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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

** Also affects: linux (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Trusty)
       Status: New => In Progress

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

** Changed in: linux (Ubuntu Trusty)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

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https://bugs.launchpad.net/bugs/1400365

Title:
  Intel PRO/1000 network driver e1000e doesn't always regain connection

Status in HWE Next Project:
  Triaged
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Trusty:
  In Progress

Bug description:
  On our Dell E6440 laptops we found that the Wired network connection
  is sometimes not re-established when going from Wifi back to Ethernet,
  e.g. when booting without LAN and then putting the laptop back in its
  dock.

  The following upstream patch resolved this problem for us in Kubuntu
  14.04 LTS kernels 3.13.0-34-generic and 3.13.0-40-generic:

  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/patch/drivers/net/ethernet/intel/e1000e?id=b20a774495671f037e7160ea2ce8789af6b61533

  Please incorporate this patch in the Kubuntu kernel so that the
  /lib/modules/3.13.0-XX-
  generic/kernel/drivers/net/ethernet/intel/e1000e/e1000e.ko module
  doesn't have to rebuilt manually every time we follow a kernel update.
  Thanks.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-40-generic 3.13.0-40.69 [modified: lib/modules/3.13.0-40-generic/kernel/drivers/net/ethernet/intel/e1000e/e1000e.ko]
  ProcVersionSignature: Ubuntu 3.13.0-40.69-generic 3.13.11.10
  Uname: Linux 3.13.0-40-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  homa       2299 F.... pulseaudio
                        homa       2573 F.... pulseaudio
   /dev/snd/controlC0:  homa       2299 F.... pulseaudio
                        homa       2573 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Mon Dec  8 16:22:48 2014
  HibernationDevice: RESUME=UUID=df0741f0-a429-48cf-9eaf-0b9a31bb32ea
  InstallationDate: Installed on 2014-12-05 (3 days ago)
  InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.1)
  MachineType: Dell Inc. Latitude E6440
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-40-generic root=UUID=63b4f79f-bbff-4166-9be1-3adf4ea9708b ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-40-generic N/A
   linux-backports-modules-3.13.0-40-generic  N/A
   linux-firmware                             1.127.10
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/18/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A05
  dmi.board.name: 0YX2X3
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA05:bd02/18/2014:svnDellInc.:pnLatitudeE6440:pvr01:rvnDellInc.:rn0YX2X3:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E6440
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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