Hey Manjo,
I'm not convinced this would be the most appropriate fix for this but in bug 389040 I'd found some patches for this sound card and codec that were from way back in Hardy (not sure why they were never merged upstream).
http://mailman.alsa-project.org/pipermail/alsa-devel/2009-May/016917.html
And it seemed to reference a patch to enable audio:
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-hardy-lum.git;a=commitdiff;h=7662834bb9a78d244c6d7ee43358c14c94d249c9
There also seemed to be a series of patches which followed to mute the speakers when the headphones are plugged in:
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-hardy-lum.git;a=commitdiff;h=d47775d68efa5d80552839231fcb4f54dc254c08
And then enable the microphone:
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-hardy-lum.git;a=commitdiff;h=cc28eee26d33fac60d598fb2269e673ba83570e9
I'd forward ported the above patches to Jaunty and had positive feedback from testers:
http://people.canonical.com/~ogasawara/lp389040/jaunty/
Unfortunately trying to forward port once more to Karmic resulted in the built in mic not functioning any longer, so they're not perfect but may help.
Hey Manjo,
I'm not convinced this would be the most appropriate fix for this but in bug 389040 I'd found some patches for this sound card and codec that were from way back in Hardy (not sure why they were never merged upstream).
http:// mailman. alsa-project. org/pipermail/ alsa-devel/ 2009-May/ 016917. html
And it seemed to reference a patch to enable audio:
http:// kernel. ubuntu. com/git? p=ubuntu/ ubuntu- hardy-lum. git;a=commitdif f;h=7662834bb9a 78d244c6d7ee433 58c14c94d249c9
There also seemed to be a series of patches which followed to mute the speakers when the headphones are plugged in:
http:// kernel. ubuntu. com/git? p=ubuntu/ ubuntu- hardy-lum. git;a=commitdif f;h=d47775d68ef a5d80552839231f cb4f54dc254c08
And then enable the microphone:
http:// kernel. ubuntu. com/git? p=ubuntu/ ubuntu- hardy-lum. git;a=commitdif f;h=cc28eee26d3 3fac60d598fb226 9e673ba83570e9
I'd forward ported the above patches to Jaunty and had positive feedback from testers:
http:// people. canonical. com/~ogasawara/ lp389040/ jaunty/
Unfortunately trying to forward port once more to Karmic resulted in the built in mic not functioning any longer, so they're not perfect but may help.