Hello,
Thanks you for your support, amazing work.
I have an issue when I enable IGPU, I can't boot Catalina. (15.2 Last build)
If I use PCI1 (RTX270) it works, but without any acceleration, very laggy.
I used your DSDT, EFI folder from Polaris.
MY hardware:
Gigabyte Z390 Aorus pro (last bios F11)
i9600K
Corsaire 100i
16gb
Asus RTX 270 (i will buy a RX580in few days because I sold the RTX)
but I want use Igpu for the moment.
I need your help, to make all works.