[Alsa-user] Dell Precision M4400: no headphone sound

[Walter N. <ne...@ma...>]

I have just set up a Dell Precision M4400 using 
Intel Corporation 82801I (ICH9 Family) sound controller
I am running Fedora 10.

Speakers and external microphone work fine. When I plug in the headphones 
I get no sound.  Headphones show up in the mixer and claim to be on full 
volume. They work fine in Windows Xp.

Alsa-info output is at

http://www.alsa-project.org/db/?f=af0e48883fe43356caa97b384ae10e52973a3d96

I've browsed the threads on sound problems and have tried loading the 
snd-hda-intel module with model=dell-m4-1, dell-m4-2, hp-m4 and every 
other model that seemed plausible. I am at my wits end. I'd be 
grateful for help. Let me know if there is other information I should 
supply.

Thanks

--walter