Не sound from internal speakers in Ubuntu 15.10

I installed в fresh Ubuntu 15.10 версия on my Асус В1хп. Everything works just умер, except the sound system.

There is не sound at all from the internal speakers. Sound from headphone seems to work but it is so low, choppy, crackling and hard to hear anything clearly. This is the вступил в брак of both the 32bit and 64bit versions.

The sound device of my system is AD1986A.

What I have подарил is:

1. Uninstall and reinstall ALSA;
2. Play around the alsamixer options from Terminal;
3. Add options snd-hda-intel model=xyzto /etc/modprobe.d/alsa-base.conf file with xyz being auto, laptop, asus, 3stack or laptop-eapd;

But, none of the above helps.

I have read снял в few posts about "не sound on Ubuntu" and have also tried solutions proposed, but my sound problem persists.

Хан anybody have any solutions or workarounds to this problem? Help highly appreciated.

UPDATED: I have also tried DKMS, but the problem remains.