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[Launchpad Bug Tracker <1582213@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package pulseaudio - 1:8.0-0ubuntu3.3

---------------
pulseaudio (1:8.0-0ubuntu3.3) xenial; urgency=medium

  [Luke Yelavich, Konrad Zapałowicz]
  * Fixed multiple interrelated problems with using Bluetooth audio (A2DP),
    where users would experience some combination of:
    - Bluetooth headset/speakers listed but not selectable in Sound settings
      (LP: #1283003)
    - [regression] Bluetooth audio no longer supports A2DP (stuck in HSP/HFP
      mode) (LP: #1438510)
    - [xenial] Bluetooth device doesn't play any sound in A2DP mode unless set
      to HSP/HFP first (LP: #1582213)
  * Specific patches from upstream used to address the above problems:
    - 0103-bluetooth-Add-support-for-automatic-switch-between-h.patch
    - 0104-bluetooth-Add-support-for-automatic-switch-bluez5.patch
    - 0106-bluetooth-Add-optional-heuristic-for-switching-betwe.patch
      . Backport from upstream to fix a bug in Xenial where an incorrect
        audio profile is applied for a headset connected over Bluetooth
        making using it impossible.
    - 0105-bluetooth-policy-do-A2DP-profile-restoring-a-bit-lat.patch
      . Fix a crash that happens if the BT headset is the only non-monitor
        source in the system and the last "phone" stream dies.
    - 0700-pulsecore-add-new-card-profile-hook.patch
      . Backport from upstream (commit 7b6260140149) to allow for correct
        profile selection.
    - 0701-bluetooth-bluez5-wait-for-all-profiles-to-connect.patch
      . Backport from upstream waiting for all profiles to connect before
        creating a card.

 -- Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>  Tue, 23 May 2017
16:24:14 +0800

** Changed in: pulseaudio (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1582213

Title:
  [xenial] Bluetooth device doesn't play any sound in A2DP mode unless
  set to HSP/HFP first

Status in bluez package in Ubuntu:
  Invalid
Status in pulseaudio package in Ubuntu:
  Fix Released
Status in pulseaudio source package in Xenial:
  Fix Released

Bug description:
  [Impact]
  Bluetooth device doesn't play any sound in A2DP mode unless set to HSP/HFP first. A2DP is the high quality profile used for Bluetooth speakers and music in general.

  [Test Case]
  1. Pair a Bluetooth audio device with Ubuntu.
  2. Verify in Sound settings you have it set to A2DP mode.
  3. Turn off and then on the Bluetooth device.
  4. Verify the device has reconnected and if not, force it to in the Bluetooth indicator menu.
  5. Open Sound settings again, select the device and verify it's reappeared in A2DP mode.
  6. Click 'Test Sound'.
  Expected: Sound can be heard from the Bluetooth device.

  [Regression Potential]
  Low. The SRU focuses on Bluetooth logic in pulseaudio, so that is the main area affected. A combination of related A2DP bugs in pulseaudio in xenial means it is difficult to get working at all without this patch. So highly unlikely Bluetooth audio support could get worse. Since pulseaudio itself is being modified there is always a regression potential in support for other audio devices, but several audio devices have been tested and all continue to work well with the patch.

  [Other notes]
  Related to bug 1283003 and bug 1438510. Possibly others too.

  Please note that Bluetooth and Bluetooth audio support in xenial is
  still not perfect. This SRU only aims to address a few of the most
  troublesome issues. Please consider the fact that this is an
  incremental improvement and some people are still likely to experience
  some bugs related to pulseaudio and Bluetooth, even after this SRU.

  The patch was authored by Luke Yelavich with help from Konrad
  Zapałowicz. And it has received further testing over the past two
  months by Konrad, Jim Hodapp and Daniel van Vugt. The debdiff proposed
  here only changes the changelog wording from Luke's original PPA.

  [Original Description]
  I have a Sennheiser MM 450-X headset.

  In 15.10, connection & playback was straightforward.

  In 16.04, the headset connects, and shows up as default playback
  device on `pavucontrol`, but there is no sound.

  A functional workaround is to, after having connected it, to go the
  `Configuration` tab, and in the `Profile` dropdown, to choose `...
  HSP/HFP`, which will make them play as expected (but in low quality),
  then switch to `... A2DP Sink` (they will play in high quality).

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: pulseaudio-module-bluetooth 1:8.0-0ubuntu3
  ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  myuser    2936 F.... pulseaudio
   /dev/snd/controlC2:  myuser    2936 F.... pulseaudio
   /dev/snd/controlC0:  myuser    2936 F.... pulseaudio
  Date: Mon May 16 14:18:58 2016
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2016-03-11 (66 days ago)
  InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160224)
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  SourcePackage: pulseaudio
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/22/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: F5
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: F2A88XN-WIFI
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF5:bd04/22/2015:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnF2A88XN-WIFI:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To be filled by O.E.M.
  dmi.product.version: To be filled by O.E.M.
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.

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