alsa-project
ASUS Maximus Z790 Hero (ALC4082) - USB Audio 5.1 speakers assigned incorrectly and subwoofer not working
I hope I'm correct to post this here. Still new to things Linux.
Situation OS: Kubuntu 24.04 Mainboard = ASUS ROG Maximus Z790 Hero USB Audio = 0b05:1a53 ASUSTek Computer, Inc. USB Audio Speakers = Logitech Z906 Surround Kernel = 6.8.0-40-generic Alsa version = 1.2.9
Issue The speakers seem to be assigned incorrectly and the subwoofer isn't working. I'm testing the speakers through pulseaudio as follows:
I'm listing the results below in three categories:
- The icon clicked within pulseaudio
- The soundfile played
- The speaker the sound is actually output to
Icon clicked - Soundfile played - Physical speaker output Front Left - Front Left - Front Left Front Center - Front Center - Rear Left Front Right - Front Right - Front Right Rear Left - Rear Left - Front Center Subwoofer - Rear Center - Rear Right Rear Right - (nothing) - (nothing)
I've had a lengthy discussion on Reddit but I couldn't find a fix for it so far: https://www.reddit.com/r/linux4noobs/comments/1980uv1/comment/kieqsor/
I'm happy to provide all information necessary to pinpoint the issue and fix it.
I was able to resolve the issue by creating a separate config file for wireplumber. Details can be found here: https://www.reddit.com/r/linux4noobs/comments/1980uv1/comment/lnuzuf3/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button
ALSA reports channel positions using API - to check - use amixer -c 0 controls - look for chmap-variable lines. If the mapping is correct for your kernel, you should consult this with pipewire developers.
