Comment 2 for bug 240623

The bug doesn't lie with alsactl or alsamixer[0] but rather what element in the mixer settings/volume control you're adjusting.

[0]You really shouldn't have to use `alsamixer -c0' or `pavucontrol' to adjust the volume, but it seems you have to until we clean up the mess, aka provide a unified way of setting global vs. application/stream volume.