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[Francis Brown <1381906@xxxxxxxxxxxxxxxxxx>]

[ 8996.779551] Bluetooth: Error in firmware loading err = -110,len = 448, size = 1906
[ 8996.779570] Bluetooth: Loading sysconfig file failed
[ 8996.779587] ath3k: probe of 2-3:1.0 failed with error -110

That is a common problem with a range of these ath3k cards. I have one.
Have a search of previous bug reports, but there seems a lack of any
real  solution for the majority of them.

Some say it can be a conflict on loading od usb3 driver, and/or an
alternative firmware loading method is needed but has not been adopted.
Bit of a mess really.

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https://bugs.launchpad.net/bugs/1381906

Title:
  [Dell Latitude E5550] Atheros Bluetooth [0cf3:e005] gone after suspend

Status in HWE Next Project:
  New
Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  CID: 201406-15271 Dell Latitude E5550

  After S3, the Bluetooth indicator will grey out (stays at the "OFF"
  state), but rfkill show it's not blocked.

  Even enable it by changing it to the "ON" state does not help, can't
  find any device with it, hciconfig return nothing.

  Error message could be found in the dmesg output:
  [ 8996.779551] Bluetooth: Error in firmware loading err = -110,len = 448, size = 1906
  [ 8996.779570] Bluetooth: Loading sysconfig file failed

  More important part is that after reboot, the Bluetooth will disappear
  as it never exist, won't be listed in lsusb and dmesg.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-37-generic 3.13.0-37.64
  ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7
  Uname: Linux 3.13.0-37-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1726 F.... pulseaudio
   /dev/snd/controlC1:  ubuntu     1726 F.... pulseaudio
  CRDA:
   country TW:
   	(2402 - 2472 @ 40), (3, 27)
   	(5270 - 5330 @ 40), (3, 17), DFS
   	(5735 - 5815 @ 40), (3, 30)
  CurrentDesktop: Unity
  Date: Thu Oct 16 00:41:31 2014
  HibernationDevice: RESUME=UUID=02cbc1f1-a261-484c-8fc2-05b68f73446d
  InstallationDate: Installed on 2014-10-09 (6 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: Dell Inc. Latitude E5550
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-37-generic root=UUID=d3b20ae5-9ff8-49b3-b640-1c6a9f264710 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-37-generic N/A
   linux-backports-modules-3.13.0-37-generic  N/A
   linux-firmware                             1.127.7
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/25/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: T43
  dmi.board.name: 0141B2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: X02
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrT43:bd07/25/2014:svnDellInc.:pnLatitudeE5550:pvr01:rvnDellInc.:rn0141B2:rvrX02:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E5550
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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