How to setup 'asound.conf' so that it uses a specific audio subdevice.

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mccurly

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Jun 25, 2025
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Hello everyone.

(I am becoming an ´habituée´, well sort of, am I not? And that is not really some bad event, or is it? ) ;)

Moving on.

If needed be, I will explain why I need to do this. But, for the sake of simplicity, I am going to be the most objective I can for now.

Alsa is puzzling to me. Always was and maybe it will always be. I am trying to set hw:0,3 as the default 'device' for my Proxmox VE server. I am striving to do so. Couldn't get more than being sure that it could work, since the speaker-test -t wav -c 2 -D hw:0,3 command works as expected. Sound does come from the chosen output.

Something very simple must be at a hands grasp or 'under my nose', but what could that be?

Can anyone point my impatience to a more 'greener' or peaceful 'pasture'?

Thank you anyone beforehand!
 
If you turn your Proxmox into a workstation with a full graphical desktop environment ( https://pve.proxmox.com/wiki/Developer_Workstations_with_Proxmox_VE_and_X11 ) then you could install and use GUI tool for selecting the default sound output. I don't know how to do it on the command-line, sorry.

EDIT: Maybe create a Proxmox VM with a desktop and see what it changes when you use GUI applications to set the default audio output?
 
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