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[Solved] Precision M4800: no audio in Big Sur


Tomi
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Hello Jake Lo. I knew  you'd get in touch :)

 

I have fix it!

Steps In my case:

1. Used AppleALC.kext (CodecCommander.kext is no needed)

2. OC 0.7.5

3. On config.plist: DeviceProperies/Add/PciRoot(0x0)/Pci(0x1B,0x0) and layout-id = 12 This is for my sound card ALC292 and layout = 12

 

Best regards

TOM

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