ACPI patch doesn’t work on older OS X

I installed macOS Success' href='/2020/12/install-macos-mojave-on-supported-pc.html'>Mojave with working almost everything (brightness, audio, battery % etc) and wanted to try the older OS X. I installed Mountain Lion but could never got the patch to work (no audio, no brightness adjustment, battery % works however), also mounting EFI failed?!

I’m using latest OpenCore version

Specs:

Driver changes:

  • Add OpenPartitionDxe.efi

Kext changes:

  • Replace VoodooPS2 to VoodooPS2Controller by Rehabman for keyboard and touchpad (touchpad runs crazy but I use mouse so that’s alright)

Config changes:

  • Kernel -> Quirks -> AppleCpuPmCfgLock -> True
Author: @AndyPea1230