I'm not sure if this helps, but I see pulseaudio logging an "Operation Not Authorized" message when things do not work:
Apr 26 01:46:52 zenbook pulseaudio[3346]: [pulseaudio] module-bluez5-device.c: Acquiring transport /org/bluez/hci0/dev_20_74_CF_02_DB_F2/fd0 Apr 26 01:46:52 zenbook pulseaudio[3346]: [pulseaudio] bluez5-util.c: Transport TryAcquire() failed for transport /org/bluez/hci0/dev_20_74_CF_02_DB_F2/fd0 (Operation Not Authorized) Whereas after doing the switch-to-HSP, disconnect, reconnect, switch-to- A2DP dance to make it work, the equivalent logging is: Apr 26 01:52:40 zenbook pulseaudio[3346]: [pulseaudio] module-bluez5-device.c: Acquiring transport /org/bluez/hci0/dev_20_74_CF_02_DB_F2/fd2 Apr 26 01:52:40 zenbook bluetoothd[808]: /org/bluez/hci0/dev_20_74_CF_02_DB_F2/fd2: fd(23) ready Apr 26 01:52:40 zenbook pulseaudio[3346]: [pulseaudio] module-bluez5-device.c: Transport /org/bluez/hci0/dev_20_74_CF_02_DB_F2/fd2 acquired: fd 46 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/1438510 Title: [REGRESSION] bluetooth headset no longer supports a2dp Status in bluez package in Ubuntu: Confirmed Status in pulseaudio package in Ubuntu: Confirmed Status in bluez source package in Vivid: Confirmed Status in pulseaudio source package in Vivid: Confirmed Bug description: Just installed 15.04 fresh from the latest ISO (beta2). I'm bummed to see my bluetooth headset (Bose Soundlink overear) seems to have regressed in functionality. In 14.10, I was able to set the output profile either to a2dp or hsp/hfp (telephony duplex). In 15.04, it only works in telephony duplex mode. I can't get high fidelity sound playback to work at all. This thread seems to be related, though the workaround within did not solve the problem for me: https://bbs.archlinux.org/viewtopic.php?id=194006 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1438510/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
