External display not working after disabling dGPU

Hi!

I'm trying to resolve some issues with my current EFI folder and started a new EFI from scratch. Everything is working fine except for the external display.

Until now I was using MacBookPro15,2 SMBIOS, but the recommended one is MacBookPro16,1 (i7 9750H).

With MacBookPro15,2 the external display works even after disabling dGPU with -wegnoegpu or using ACPI patches (Optimus method).

After switching to MacBookPro16,1, the external display works without -wegnoegpu and ACPI patches. When I try any method to disable dGPU, the external display won't work.

I read a topic some time ago saying that external display works best with SMBIOS from devices without dGPU (that's why I ended up using MacBookPro15,2, because only have Intel GPU on that model).

Is there a way to use MacBookPro16,1, disable my dGPU (rtx2060) and put the external display to work?

Thanks!

submitted by /u/SegrobOel
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