Public bug reported:

Using artful kernel 4.12.0-13.14, Bluetooth audio works great.

Upgrading to artful kernel 4.13.0-11.12, there are severe Bluetooth
audio issues which have manifested in a variety of weird ways:

1) Playback would stall after 10-20 seconds
2) Upon removing the device and attempting to redo pairing, no devices could be 
found to pair with
3) After the device ended up reverting to low quality mono HSP mode, it could 
not be switched back to A2DP

This is all rather vague - sorry - but it felt better to get notice of
this regression into the bugtracker sooner rather than later.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-image-4.13.0-11-generic 4.13.0-11.12
ProcVersionSignature: Ubuntu 4.13.0-11.12-generic 4.13.1
Uname: Linux 4.13.0-11-generic x86_64
ApportVersion: 2.20.7-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  maxb       2091 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Sun Sep 24 21:24:00 2017
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=635db8ca-b352-4622-87eb-08f74460324b
InstallationDate: Installed on 2016-08-16 (404 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: HP HP Spectre Notebook
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-11-generic 
root=UUID=4989886a-f95e-4802-ab51-dcbf53167aeb ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.13.0-11-generic N/A
 linux-backports-modules-4.13.0-11-generic  N/A
 linux-firmware                             1.168
SourcePackage: linux
UpgradeStatus: Upgraded to artful on 2017-08-31 (23 days ago)
dmi.bios.date: 02/21/2017
dmi.bios.vendor: Insyde
dmi.bios.version: F.31
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 81A0
dmi.board.vendor: HP
dmi.board.version: 48.54
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: 
dmi:bvnInsyde:bvrF.31:bd02/21/2017:svnHP:pnHPSpectreNotebook:pvrType1ProductConfigId:rvnHP:rn81A0:rvr48.54:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV G=N L=CON B=HP S=SPT
dmi.product.name: HP Spectre Notebook
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug artful

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https://bugs.launchpad.net/bugs/1719210

Title:
  Bluetooth audio to A2DP headset no longer works following upgrade from
  4.12 to 4.13 in artful

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Using artful kernel 4.12.0-13.14, Bluetooth audio works great.

  Upgrading to artful kernel 4.13.0-11.12, there are severe Bluetooth
  audio issues which have manifested in a variety of weird ways:

  1) Playback would stall after 10-20 seconds
  2) Upon removing the device and attempting to redo pairing, no devices could 
be found to pair with
  3) After the device ended up reverting to low quality mono HSP mode, it could 
not be switched back to A2DP

  This is all rather vague - sorry - but it felt better to get notice of
  this regression into the bugtracker sooner rather than later.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: linux-image-4.13.0-11-generic 4.13.0-11.12
  ProcVersionSignature: Ubuntu 4.13.0-11.12-generic 4.13.1
  Uname: Linux 4.13.0-11-generic x86_64
  ApportVersion: 2.20.7-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  maxb       2091 F.... pulseaudio
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Sep 24 21:24:00 2017
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=635db8ca-b352-4622-87eb-08f74460324b
  InstallationDate: Installed on 2016-08-16 (404 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  MachineType: HP HP Spectre Notebook
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-11-generic 
root=UUID=4989886a-f95e-4802-ab51-dcbf53167aeb ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.13.0-11-generic N/A
   linux-backports-modules-4.13.0-11-generic  N/A
   linux-firmware                             1.168
  SourcePackage: linux
  UpgradeStatus: Upgraded to artful on 2017-08-31 (23 days ago)
  dmi.bios.date: 02/21/2017
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.31
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: 81A0
  dmi.board.vendor: HP
  dmi.board.version: 48.54
  dmi.chassis.type: 10
  dmi.chassis.vendor: HP
  dmi.chassis.version: Chassis Version
  dmi.modalias: 
dmi:bvnInsyde:bvrF.31:bd02/21/2017:svnHP:pnHPSpectreNotebook:pvrType1ProductConfigId:rvnHP:rn81A0:rvr48.54:cvnHP:ct10:cvrChassisVersion:
  dmi.product.family: 103C_5335KV G=N L=CON B=HP S=SPT
  dmi.product.name: HP Spectre Notebook
  dmi.product.version: Type1ProductConfigId
  dmi.sys.vendor: HP

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