Reviving an old thread, my i5-12400F and Asrock B660M-HDV went (poof) after a PSU issue. PSU was replaced under warranty; no such luck for the MB and CPU.
Now I'm trying to put the 6900XTXH into the older i7-8700 / Asus Z370-ITX (BIOS 3005).
I can boot into MacOS without doing anything; the graphics are slow, but it works. System Info shows "AMD Radeon Navi21 16 GB", Device ID: 0x73af, as expected. So, I need to spoof things. Bear in mind this worked great on the above setup. I already tried that old brg0 and modifications to the config.plist; no go. The colors cleaned up with the PCIList and the use of that brg0 file in ACPI section of EFI, but the acceleration and device name are still off.
Gfxutil has the following output:
01:00.0 1002:1478 /PCI0@0/PEG0@1/GFX0@0 = PciRoot(0x0)/Pci(0x1,0x0)/Pci(0x0,0x0)
02:00.0 1002:1479 /PCI0@0/PEG0@1/GFX0@0/pci-bridge@0 = PciRoot(0x0)/Pci(0x1,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)
03:00.0 1002:73af /PCI0@0/PEG0@1/GFX0@0/pci-bridge@0/GFX0@0 = PciRoot(0x0)/Pci(0x1,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)
03:00.1 1002:ab28 /PCI0@0/PEG0@1/GFX0@0/pci-bridge@0/HDAU@0,1 = PciRoot(0x0)/Pci(0x1,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)/Pci(0x0,0x1)
I think I care about this from gfxutil:
PciRoot(0x0)/Pci(0x1,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)
Hackintool says this:
PciRoot(0x0)/Pci(0x1,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)
...so it agrees with gfxutil, which I understand is good.
I went to:
https://github.com/TylerLyczak/Unsupported-6900XT-Hackintosh-Fix/tree/master
The directions are:
Write down the path to GFX0@0 : (from gfxutil)
/PCI0@0/PEG0@1/GFX0@0/pci-bridge@0/GFX0@0
From IORegEx:
IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/PEG0@1/IOPP/GFX0@0
Simplified that’s:
PCI0@0/AppleACPIPCI/PEG0@1/IOPP/GFX0@0
Errrr...now what? I'm lost on his directions for what to do with brg0:
/*
* This table provides an example of creating a missing ACPI device
* to ensure early DeviceProperty application. In this example
* a GPU device is created for a platform having an extra PCI
* bridge in the path - PCI0.PEG0.PEGP.BRG0.GFX0:
* PciRoot(0x0)/Pci(0x1,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)
* Such tables are particularly relevant for macOS 11.0 and newer.
*/
DefinitionBlock ("", "SSDT", 2, "ACDT", "BRG0", 0x00000000)
{
// Fix this path
External (_SB_.PCI0.PEG1.PEGP, DeviceObj)
// Fix this path
Scope (\_SB.PCI0.PEG1.PEGP)
{
/*
* This is a PCI bridge device present on PEGP.
* Normally seen as pci-bridge in I/O Registry.
*/
Device (BRG0)
{
Name (_ADR, Zero)
/*
* This is an actual GPU device present on the bridge.
* Normally seen as display in I/O Registry.
*/
Device (GFX0)
{
Name (_ADR, Zero) // _ADR: Address
}
}
}
}
....what do I change in the above? He talks about lines 13/16 and 30 (in MaciASL that's more clear...) but I have no idea WHAT to change it to....
Can anyone help? A year ago when I did this with the B660M-HDV it made a lot more sense, but now I am just a bit confused.