No sound on headphones on an Asus k50ij

Question

I've tried the solution from 11.04 however it doesn't seems to work. No matter what do I mute or unmute.

Answer 1

I solved it one minute ago, try:

sudo add-apt-repository ppa:ubuntu-audio-dev/alsa-daily
sudo apt-get update
sudo apt-get install alsa-hda-dkms

then reboot or

sudo alsa force-reload

sorry if too late