tried on my ALC268 (HP-dv6500)
good: after weaking up, there are still sounds, but with noise.
bad: mic stoped working.
and I am having the common bugs people are having here, too. like needs to adjust PMC and so on.
please help me if you have the same chip, and you are smart to update the kext.
thanks again , to author and the people here, and the forum.