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Removing PCIe device entirely

Joined
Mar 28, 2017
Messages
23
Motherboard
More than one
CPU
Ryzen 5900
Graphics
5700XT
I've found a lot of threads but i cant get it to work. So maybe someone here can help me out.
I need to disable a PCIe device - a sound card - using a DSDT patch or SSDT. The sound card is incompatible, but appleALC will always load it first and rename it to HDEF, while the compatible soundcard will be ignored. Fixed in the past by setting the sound card as external-audio, but this feature is broken in OSX 11.


99919320-f2c0fc00-2d1c-11eb-8c07-7ab787fca253.png

I tried it using the following SSDT: https://github.com/acidanthera/bugtracker/files/5580531/Untitled.dsl.txt

but i cant get it to work. I cant use HDEF, as this is set by AppleALC. I cant use BYD4 as it is identified as pci-bridge4, then pci-bridge0.
Can someone point me the mistake i made?
 
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