this post was submitted on 31 May 2024
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I don't know if I didn't install non free firmware. Pavucontrol is installed. If I type alsa on a terminal it returns: bash: alsa: command not found.

ETA: turns out I only had to update the system

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[–] [email protected] 4 points 5 months ago* (last edited 5 months ago)

There isn't an alsa command on my system either, so that's no surprise. But we'll need more information to track down the cause, such as:

  • What (sound) hardware are you using? (try lspci | grep Audio)
  • What happens when you try to play a sound? Does it get stuck loading / at 0:00, show an error, or just play silently?
  • Is your system using pulseaudio directly, or via pipewire? (try pactl info)
  • What shows up in pavucontrol? (Is it detecting your speaker, or just "dummy output"? Is sound muted, and can you unmute?) Try also alsamixer.
  • If you installed non-free firmware, you should have a few lines like deb http://deb.debian.org/debian/ bookworm main contrib non-free-firmware in the file /etc/apt/sources.list. If non-free-firmware is not present, then obviously you have no non-free firmware.