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[Adalberto <adacaccia@xxxxxxxxx>]

Hi,
the 3.16rc1 kernel test I did for my other bug (https://bugs.launchpad.net/bugs/1330637), fixed both issues!
Now pressing Fn+Left/Right works as expected, reducing/increasing LCD brightness!
Someone please explain me how to close a bug, so I'll be glad to close it myself!
This bug should also be tagged as to signal 3.16rc1 worked while 3.15 didn't. 
Adalberto

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https://bugs.launchpad.net/bugs/1330640

Title:
  Ubuntu 14.04 on Acer TravelMate P253: LCD screen brightness always at
  maximum level

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Hi,
  on my new Acer TravelMate P253 notebook, with ubuntu 14.04 desktop I can't modify LCD screen brghtness: by pressing the normal key combination for this function (Fn+Left / Fn+Right) the screen brightness applet correctly shows up on the screen, and its level correctly goes up and down when pressing the function keys, but nothing actually happens, and the screen alway stays at its maximum brightness.
  Thank you, your suggestions are always welcome.
  Adalberto
  --- 
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  adaca      2036 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=2cb12901-c875-489b-9b65-2faa464d351b
  InstallationDate: Installed on 2014-06-15 (1 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Acer TravelMate P253
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-29-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-29-generic N/A
   linux-backports-modules-3.13.0-29-generic  N/A
   linux-firmware                             1.127.2
  Tags:  trusty
  Uname: Linux 3.13.0-29-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 12/16/2013
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V2.21
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: BA51_HC_CR
  dmi.board.vendor: Acer
  dmi.board.version: Type2 - Board Version
  dmi.chassis.type: 10
  dmi.chassis.vendor: Insyde Corp.
  dmi.chassis.version: V2.21
  dmi.modalias: dmi:bvnInsydeCorp.:bvrV2.21:bd12/16/2013:svnAcer:pnTravelMateP253:pvrV2.21:rvnAcer:rnBA51_HC_CR:rvrType2-BoardVersion:cvnInsydeCorp.:ct10:cvrV2.21:
  dmi.product.name: TravelMate P253
  dmi.product.version: V2.21
  dmi.sys.vendor: Acer
  --- 
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  adaca      2036 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=2cb12901-c875-489b-9b65-2faa464d351b
  InstallationDate: Installed on 2014-06-15 (1 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Acer TravelMate P253
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-29-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-29-generic N/A
   linux-backports-modules-3.13.0-29-generic  N/A
   linux-firmware                             1.127.2
  Tags:  trusty
  Uname: Linux 3.13.0-29-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 12/16/2013
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V2.21
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: BA51_HC_CR
  dmi.board.vendor: Acer
  dmi.board.version: Type2 - Board Version
  dmi.chassis.type: 10
  dmi.chassis.vendor: Insyde Corp.
  dmi.chassis.version: V2.21
  dmi.modalias: dmi:bvnInsydeCorp.:bvrV2.21:bd12/16/2013:svnAcer:pnTravelMateP253:pvrV2.21:rvnAcer:rnBA51_HC_CR:rvrType2-BoardVersion:cvnInsydeCorp.:ct10:cvrV2.21:
  dmi.product.name: TravelMate P253
  dmi.product.version: V2.21
  dmi.sys.vendor: Acer

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