Laptop Internal 4K Display Not Working

Hello,

I Have a HP Spectre X360 2020
CPU: 1065G7
RAM: 16GB
GPU: Intel Iris Plus G7 Graphics
Display: 13.3" diagonal 4K UWVA BrightView micro-edge AMOLED multitouch (3840 x 2160)

I'm using the OpenCore 0.6.2 config built using Dortania's guide.

I've tried to boot with empty framebuffer and Internal will work, but with laggy graphics and no back light adjustment.
Later I use IceLake's framebuffer patch -igfxcdc -igfxdvmt in boot-args.
I got external monitor work but the internal display...

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