ALSA: Sound Blaster Audigy RX 7.1: No audio on side channels (only 5.1 working)

[bitkeeper]

First post on Debian user forum; so bear with me.

Brand new Sound Blaster Audigy RX 7.1 with respective RCA break out cables installed on Debian 12.6 and kernel 6.1.0-28-amd64.

Problem

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speaker-test -Dplug:surround71:Audigy2 -c8 -t wav

produces sound on all 5.1 channels BUT 7.1 channels "Side Left" and "Side Right" stay silent.

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speaker-test -Dplug:rear:Audigy2 -c2 -t wav

works (sound output on speaker plugged in to rear jack) while

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speaker-test -Dplug:side:Audigy2 -c2 -t wav

does not work (no error message but also no sound on speaker plugged in to side jack)

Is it possible that 7.1-mapping by ALSA in /usr/share/alsa/cards/Audigy2.conf is wrong / not working for Audigy RX?


Measures taken so far

• Volume controls turned to 100% on all channels with alsamixer

• Used different cables (which are working on other jacks of same soundcard perfectly)

• Tried

  Code: Select all

  speaker-test -Dplughw:Audigy2 -c8 -t wav

  (direct access to device!)
  
  => also no audio on side channels (but all other channels)

• Completely deleted /etc/asound.conf

• Tried several live distros with newer alsa-lib package (same error)

• Pastebin with output of alsa-info.sh available here: https://pastebin.com/pa1N2kYK

Anyone an idea why 5.1 works but not 7.1? Appreciating any help!

[arzgi]

Hello and welcome!

Alsa is fading, pulseaudio and pipewire are the newer sound systems.

Found this https://wiki.archlinux.org/title/Advanc ... n_examples