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[Sayantan Das <1351833@xxxxxxxxxxxxxxxxxx>]

apport information

** Attachment added: "ProcEnviron.txt"
   https://bugs.launchpad.net/bugs/1351833/+attachment/4168556/+files/ProcEnviron.txt

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https://bugs.launchpad.net/bugs/1351833

Title:
  [Lenovo FLex 2] Display backlight does not reduce after checking 'Dim
  screen to save power'

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  I am using Ubuntu 14.04.1 LTS  on Lenovo FLex 2. The laptop display backlight does not reduce even after selecting 'Dim screen to save power'  in the Battery Setttings.
  --- 
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  sayantan   2009 F.... pulseaudio
   /dev/snd/controlC1:  sayantan   2009 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=ccdc92e5-9c8d-4e92-93d6-a300e775615b
  InstallationDate: Installed on 2014-07-28 (5 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 04f3:0333 Elan Microelectronics Corp. 
   Bus 001 Device 003: ID 0bda:b728 Realtek Semiconductor Corp. 
   Bus 001 Device 002: ID 5986:055e Acer, Inc 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 20404
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic.efi.signed root=UUID=0705e595-a4d7-4cc8-8976-e8692f30f49e ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-32-generic N/A
   linux-backports-modules-3.13.0-32-generic  N/A
   linux-firmware                             1.127.5
  Tags:  trusty
  Uname: Linux 3.13.0-32-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 03/21/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: A0CN21WW
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Lenovo Flex 2-14
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900059 Std
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo Flex 2-14
  dmi.modalias: dmi:bvnLENOVO:bvrA0CN21WW:bd03/21/2014:svnLENOVO:pn20404:pvrLenovoFlex2-14:rvnLENOVO:rnLenovoFlex2-14:rvr31900059Std:cvnLENOVO:ct10:cvrLenovoFlex2-14:
  dmi.product.name: 20404
  dmi.product.version: Lenovo Flex 2-14
  dmi.sys.vendor: LENOVO

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