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[TARUNPRAKASHT <1320659@xxxxxxxxxxxxxxxxxx>]

Hi Christopher,

  Thanks for your valuable information. I was totally unaware the things which you have mentioned regarding the bug reporting.
As per your information, i have updated my BIOS version to available latest (2.55)

sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 
the output is as given below

HOET95WW (2.55 )
01/20/2014

Please inform me updates on the bug

Regards,
Tarun

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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1320659

Title:
  [Lenovo ThinkPad Edge E430] "thinkpad unsupported brightness
  interface" message is showing while booting up

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Recently I have upgraded to my ubuntu to 12.04LTS to 14.04LTS

  I am using a Thinkapd E430 Machine , Model 3254-T1Q

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-24-generic 3.13.0-24.47
  ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  tarunp     2026 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun May 18 21:18:35 2014
  HibernationDevice: RESUME=UUID=7769c1de-f761-42a1-841a-41dd723f7046
  InstallationDate: Installed on 2014-04-21 (26 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: LENOVO 3254T1Q
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=5d9a6cf6-1023-43f0-82b8-7df33d90132e ro acpi_osi=Linux quiet splash acpi_backlight=vendor vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/22/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: H0ET72WW (2.06 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 3254T1Q
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrH0ET72WW(2.06):bd10/22/2012:svnLENOVO:pn3254T1Q:pvrThinkPadEdgeE430:rvnLENOVO:rn3254T1Q:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 3254T1Q
  dmi.product.version: ThinkPad Edge E430
  dmi.sys.vendor: LENOVO

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