EMU7989

I tried to inject EDID, but it didn't work

So the built-in screen doesn't work because of the FB port? How can I fix it? My built-in screen displays as "Unknown Display".

I found that HDMI can be used to connect to the external display. The graphics card information is correctly displayed as "HD 520 2048MB", and the brightness of the built-in display can be adjusted. The built-in display will light up, but there is no display I compared the IOReg files under monterey and ventura, and found that the system under ventura failed to recognize "Apple Display". Is this the reason for the black screen (I used an external display, KBL graphics settings)

Thank you very much for your suggestion, but I will not be able to access the system after doing so, and restart directly

I tried to use OCLP, but the system failed to start after applying the patch (using MBP14,1, SKL graphics settings)

I can access the desktop in VESA mode, but the screen will still be black after closing. This is my startup video. Can OCLP solve this problem when using MBP13,1 and SKL graphics settings? Is it useful to inject EDID into the built-in display? Video.zip

Thank you for your suggestion. The screen is still black. The text can be seen in verbose mode and the screen will go black (Apple progress bar will not be displayed) My screen resolution is 1920x1080

this is my ioreg file(monterey) MacBook Pro.7z

It works normally in monterey

yes this is my EFI EFI.7z

The CPU is i5-6200U, the graphics card is HD520, and the seventh generation HD620 is counterfeit faked. This is my graphics card setting: