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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Did this issue occur in a previous version of Ubuntu, or is this a new
issue?

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.18 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.18-rc4-vivid/

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1392583

Title:
  bluetooth mouse frequently times out

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I'm using a Razor Orochi 2013 mouse with my Dell XPS13 laptop via
  bluetooth on Ubuntu 14.10, and have noticed a seeming increase in the
  frequency of the timeouts I'm seeing.

  The symptoms are when I don't use my mouse for a while, it seems to go
  to sleep, and reasonably frequently when I go to use it again, it
  won't wake up for a while, and I see the following in my kernel logs:

    [Nov14 14:33] Bluetooth: hci0 command 0x0405 tx timeout

  The solution I've ended up using to get it working again is to stop
  the bluetooth service, rmmod the appropriate modules (btusb, hidp,
  bluetooth etc), reload them and then restart bluetooth.  Sometimes
  even this isn't sufficient and it takes a bit to recover.

  Please let me know if you need any further information.

  Kernel version:
  $ uname -r
  3.16.0-24-generic

  Ubuntu version:
  $ lsb_release -rd
  Description:	Ubuntu 14.10
  Release:	14.10

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-24-generic 3.16.0-24.32
  ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4
  Uname: Linux 3.16.0-24-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  bradm      4079 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Fri Nov 14 14:31:33 2014
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=18b9df48-fd12-4eb7-a0e6-351c4ca43c83
  InstallationDate: Installed on 2013-08-19 (451 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: Dell Inc. Dell System XPS L322X
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-24-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-24-generic N/A
   linux-backports-modules-3.16.0-24-generic  N/A
   linux-firmware                             1.138
  SourcePackage: linux
  UpgradeStatus: Upgraded to utopic on 2014-10-10 (35 days ago)
  dmi.bios.date: 05/15/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A09
  dmi.board.name: 0PJHXN
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA09:bd05/15/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn0PJHXN:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System XPS L322X
  dmi.sys.vendor: Dell Inc.

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