Dude first tnx for awesome help,

Second one usefull thing for everyone who have HP Pavillion dv6 series ..use trick with "model=hp-dv5" ..It works.For other people should gonna be hopeful (just dont complicate things and u will success) :

1. skip this command "head -n 1 /proc/asound/card0/codec*" it can confuse u
2.type this in terminal aplay -l
3.from the right side ull see ur codec model (in my case it was STAC92xx Digital [STAC92xx Digital])
4. now type this command in terminal zless /usr/share/doc/alsa-base/driver/HD-Audio-Models.txt.gz

5.now just find ur codec model in the list
6.open new terminal tab and type this command sudo gedit /etc/modprobe.d/alsa-base.conf
7. try to find line "options snd_hda_intel model=hp-dv5" ,change model value according ur codec model...try all models from the list in model`s subsection from HD-Audio-Models.txt.gz document if u dont know what u should use,after every change u have to restart ur lap top

I hope this will help for someone