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[Stéphane Guillou <952694@xxxxxxxxxxxxxxxxxx>]

Doesn't the fact that the bug appears on three different machines reported here (Dell Inspiron N411Z, Dell Vostro 3750, HP Pavilion DM1) show that it is not a BIOS issue?
I still experience that on my HP Pavilion DM1, on which I just replaced Ubuntu by Linux Mint 17.2.

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Title:
  [Dell Inspiron 14z (N411z)] Toggling Bluetooth off also Disables Wifi
  Networking (Wifi Hardware Switched Off)

Status in Linux:
  Confirmed
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Expected Result:

  User goes to Bluetooth GUI and toggles Bluetooth off because they
  either are not using it or to conserve power

  Actual Result:

  User toggles Bluetooth off but same toggle also disables Wireless
  Networking which cannot be re-enabled without toggling bluetooth back
  on and rebooting.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: bluez 4.98-2ubuntu4
  ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
  Uname: Linux 3.2.0-18-generic x86_64
  ApportVersion: 1.94.1-0ubuntu2
  Architecture: amd64
  Date: Sun Mar 11 20:00:33 2012
  EcryptfsInUse: Yes
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  InterestingModules: bnep rfcomm btusb bluetooth
  MachineType: Dell Inc. Dell System Inspiron N411Z
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-18-generic root=UUID=ec6660ce-0cd1-4086-bd71-cccd72d07613 ro quiet splash vt.handoff=7
  SourcePackage: bluez
  UpgradeStatus: Upgraded to precise on 2012-03-12 (0 days ago)
  dmi.bios.date: 06/24/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A00
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 0VK06J
  dmi.board.vendor: Dell Inc.
  dmi.board.version: FAB1
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA00:bd06/24/2011:svnDellInc.:pnDellSystemInspironN411Z:pvr:rvnDellInc.:rn0VK06J:rvrFAB1:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System Inspiron N411Z
  dmi.sys.vendor: Dell Inc.
  hciconfig:
   hci0:	Type: BR/EDR  Bus: USB
   	BD Address: AC:72:89:44:9D:8B  ACL MTU: 310:10  SCO MTU: 64:8
   	UP RUNNING PSCAN 
   	RX bytes:1295 acl:0 sco:0 events:52 errors:0
   	TX bytes:717 acl:0 sco:0 commands:52 errors:0

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