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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

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** Changed in: linux (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1391545

Title:
  [Asus X553MA] Screen brightness control doesn't work

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  In System Settings / Brightness & Lock the brightness slider doesn't
  work with kernel 3.13.0-39-generic.

  The brightness slider control does work when using vanilla kernel
  3.17.2.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-39-generic 3.13.0-39.66
  ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
  Uname: Linux 3.13.0-39-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jamse      1476 F.... pulseaudio
  CurrentDesktop: Unity
  CurrentDmesg: [   30.236585] init: plymouth-upstart-bridge main process ended, respawning
  Date: Tue Nov 11 16:52:04 2014
  HibernationDevice: RESUME=UUID=2b9bf124-e148-4417-b73e-43726a565b1c
  InstallationDate: Installed on 2014-11-07 (3 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  Lsusb:
   Bus 001 Device 004: ID 04ca:3010 Lite-On Technology Corp. 
   Bus 001 Device 003: ID 04f2:b424 Chicony Electronics Co., Ltd 
   Bus 001 Device 002: ID 8087:07e6 Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. X553MA
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-39-generic.efi.signed root=UUID=33ef15f0-b76d-478a-b497-66cd13464760 ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-39-generic N/A
   linux-backports-modules-3.13.0-39-generic  N/A
   linux-firmware                             1.127.8
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/16/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: X553MA.204
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: X553MA
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX553MA.204:bd04/16/2014:svnASUSTeKCOMPUTERINC.:pnX553MA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX553MA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: X553MA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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