Re: [Trisquel-users] Envy 24 sound card issues.

[enduzzer]

Try package alsa-tools-gui. Debian has it, Ubuntu has it, Trisquel probably  
has it.

sudo apt-get install alsa-tools-gui
http://packages.ubuntu.com/trusty/alsa-tools-gui

https://packages.debian.org/jessie/alsa-tools-gui

Then type:

envy24control