According to the log in the #1, the bluetooth sound card is not in the pulseaudio.
Default Sink: alsa_output.pci-0000_00_1f.3.analog-stereo -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1899310 Title: the bluetooth headphone, although connected, the sound comes out of the notebook speakers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1899310/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
