Questions[indicator-sound](ubuntu)

I installed xubuntu-desktop on a 12.04 Ubuntu upgrade after finding Gnome3 lacking. I've mostly been happy, but I've found an odd and frustrating bug. My laptop has two sound 'outputs' - an HDMI-out plug I never use, and the onboard speakers/headphones. For some reason, the hardware keys have been mapped to the HDMI output, even if I set it as 'fallback' in pavucontrol, and notify-osd only displays changes in the HDMI output (though the panel indicator volume control controls onboard sound). I'd ideally like both hardware keys and notify-osd to be looking at the onboard sound, though if I can't get notify-osd it's an acceptable loss. Having to click through a bunch of stuff to change volume is driving me crazy, though.

Googling suggested that it /may/ be a Pulseaudio/ALSA conflict, but the hardware keys seem to change at least indicated volume in pavucontrol for HDMI as expected (I don't have an HDMI cable to test actual sound output)

I use Xubuntu. Recently I removed all Ubuntu/Unity related packages in the hope to have a more responsive and less cluttered system.

Before I removed Ubuntu/Unity packages following using this command.

After the removing of the packages the program thats starts when selecting 'Sound Settings...' is a different one than it was before when Unity was installed.

As I have a bluetooth speaker I connect to I would like to have the 'old' sound settings program back. The latter enabled me to select the bluetooth speaker as output.

I did install sudo apt-get install gnome-control-center and the sound menu became the old one again. Good but once I've connected my bluetooth speakers via the bluetooth indicator in the panel there is still no speaker to select as output.

What package do I need to install?

The sound indicator icon turns blue sometimes:

What does this mean?

how to remove installed Xnoise, rhytmbox on my sound indicator? I am not using these 2 music player anymore I want to remove it

I'm not looking for recommendations on what music player I should use. I would simply like to know which Music players use Ubuntu's new sound menu. The only two I know of for sure are Banshee and Rhythmbox. Maybe Amarok does too? Are there any outside of these?