Lenovo 3000 N100 -- Sound With Kubuntu

Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)

The sound driver has many options, but few seem to work with the ALSA sound system.

To find which chip set you are using execute this command:

$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 6: Si3054 Modem [Si3054 Modem]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

You can see my chip is AD198x then on Kubuntu Gutsy list the file:

$ less /usr/share/doc/alsa-base/driver/ALSA-Configuration.txt.gz

The search for, in my case, AD198 and you will find:

        AD1986A
          6stack          6-jack, separate surrounds (default)
          3stack          3-stack, shared surrounds
          laptop          2-channel only (FSC V2060, Samsung M50)
          laptop-eapd     2-channel with EAPD (Samsung R65, ASUS A6J)
          laptop-automute 2-channel with EAPD and HP-automute (Lenovo N100)
          ultra           2-channel with EAPD (Samsung Ultra tablet PC)

To get it to work edit the following file:

$ sudo nano /etc/modprobe.d/alsa-base

I have placed in this file all my hits and misses including comments about each. It is the last one that works the best.

## No music through the headphones and less options than 'ultra'.
#options snd-hda-intel single_cmd=1 model=lenovo
## 6stack has many options, but no sound from speakers or headphones
#options snd-hda-intel model=6stack
## 3stack has many options, but no sound from speakers or headphones
#options snd-hda-intel model=3stack
## laptop 4 output options no sound at all.
#options snd-hda-intel model=laptop
## laptop 4 output options sound from speakers and headphones
#options snd-hda-intel model=laptop-eapd
## laptop-automute is the Lenovo default, but no sound from speakers
#options snd-hda-intel model=laptop-automute
## ultra 5 output options both speakers and headphones work
options snd-hda-intel model=ultra

The total list of options for the AD1986A chip are below:

AD1986A Chip
------------
6stack 6-jack, separate surrounds (default)
3stack 3-stack, shared surrounds
laptop 2-channel only (FSC V2060, Samsung M50)
laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
laptop-automute 2-channel with EAPD and HP-automute (Lenovo N100)
ultra 2-channel with EAPD (Samsung Ultra tablet PC)