MacOS Sonoma: Setting up NVIDIA GPU + Intel HD630 GPU mode Help Please

[rhinca2026]

Please help on what Device Properties make sense for a very unique system configuration. I am aware that the NVIDIA GPU is not supported by MacOS Sonoma.

Tried the following Device Properties, but get a black screen. The only way around this for completing the installation was to add -igfxvesa in the boot argument.

Device Properties:

PciRoot(0x0)/Pci(0x2,0x0)
├── AAPL,ig-platform-id → 07009B59 (Data) // Desktop with connectors
├── device-id → 16590000 (Data)
├── framebuffer-patch-enable → 01000000 (Data)
├── framebuffer-stolenmem → 00004001 (Data) // 256MB (to match BIOS settings)
├── framebuffer-con1-enable → 01000000 (Data)
├── framebuffer-con1-type → 00040000 (Data) // DisplayPort

The system configuration is basically capable of operating in two distinct modes (see system diagram below):

1. NVIDIA GPU–only mode (Default Configuration)
2. NVIDIA GPU + Intel GPU mode.

In the BIOS I can select and enable Intel graphics on DisplayPort port #4 (mux shown in the system block diagram below) in the BIOS and also configure the Video Memory. Its quite possible the the Intel GPU doesn't get started until after the OS get loaded....