I have installed Lisa on my laptop to gain some more experience with Linux (so I'm fairly new). The only problem I can't seem to overcome is that the headphone jack won't work. The laptop speakers work fine. In fact the onboard speakers correctly mute when headphones are plugged in, but there is simply no sound in the headphones.
This seems to be a fairly common problem but this seems to have a bit of twist that I haven't seen too many forum posts addressing... The alsamixer doesn't show a channel for the headphone jack. Under the Output tab of Sound Settings the only device listed is "Internal Audio Analog Stereo" and under the "Connector" field it just has "Analog Speaker" with no other option. I've gone around in circles with this one and even added "options snd-hda-intel model=thinkpad" to alsa-base.conf just to be safe, but no luck. I know the headphones are good and I know the stereo jack is good as it works fine with WinXP (not dual boot, XP is on a separate HDD).
Here are the particulars:
Lenovo Thinkpad R61
Card: HDA Intel
Chip: Conexant CX20549 (Venice)
Any ideas of where to go next with troubleshooting this?