[Bug 1759628] Re: bluez regression: Bluetooth audio fails to reconnect after resume

[Daniel van Vugt]

** Tags added: patch

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Title:
   bluez regression: Bluetooth audio fails to reconnect after resume

Status in bluez package in Ubuntu:
  Fix Released
Status in bluez package in Fedora:
  Fix Released
Status in Suse:
  Fix Released

Bug description:
  [Impact]

  Users of Bluetooth audio have no sound after they suspend and resume
  the system.

  [Test Case]

   1. Connect to Bluetooth audio device
   2. Suspend & Resume
   3. Reconnect to Bluetooth device.

  [Regression Potential]

  Low. Although common Bluetooth code is modified in the fix, it has
  been released as a patch in other distros for some time already.

  [Other Info]

  Already released to cosmic as part of bluez version 5.50.

  This regression in bluez 5.48 has already been identified and fixed
  upstream. Report is here <https://marc.info/?l=linux-
  bluetooth&m=151616078627045&w=2> and patch is here
  <https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=d6e9539e31c6bb5afd39ec6f09c518d232e6345d>.

  Syslog reports messages as follows when this issue is happening (I have replaced my device's MAC address with [MAC]):
  Mar 28 12:34:29 cue pulseaudio[1859]: [pulseaudio] bluez5-util.c: Information about device /org/bluez/hci0/dev_[MAC] is invalid
  Mar 28 12:34:29 cue bluetoothd[984]: Endpoint replied with an error: org.bluez.Error.InvalidArguments
  Mar 28 12:34:33 cue pulseaudio[1859]: [pulseaudio] bluez5-util.c: Information about device /org/bluez/hci0/dev_[MAC] is invalid
  Mar 28 12:34:33 cue bluetoothd[984]: Endpoint replied with an error: org.bluez.Error.InvalidArguments

  Workaround is to run sudo systemctl restart bluetooth after resume.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: bluez 5.48-0ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
  Uname: Linux 4.15.0-12-generic x86_64
  ApportVersion: 2.20.9-0ubuntu1
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Wed Mar 28 12:37:11 2018
  InstallationDate: Installed on 2018-03-23 (5 days ago)
  InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180306.1)
  InterestingModules: rfcomm bnep btusb bluetooth
  MachineType: Hewlett-Packard HP ProBook 640 G1
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-12-generic root=/dev/mapper/internal-root ro quiet splash vt.handoff=1
  SourcePackage: bluez
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2018
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: L78 Ver. 01.43
  dmi.board.name: 2101
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 16.3C
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrL78Ver.01.43:bd01/25/2018:svnHewlett-Packard:pnHPProBook640G1:pvrA3009DD10303:rvnHewlett-Packard:rn2101:rvrKBCVersion16.3C:cvnHewlett-Packard:ct10:cvr:
  dmi.product.family: 103C_5336AN G=N L=BUS B=HP S=PRO
  dmi.product.name: HP ProBook 640 G1
  dmi.product.version: A3009DD10303
  dmi.sys.vendor: Hewlett-Packard
  hciconfig:
   hci0:	Type: Primary  Bus: USB
    BD Address: 80:00:0B:C7:4D:1C  ACL MTU: 310:10  SCO MTU: 64:8
    UP RUNNING PSCAN
    RX bytes:5025 acl:32 sco:0 events:202 errors:0
    TX bytes:5785 acl:32 sco:0 commands:103 errors:0

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