i have external usb speakers that kde audio volume settings can see. Ive set my usb speakers as default, however the sound continues to come from the laptop speakers. These speakers work fine under regular ubuntu 16.04. Ive tried forcing audio on all sound devices, and this does nothing also...
Move in the applet the application via drag and drop to the usb speakers device. Does it work afterwards?
I cant seemt o find any way to drag and drop. What I have found is to right click volume icon > audio volume settings window opens > audio volume > output device > configure the default device, and disable the other devices