Dual NAVI GPU boot with black screen

[Draft59]

macOS Version

Sequoia

What is your CPU's model?

AMD Ryzen 9 5900X

What is your GPU's model?

GPU 1 : 6900XT / GPU 2 : 6750XT

Please describe the behaviour in detail.

The NootRX (without Whatevergreen) is creating a black screen after booting with the dual GPU
With each separate GPU, boot is working fine on both with NootRX
Without NootRX nor Whatevergreen, the boot is working on 6900XT (and the 6750XT appear as monitor)

What should've happened instead?

with NootRX and Dual GPU Card
6900XT
IOACPIPlane:/_SB/PCI0@0/GPP8@30001/SWUS@0/SWDS@0/VGA@0
IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/GPP8@3,1/IOPP/SWUS@0/IOPP/SWDS@0/IOPP/VGA@0
PciRoot(0x0)/Pci(0x3,0x1)/Pci(0x0,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)
6750XT
PCI0@0/GPP9@3,2/pci-bridge@0/pci-bridge@0/display@0
IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/GPP9@3,2/IOPP/pci-bridge@0/IOPP/pci-bridge@0/IOPP/display@0
PciRoot(0x0)/Pci(0x3,0x2)/Pci(0x0,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)

with NootRX standalone card
6900XT
IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/GPP8@3,1/IOPP/SWUS@0/IOPP/SWDS@0/IOPP/GFX0@0
6750XT
IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/GPP9@3,2/IOPP/pci-bridge@0/IOPP/pci-bridge@0/IOPP/GFX0@0

If applicable, attach the .gpuRestart, .panic, etc file related to this issue.

opencore-2026-01-03-154325.txt

[VisualEhrmanntraut]

yeah the kext is not really designed to support more than one gpu and am not really getting donations from hackintosh so I don't think I'll work on this

[Draft59]

ok thanks for the quick response. Do want I move the request to Features ?