Hi neonix
My goal is that every user who install fresh TCL, have working sound out of the box. ...
Really? Your goal? Based on you actions, you don't seem very committed to "your goal".
You ask about adding alsamixer to your menu. I provided you with
a .desktop file and instructions, but you couldn't be bothered to
use them.
Run these commands:
printf '#!/bin/sh\n\namixer set "Master" 23 unmute\n' > UnMute
chmod 755 UnMute
You now have an executable script called UnMute that will set
the master volume at 74% and make sure it's not muted.
Place the script in your systems path (~/local/bin/, /usr/local/bin/, /usr/bin/,
whatever) and decide where to call it from. Or copy the contents and add
them to one of your startup scripts. Or create an extension.
Just remember, alsa has to be configured before you can set the volume.