About This File
update:10.8.2 Oct.3 2012
Y450 alc269 id: 0x10ec0269
Everything works. Intspeaker, headphone, mic and Exmic, all working! And auto change.
Ps: If your dsdt haven't been added specific HDEF codes(no sure? check my HDEF and yours :-) ), please use HDAenabler.kext.
No guarantee of working for other kind of laptop.
Please feedback. danke.
By Lukas Chan.