Probably this question has already been answered somewhere, but I could not find it.
The situation: I am on Ubuntu 15.10, on a laptop.
I have a secondary bluetooth speakers system, on which I redirect some output (mainly the music).
I can control the volume with pactl
with
pactl -- set-sink-volume bluez_sink.00_18_91_65_D8_6D +5%
pactl -- set-sink-volume bluez_sink.00_18_91_65_D8_6D -5%
and having associated this to some keyboard shortcuts I can increase and decrease it like if it'd be local.
This works fine but, unlike for the main output (the internal audio card), using this command does not produce a notification with the actual volume level.
So, how can I produce the notification with the changing icon and the bar for the volume, like Ubuntu does?
Should I use notify-send
? With which parameters?
It should not be a "normal" notification, because it has to "stick" there when the volume changes and just adapt the bar...