So I believe I know the answer (or almost) to the problem. The problem is the speaker & headphones DACs are not being mixed on the same mixer. The problem is to figure out which mixer does this I need the spec for the codec. Does anyone know I can get a hold of data sheet for the Conexant CX20561 or CXT5051 ? Thanks, Jerone On Mon, 2010-02-22 at 17:55 -0600, Jerone Young wrote: > There is an interesting problem with Lenovo Thinkpads X200, X200s, X301, > & .. looks like W500 using the Conexant CX20561 codec under Linux with > alsa. > > But if you have your headphone plugged in. You get audio .. but if you > press the hardware mute button .. it will not mute the headphones. By > pulling out the headphones you will notice though that the internal > speakers are muted. > > At first I blamed the bios. But then I did a test under FreeDOS where I > used the beep command for sound. Sure enough I press the mute button and > the headphone jack is muted. > > I've been looking for any documentation I can find on the CX20561 but > there is non out there I can find. I could be wrong, but it seems some > bit isn't being flipped for this codec to work correctly with this > functionality with the alsa driver. > > > Any ideas? > > I've created a bug here: > https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4928 > > Thanks, > Jerone > > > > > _______________________________________________ > Alsa-devel mailing list > Alsa-devel@xxxxxxxxxxxxxxxx > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
