PLEASE READ:

  • This kext is only for owners of MSI P43T-C51 motherboard, will not work with any other.

  • This kext works in conjunction with stock AppleHDA.kext. If you have previously patched your AppleHDA.kext, you must restore it to the vanilla version. This kext does not work by itself.

  • Do not use VoodooHDA with this kext.

  • Requires HDEF layout-id 1 (0x01, 0x00, 0x00, 0x00) set by DSDT or other means.

  • Fully tested and works on OS X 10.8 and 10.9. Does not work on any other version.

  • The following ports were tested and work properly: back green, back pink, back blue, front green, front pink


INSTRUCTIONS:

  • Extract the kext into /System/Library/Extensions (it will not work from Extra or other folders)

  • sudo chown -R root:wheel /System/Library/Extensions/ALC885.kext

  • sudo chmod -R 0755 /System/Library/Extensions/ALC885.kext

  • sudo kextcache -system-caches

  • sudo kextcache -system-prelinked-kernel

  • Edit your DSDT HDEF device to supply layout-id of 1

  • Reboot


CONCLUSION:

  • Now your Hac has full audio support just like a real Mac!! It should not break with OS updates unless Apple drastically changes the design of AppleHDA.kext. The last OS I tested it with at the time of this writing was 10.9.1.


Many thanks fly out to Ondrej who figured out the correct pin configs and wrote the custom layout files! source

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