I have recently upgraded my Ubuntu 11.10 distribution to Ubuntu 12.04 LTS on my HP pavillion dv6 laptop.
This is the output from 'aplay -l' command of my system.
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: STAC92xx Digital [STAC92xx Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
After rebooting I noticed that I had no sound. After trying many things, to resolve this problem I had to add the following two lines to the "alsa-base.conf" file.
alias snd-card-0 snd-hda-intel
options snd-hda-intel model=auto
If this does not work then replace "auto" with the following keywords one at a time. Save the file and restart your computer each time you test with one configuration.
ref - Reference boardReference :- ubuntu 12.04 no sound vostro 3300 i5
mic-ref -Reference board with power management for ports
dell-s14 -Dell laptop
hp -HP laptops with (inverted) mute-LED
hp-dv7-4000 -HP dv-7 4000
auto - BIOS setup (default)
Chathura
