Hi Ralf,

thank you for your mail.

Ralf Mardorf schrieb am  4. November 2026

> are you using a sound server like pulseaudio?

when I first faced the problem that none of the slide controls in
alsamixer (especially not Master, Headphones and PCM) did bring sound
to my headphones, I did not use pulseaudio.

Yesterday, I installed pulseaudio and pavucontrol.

Running with pulseaudio I did not notice any change.

With pavucontrol there were to findings:
- Plugging in and plugging out of the headphones are detected

- the meter for the headphone moves in a normal range which
  corresponds to the sound from the file. Nevertheless the output is
  almost not to hear.


 
> If you're using plain ALSA without a sound server, you'll probably need
> to configure it to specify that you want to use headphones instead of,
> say, HDMI.
> 
> I've configured ALSA so that I can use the speakers on my EV2450 monitor
> via HDMI:
> 
> ??? rocketmouse@archlinux ~ 
> $ aplay -l | grep EV2450
> card 3: PCH [HDA Intel PCH], device 3: HDMI 0 [EV2450]
> ^^^^^^                       ^^^^^^^^
> 
> ??? rocketmouse@archlinux ~ 
> $ cat .asoundrc
> defaults.pcm.card 3
> defaults.pcm.device 3
> 
> In your case...
> 
> On Tue, 2026-11-03 at 22:14 +0100, [email protected] wrote:
> > headphone
> > 
> > APLAY
> > 
> > **** List of PLAYBACK Hardware Devices ****
> > card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
>   ^^^^^^                       ^^^^^^^^
> >   Subdevices: 1/1
> >   Subdevice #0: subdevice #0
> > card 0: PCH [HDA Intel PCH], device 1: ALC892 Digital [ALC892 Digital]
> >   Subdevices: 1/1
> >   Subdevice #0: subdevice #0
> > card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
> >   Subdevices: 1/1
> >   Subdevice #0: subdevice #0
> 
> ... you could also configure it for the headphones, that is, "Analog",
> for the user via $HOME/.asoundrc, with the following content:
> 
> defaults.pcm.card 0
> defaults.pcm.device 0

I created the file /etc/asound.conf with these two lines. It should
provide these settings globally. Regrettably, I found no improvment.


> On the other hand, I suspect that "card 0" and "device 0" are default
> values that shouldn't actually require any configuration.

As I read that the mapping of controls in alsamixer was wrong (Front was not 
Front but something else). I checked which sliders / setting have an effect.

Element         Slider        Mute-Switch
Master          yes           no 
Headphone       no            no
PCM             yes           no
Front           no            no
Sourrond        no            no
Center          yes           no

I found it remarkable that the mute-switch never had an effect. As if
the traces I am able to hear are remants of permanent muting.

I find it as well astonishing that selection of playback elements
(with F3) does not hide elements (like Front Mic) I would regard as
input.

 
> Unlike professional or prosumer audio devices, you don't need dmix or a
> soundserver for these onboard audio devices so that multiple programs
> can access the audio device at the same time.

Meanwhile I deinstalled pulseaudio (which started as a daemon) again.
I want to keep things easier.

> It's really, really rare for my audio to stop working for no apparent
> reason. When that happens, I have to restart the computer, and then the
> audio works again.


> Does alsamixer not show headphone for your Intel device? Since I use
> HDMI, it's irrelevant to me, but for me, alsamixer displays a fader
> labeled ???Headphon??? (not spelled out in full).

There is a fader "Headphones".

Regrettably, I cannot check whether a HDMI monitor with speakes would
receive an audio signal as I use a monitor with VGA cable.


> Every now and then I read on mailing lists that there are problems
> with onboard devices and headphones. Unfortunately, I can't offer
> any further insight on this, since I use professional audio devices
> when it comes to headphones. You might want to try a user mailing
> list for the Linux distribution you're using, where there's more
> activity than on this list.

Again thanks. So far, I did not search in the debian user mailing
list.

Regards
Markus


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