GPU VRAM stuck at 31mb on Kaby Lake R UHD 620 graphics card.

[MarkHP]

Hi,
I have an HP Spectre x360 13" with Intel Core i7 8550u, UHD 620 and a 4k internal display. I tried several frame buffer patches and followed a lot of guides and turns out that the os boots with just 2 combinations of AAPL but the VRAM is 31MB. You cannot change the DVMT Pre Allocated space in bios since hp doesn't allow that. I'm using Opencore 0.7.0 with macOS Big Sur 11.4. Does anyone know the correct framebuffer patches or how to change DVMT Pre Aloc size?

 

[EliteMacx86]

Hi,
I have an HP Spectre x360 13" with Intel Core i7 8550u, UHD 620 and a 4k internal display. I tried several frame buffer patches and followed a lot of guides and turns out that the os boots with just 2 combinations of AAPL but the VRAM is 31MB. You cannot change the DVMT Pre Allocated space in bios since hp doesn't allow that. I'm using Opencore 0.7.0 with macOS Big Sur 11.4. Does anyone know the correct framebuffer patches or how to change DVMT Pre Aloc size?

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