Little help.
Where on Ubuntu Mate do you set the default app that displays on the "Indicator Applet Complete" when you click the speaker/sound icon?
I have checked many settings and options. They are all set to Rhythmbox.
But Firefox is set and I have yet to figure out how to change that.
Alrighty then!
Thank you both for the assist.
Ubunutu Mate 20.04
Yes, Rhythmbox is set as the Preferred Application for "Multimedia Player".
Yep. The last player gets the focus+controls on the sound indicator.
But it was not working for Rhythmbox.
If I run VLC, it gets the focus+controls. If I then open an MP3 in Firefox, it returns to Firefox (last one used).
I removed/purged and reinstalled Rhythmbox. Now it works again. It now gets the focus+controls on the sound indicator.
One odd item, Rhythmbox installs two items that can be selected...
rhythmbox.desktop
rhythmbox-device.desktop
I changed the X-GNOME-FullName to "Rhythmbox Music Player (Device)" to differentiate it. If I select if for the default or preferred, it does not work as expected.
If I use rhythmbox-device, it opens Rhythmbox, but does not play the selected MP3.
I also found the d-conf settings... (these two do not exist on my system: org.freedesktop.MediaPlayer or org.mpris.MediaPlayer2)
.org.canonical.indicator.sound.interested-media-players (these show on the sound indicator).
['firefox.desktop', 'vlc.desktop', 'rhythmbox.desktop']
com.canonical.indicator.sound.preferred-media-players
[rhythmbox.desktop']
Again, thanks for the assist.
The fix was to remove+purge and reinstalled Rhythmbox.
Peace.
--RayJ