmod=pikera and definitely without igfxonln=1 and igfxagdc=0. You may need to try with agdpmod=vit9696.

A few notes about the boot flags:

• I've only used igfxonln=1 and igfxagdc=0 with iGPU. I can see how these might cause problems with your dGpu, so remove them.
• I don't know enough about the difference between agdpmod=pikera and agdpmod=vit9696. You should test without using either of them and then with each individually (not together).

@lydahai - I had a minute to look again at your last posted config.plist. Why do you set ProcessorType to 4,105? Try leaving it set to 0 to allow OC to identify your ProcessorType.

 

[lydahai]

yes

After you're certain that you've followed my recommendations (you are using the AAPL,ig-platform-id that I suggested and removed the spoofed device-id), if you're still having issues with black screen, then you may need to review Dortania's guide for boot flags. I don't need these boot flags with my RX580 (different PC), so I'm not familiar with them. For example, you might try without agdpmod=pikera and definitely without igfxonln=1 and igfxagdc=0. You may need to try with agdpmod=vit9696.

A few notes about the boot flags:

• I've only used igfxonln=1 and igfxagdc=0 with iGPU. I can see how these might cause problems with your dGpu, so remove them.
• I don't know enough about the difference between agdpmod=pikera and agdpmod=vit9696. You should test without using either of them and then with each individually (not together).

After using your method, it is still the same as before. I have an idea. Do you need to define the output port of rx560 graphics card.
But with your EFI, switch to macmini, remove the display driver, and boot to the desktop normally.

 

[deeveedee]

After using your method, it is still the same as before. I have an idea. Do you need to define the output port of rx560 graphics card.
But with your EFI, switch to macmini, remove the display driver, and boot to the desktop normally.

Your system works fine with SMBIOS MacMini8,1? If that's the case, I think you've succeeded.

 

[lydahai]

Your system works fine with SMBIOS MacMini8,1? If that's the case, I think you've succeeded.

But there is still a problem with macmini. Although the graphics card can speed up normally, after waking up and entering the desktop, some software will enter the posture of feign death. Only by restarting the computer, I want to use the rx560 graphics card. The ideal model is imac19.1
Because the rx560 has only one display output interface, I don't know how to define its output interface.

 

[deeveedee]

But there is still a problem with macmini. Although the graphics card can speed up normally, after waking up and entering the desktop, some software will enter the posture of feign death. Only by restarting the computer, I want to use the rx560 graphics card. The ideal model is imac19.1
Because the rx560 has only one display output interface, I don't know how to define its output interface.

Ok - I'm willing to continue helping if you're willing to keep trying. Can you post your latest EFI for iMac19,1?