sound plays on speakers even when sound indicator is set to zero

[Rick Spencer]

Steps:

1. Turn sound via sound indicator to zero
2. Open the music app and start playing a song

Result:
the song plays

Expected:
You cannot hear the song

Note that if you adjust the volume via the hardware buttons, the indicator visibly changes, but the volume does not.

This is image 185 on Krilin

[Rick Spencer (rick-rickspencer3)]

Note that when earbuds are used, the sound does not play when set to zero

[Rick Spencer (rick-rickspencer3)]

Also note that after removing the earbuds, the sound indicator works as expected

[Thomas Strehl (strehl-t)]

There is something fishy ongoing indeed. It seems there are multiple states involved that are not properly resolved: music playing state has different volume level than music paused. When music is playing indicator displays e.g. two volume bars, when pressing the pause button it switches back to e.g. 0 bars, resume playing and the indicator displays two bars again.

[Ted Gould (ted)]

I'm going to mark this as "Opinion" because I think the behavior described here is by design. There is a matrix of media profiles and outputs that effects *which* volume is used. Basically media play back and alarms (default when media isn't playing) have different volumes. So when medias not playing, by pressing your hardware keys you're adjusting the alarm volume. When it is playing, you're adjusting the multimedia volume. The indicator shows the current volume profile being used.

https://wiki.ubuntu.com/Sound#Indicator_and_menu