ASUS U52F Laptop Headphone Jack Not Recognized

[fieloryb]

For Asus K52F solution is:

1. (in terminal)

~$ sudo gedit /etc/modprobe.d/alsa-base.conf

{password}
2. add last line:

options snd-hda-intel model=z71v position_fix=1

3. restart 'puter
Source

[fieloryb]

Other solution is installing Alsa 1.0.23

source
and add

options snd-hda-intel model=ideapad

to:

sudo gedit /etc/modprobe.d/alsa-base.conf