Re: [Alsa-user] Missing mixer item "Headphone": Regression in Linux from 2.6.14.7 to 2.6.15

[Clemens L. <cl...@la...>]

Erik wrote:
> Clemens Ladisch wrote:
> >Erik wrote:
> >
> >>In the upgrade from Linux 2.6.14.7 to Linux 2.6.15 the mixer item
> >>"Headphone" was lost.
> >
> >This kernel added a "headphones only" workaround for the Inspiron 8600
> >that removes the headphone controls and controls the HP volume with the
> >master controls.
> 
> Thanks, how is the workaround enabled?

By booting 2.6.15.

Your problem is that this type of workaround is wrong when there
are speakers which it makes sense to control independently.

How exactly did the controls in the old kernel work, the Master controls
affected the internal speakers and the Headphone controls the HP port?

> numid=38,iface=MIXER,name='External Amplifier'
>  : values=on

Try toggling this switch.


Regards,
Clemens