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[Henry Xing <alps_xing@xxxxxxxxxxx>]

I've updated my BIOS to the latest, but the problem is still happening. Below is the BIOS information:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
A07
01/14/2015

And I have 2 Dell PC of the same model, both have this problem. This
only happens on 3.13.0-53. If revert to 3.13.0-52, they are both OK.

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https://bugs.launchpad.net/bugs/1456873

Title:
  3.13.0-53-generic breaks networking after 3-5 minutes

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Description:	Ubuntu 14.04.2 LTS
  Release:	14.04

  I did the usual update with the graphical updater, it asked me to
  reboot. I did, after logging back in things looked OK for a few short
  minutes then networking completely stopped.

  After several warm reboots and a cold reboot I saw it was still doing
  the same thing. I tried switching wired off and went to wireless,
  (edit) the wireless (I remembered later) did not work. Perhaps if I'd
  disabled/reenabled networking and switched to wireless fast it may
  have.

  I found that I could Disable networking then reenable and networking
  would work again for a few minutes.

  I finally booted into the previous kernel 3.13.0-52-generic and it's
  working since I'm here.

  This same hardware, no changes has worked for around 2 years without
  issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-52-generic 3.13.0-52.86
  ProcVersionSignature: Ubuntu 3.13.0-52.86-generic 3.13.11-ckt18
  Uname: Linux 3.13.0-52-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.10
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  diltonm    4731 F.... pulseaudio
   /dev/snd/controlC2:  diltonm    4731 F.... pulseaudio
   /dev/snd/controlC0:  diltonm    4731 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue May 19 23:48:20 2015
  MachineType: Hewlett-Packard h8-1520t
  ProcFB:

  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-52-generic root=UUID=ef1a04ba-1a00-46ec-b972-60b27d1aa52d ro quiet splash acpi_osi=Linux
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-52-generic N/A
   linux-backports-modules-3.13.0-52-generic  N/A
   linux-firmware                             1.127.12
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/17/2012
  dmi.bios.vendor: AMI
  dmi.bios.version: 8.14
  dmi.board.name: 2AD5
  dmi.board.vendor: PEGATRON CORPORATION
  dmi.board.version: 1.03
  dmi.chassis.asset.tag: 2MD30309RG
  dmi.chassis.type: 3
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnAMI:bvr8.14:bd12/17/2012:svnHewlett-Packard:pnh8-1520t:pvr1.00:rvnPEGATRONCORPORATION:rn2AD5:rvr1.03:cvnHewlett-Packard:ct3:cvr:
  dmi.product.name: h8-1520t
  dmi.product.version: 1.00
  dmi.sys.vendor: Hewlett-Packard

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