BT device is in the wrong mode / on the wrong profile. Solution is here: https://askubuntu.com/questions/889737/video-not- playing-in-web-browser-with-bluetooth-headphones-connected-how-can-i
wget https://gist.github.com/pylover/d68be364adac5f946887b85e6ed6e7ae/archive/d698974910bbb7d016ec0ad08c1bf41b4b524364.zip unzip d698974910bbb7d016ec0ad08c1bf41b4b524364.zip in there is a a2dp.py chmod +x a2dp.py Run the file (modify python3.5 to python3 if needed in the first line) when you have the device connected. Choose it from the list. It changes the profile, now everything works, the video is also running. What the reason is, I cant tell, but I can tell you that this solves it -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1589008 Title: Bluetooth freezing video playback In Ubuntu/Kubuntu 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1589008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs