I'm trying to use mt SONY MDR-XB950BT headphones on Ubuntu 16.04 but not having any luck. I've managed to get them connected but it doesn't seem like I can actually listen to music/videos out of them. I tried setting the audio output to the headphones, but sound keeps coming out of the speakers instead. I also installed Pulse Audio Volume Control, but that doesn't seem to make a difference. I briefly managed to get it so that the test sound would play through the headphones, but when I tried to watch an online video, the video wouldn't even play until I changed the sound output device.
Does anyone have any advice/experience with this kind of thing? Any help would be greatly appreciated.