No sound and Cant't find /mach_kernel after Yosemite install.

[Pakalolo]

No sound ALC889 after Yosemite install

Everything was working great before. mb is z68xp-ud5 the sound disappeared on Mavericks before but, I was able to get it back on Multi Beast 6.2.2 and it does not work on Yosemite. My onboard sound is ALC889.

 

[guitaristbryan]

Everything was working great before. mb is z68xp-ud5 the sound disappeared on Mavericks before but, I was able to get it back on Multi Beast 6.2.2 and it does not work on Yosemite. My onboard sound is ALC889.

I have the same issue with a Gigabyte Z68xp-ud3, I did what another user suggested and fire up iTunes and play a song.
Then, go to System preferences -> sound and you should see an option to choose internal speakers or Line Out or what have you.

Good luck!