Firstly I want to thank RehabMan for provided support, it is thanks to you that I'm able to successfully run this laptop with Yosemite+. But in the last year I started to dislike OS X so much, I had serious thoughts of going Linux. After installing 10.9 it does feels like home again, but I'm unable to fix video and sound.
What I have:
Acer Aspire V Nitro VN7-591G
and...
HD4600, ALC283 lost: downgrading from working 10.10+
What I have:
Acer Aspire V Nitro VN7-591G
and...
HD4600, ALC283 lost: downgrading from working 10.10+