Hi! I had the same problem with JBL TUNE500BT Headphones on Ubuntu 20.04. I did a kernel update to 5.8.9-050809-generic version using ubuntu- mainline-kernel.sh script [1]. I also uninstalled ofono and ofono- phonesim which I installed earlier when trying to fix this problem and reverted any changes I did to the default.pa file. It seems to be working now, but audio quality is awful when using HSP/HFP, which is related to another bug [2]. I don't know if it's a good solution, but maybe it will help someone.
[1]: https://raw.githubusercontent.com/pimlie/ubuntu-mainline-kernel.sh/master/ubuntu-mainline-kernel.sh [2]: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1838151 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1576559 Title: Refused to switch profile to headset_head_unit: Not connected To manage notifications about this bug go to: https://bugs.launchpad.net/pulseaudio/+bug/1576559/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
