Screen distortion on Ivy Bridge HD4000 and Monterey Laptop

[GooseDev72]

Hello guys, I want to ask for some help for this laptop:
Model: Samsung 5 Series (2009)
Cpu: i5-3210M
Gpu: Intel Graphics HD4000
Ram: 8GB DDR3
Storage: 200GB SATA SSD
OpenCore Version: 1.0.4

After installation there was no graphics acceleration, after patching with OCLP the root, I get bad backlight and VERY high contrast, like a distortion on the internal screen. After reverting, I get normal screen. What can I do to make the painful graphics work?

 

[EliteMacx86]

Hello guys, I want to ask for some help for this laptop:
Model: Samsung 5 Series (2009)
Cpu: i5-3210M
Gpu: Intel Graphics HD4000
Ram: 8GB DDR3
Storage: 200GB SATA SSD
OpenCore Version: 1.0.4

After installation there was no graphics acceleration, after patching with OCLP the root, I get bad backlight and VERY high contrast, like a distortion on the internal screen. After reverting, I get normal screen. What can I do to make the painful graphics work?View attachment 9319

With the OCLP root patching, is acceleration available? If so, try to enable CSM/Legacy/Legacy OptionROM in BIOS and the issue should be fixed.

Also, if there's no option or it doesn't fixes it, you might need EDID patching.