Quad Split Screen despite working iGPU

[Matin]

I have an HP EliteBook 1050 G1 with UHD 630 and i7-8750H. I'm trying to install macOS Sequoia on it using OpenCore. I managed to disable Graphics Acceleration using -igfvesa and install it successfully.



After that, I tried fixing the iGPU, and whatever I tried, various args, options under DeviceProperties, the screen would either go black, or freeze in verbose logs (caps lock works, not panic).



So I realized that injecting EDID has helped many hackintoshers fix their display problem, so I downloaded Linux Mint MATE (nice OS btw), and dumped EDID from that. Didn't work. I dumped all of my monitor info in Mint, and "crafted" my EDID from scratch.
It worked, it showed something, and it showed this quad-split disaster.



Now whatever I do, removing unnecessary options, changing ig platform IDs, injecting different EDIDs, enabling CSM, it's either freezing in boot verbose logs (right before graphics initialization) or, what you can see in the image.



... and, interestingly, when I boot to my Windows on this laptop, the screen seems to be slightly flickering and brightness is jumping a bit at the top of the screen, in dark colors, until I restart a few times. I guess now my problem is something more serious than a faulty EDID, and I'm worried whether it's damaging my Built-in laptop display.



At the end, it feels terrible to give up here, and your help can make a difference in the result of this project, so thanks for it!

 

[EliteMacx86]

... and, interestingly, when I boot to my Windows on this laptop, the screen seems to be slightly flickering and brightness is jumping a bit at the top of the screen, in dark colors, until I restart a few times. I guess now my problem is something more serious than a faulty EDID, and I'm worried whether it's damaging my Built-in laptop display.

It could be likely possible that you booted off the OC to Windows which has the modded EDID. If not, is there a possibility that the Laptop had a screen replacement or was used/repaired/refurbished? Moreover, did it have the problem like this before on Windows?

Post the EFI and a copy of IOReg.

 

[Matin]

Here's the EDID (from Linux Mint) and OC folder, made by me of course. a
The display issue in Windows fixes after some minutes of working with it, it's not a hardware problem I guess but I'm worried about incorrect macOS settings damaging my display.

 

[EliteMacx86]

Here's the EDID (from Linux Mint) and OC folder, made by me of course. a
The display issue in Windows fixes after some minutes of working with it, it's not a hardware problem I guess but I'm worried about incorrect macOS settings damaging my display.

You should use 3E9B0000 as ig-platform id. Also, 8750-H device ID is supported so no need to specifiy the device-id. What's the DVMT settings in the BIOS?

Also, no EDID injection seems to be present. Plus, use MacBookPro15,2 SMBIOS.

 

[Matin]

Thanks for your response! There's no DVMT option in HP BIOS, but video memory is set to max, i.e., 512MB

3E9B0000

Should be hex-swapped, right?

no EDID injection seems to be present

I updated the config.plist with your proposed changes. Still no luck.

Update: I tried a few other random EDIDs, and they made the split into 6 parts instead of 4, Just in case that it helps

 

[Matin]

Update: Interestingly, whatever EDID I choose, whether dumped from my PC via Linux (which is supposed to be more accurate than Windows dumps) or found on the internet, generates this exact same result (except for sometimes where it's splited into six panels). TBH, I'm now suspecting that EDID is being injected in another place, likely in the OS itself. Otherwise, the problem is something else. Will enabling my Nvidia GTX 1080 and using OCLP help (though I don't want it if apps don't work, cause of metal problems)?

 

[EliteMacx86]

Should be hex-swapped, right?

Right

Update: I tried a few other random EDIDs, and they made the split into 6 parts instead of 4, Just in case that it helps

You should not use EDID of another monitor/screen.Instead modify your screen EDID, if needed.

Remove EDID and see if there's a display now.

 

[EliteMacx86]

Update: Interestingly, whatever EDID I choose, whether dumped from my PC via Linux (which is supposed to be more accurate than Windows dumps) or found on the internet, generates this exact same result (except for sometimes where it's splited into six panels). TBH, I'm now suspecting that EDID is being injected in another place, likely in the OS itself. Otherwise, the problem is something else. Will enabling my Nvidia GTX 1080 and using OCLP help (though I don't want it if apps don't work, cause of metal problems)?

Unless the IGPU can be disabled from BIOS (rare), the Laptop has optimus configuration which is not supported. Although, you can give it a go but you can just have the external display from those ports.