Comment 54 for bug 253422

Still a problem for me, on Acer Aspire 5050 with Ubuntu Jaunty 9.04, after trying a bunch of values for model= . '

Basically, with the best profile I found I was able to independently control and mute speaker and headphone volume, but none detected the headphones (manual muting was required). What's particularly annoying is that acer-aspire profile actually DIDN'T work on my Acer Aspire...

Some test results:

targa-dig - Speakers don't mute when headphones are plugged in.
tagra-2ch-dig - can't get speakers to work. Headphones work.
acer-aspire - The Headphone switch DOES work. Speakers DON'T work.
acer, 6stack-dig - Speakers on "Surround" channel, headphones on "Front". Either can be independently muted, but only manually (no automatic speaker muting). Headphone switch doesn't work.
3stack - can't get speakers to work. Headphones switch doesn't work. Headphones do work.
3stack-dig - speakers work, but don't mute with headphones plugged in. Headphones work.

$ cat /proc/asound/card0/codec#* | grep Codec
Codec: Conexant ID 2c06
Codec: Realtek ALC883

$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: SB [HDA ATI SB], device 0: ALC883 Analog [ALC883 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: SB [HDA ATI SB], device 1: ALC883 Digital [ALC883 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

utils_alsa-info.sh: http://www.alsa-project.org/db/?f=6f0a3764ea1e693cdb50090df3992ef0414dc7de