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

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
produces sound on all 5.1 channels BUT 7.1 channels "Side Left" and "Side Right" stay silent.
works (sound output on speaker plugged in to rear jack) while
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:

  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!

Statistics: Posted by bitkeeper — 2024-12-01 13:50 — Replies 1 — Views 40

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