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Yes I have set it to 128 mb and uma instead of hybrid which I assume is only discreet graphics still this is happening. Graphics acceleration works awesome but the brightness goes up and down sooo fast, ina high frequency idk what to do.

oh my god you absolute legend it works but with a slight problem. The screen brightness goes up and down every half second like in a specific frequency I have video but cant share here i think.

Intel i5-8250U, UHD 620 HP Probook x360 440 G1 MX130(which I dont wanna use coz nvidia doesnt work if im not wrong)

I did go there before posting but there was no UHD 620 config and I don't what the generic patch is.

Usually people get 7mb for their igpus but I'm getting 3mb only which results in 720p glitchy graphics. I tried to add - 00009B3E in AAPL,ig-platform-id for intel uhd 620 and device-id to 9B3E0000 according to https://dortania.github.io/OpenCore-Install-Guide/config-laptop.plist/coffee-lake.html#deviceproperties Still doesnt work. What am I missing? Some dsdt I have to patch for gpu? Here's my config file. Couldn't upload my efi in zip coz of file limit. Also MaLd0m is a legend you saved me from countless more hours of troubleshooting, Thank YOU! config.rar