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Two video cards setup. How disable gpu?


existation
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Hello. I need to disable my cards in Windows 11 and macOS Monterey.

I have two gpus: RX 7900 XTX for Windows and RX 550 for macOS.

I need this scenario. Windows uses RX 7900 and can not see RX 550 and other wise, macOS uses RX 550 and can not see RX 7900.

What i tried to do so far:

- in Windows i disable RX 550 in device manager

- in macOS i tried two methods:

1 I used this code in my config

<dict>
				<key>IOName</key>
				<string>#display</string>
				<key>class-code</key>
				<data>
				/////w==
				</data>
				<key>device-id</key>
				<data>
				//8AAA==
				</data>
				<key>disable-gpu</key>
				<true/>
				<key>name</key>
				<data>
				I2Rpc3BsYXk=
				</data>
				<key>vendor-id</key>
				<data>
				//8AAA==
				</data>
			</dict>

this method works for now.

2 I tried this method found on Dortania site. This method uses SSDT. But, when I use this SSDT my hack boots a few times normally and at the end I got black screen.

RX7900XTX

PCIROOT(0)#PCI(0100)#PCI(0000)#PCI(0000)#PCI(0000)
ACPI(_SB_)#ACPI(PC00)#ACPI(PEG1)#ACPI(PEGP)#PCI(0000)#PCI(0000)

_SB_.PC00.PEG1.PEGP

When hack boots I have AMD Radeon Polaris 4Gb. When hack boots using first method I have AMD Radeon RX 550 4 Gb. But when I use device property method I have in graphics two cards: RX 550 and unknown card.

Can any one help me with this?

SSDT-GPU-DISABLE.aml

Edited by existation
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