Re: mixerctl question

[RVP <rvp%SDF.ORG@localhost>]

On Sat, 6 Sep 2025, beaker wrote:

> $ mixerctl -a
> outputs.master=0,0
> outputs.master2=120,120
> inputs.line=0,0
> inputs.line.mute=on
> outputs.dacsel=DAC00,DAC02
> record.source=ADC01,ADC03
>
> I've been testing the 11.x beta on an older Lenovo G550 laptop and
> noticed mixerctl shows two outputs, output.master and output.master2.
> Unfortunately it is the second one that is actually being used but
> most of the mixer control apps I like to use only see /dev/mixer0
> which is apparently bound to output.master [...]

Actually, /dev/mixer0 is for both outputs (DAC00 and DAC02). One DAC is
for the headphones, the other one is for the speaker. You should be able to
see which is which in a dmesg output (boot -vx may help more).

> Is there some way to swap the outputs?

Not without fiddling with the source I think. What you can do fairly easily
however, is to associate both outputs with a single DAC so that plugging in
the HPs mutes the speaker (which is what Linux does by default). I can tell
you how if you want. (This is what most people want.)

> My real preference would be to bind the Fn + Vol-/Vol+ keys to the
> appropriate mixerctl command strings but said keys don't appear to
> generate any keycodes at all [...]

Try xbindkeys in pkgsrc.

-RVP