Thank you very much:)
You solved the audio issue i faced during two weeks in a few minutes!
ALC is now fully working (using the recent kext in your link), didn't have the opportunity to test the hdmi output though but I will do. (Micro, headphone(with auto detect)and speaker are fully working)
I will follow the steps in order to try to fix the sleeping issue when I get home.
You deserve a beer my friend