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[Launchpad Bug Tracker <1542564@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 4.4.0-22.39

---------------
linux (4.4.0-22.39) xenial; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
    - LP: #1578721

  * LP: #1578705
    - bpf: fix double-fdput in replace_map_fd_with_map_ptr()

 -- Kamal Mostafa <kamal@xxxxxxxxxxxxx>  Thu, 05 May 2016 09:30:58 -0700

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

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https://bugs.launchpad.net/bugs/1542564

Title:
  Atheros AR9462 Bluetooth cannot detect other devices

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released

Bug description:
  Recently upgraded WiFi modules, on Dell Inspiron 15R and Dell Inspiron
  660s, to Qualcomm Atheros AR9462 WiFi/Bluetooth combo. WiFi worked,
  OOB, with no problems. OS detects Bluetooth device, shows the
  indicator icon, and can be turned on and off.

  lsusb: Bus 003 Device 003: ID 13d3:3395 IMC Networks
  hcitool dev: Devices: hci0 6C:71:D9:0D:7D:3A

  This issue exists in both Ubuntu 14.04 with linux-
  kernel-3.19.49-generic and Ubuntu 15.10 with linux-
  kernel-4.2.0.28-generic. The above listed bluetooth device id is that
  same for both modules.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-28-generic 4.2.0-28.33
  ProcVersionSignature: Ubuntu 4.2.0-28.33-generic 4.2.8-ckt3
  Uname: Linux 4.2.0-28-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  christopher   1602 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Fri Feb  5 18:43:17 2016
  HibernationDevice: RESUME=UUID=785017a9-d9e9-410f-a3ec-8ad919bbe649
  InstallationDate: Installed on 2016-02-05 (0 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  MachineType: Dell Inc. Inspiron 5521
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-28-generic.efi.signed root=UUID=3ef5c282-df31-4e86-8aaf-dc4c3b3e6259 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-28-generic N/A
   linux-backports-modules-4.2.0-28-generic  N/A
   linux-firmware                            1.149.3
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/31/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A14
  dmi.board.name: 0K08H3
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: A14
  dmi.modalias: dmi:bvnDellInc.:bvrA14:bd07/31/2015:svnDellInc.:pnInspiron5521:pvrA14:rvnDellInc.:rn0K08H3:rvrA00:cvnDellInc.:ct8:cvrA14:
  dmi.product.name: Inspiron 5521
  dmi.product.version: A14
  dmi.sys.vendor: Dell Inc.

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