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[Abhishek solanki <abhisheksolanki18@xxxxxxxxx>]

** Changed in: xorg (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/1516213

Title:
  Lowering  the brightness turns the monitor black in ubuntu 14.04

Status in xorg package in Ubuntu:
  Confirmed

Bug description:
  whenever the screen brigthness is lowered using the function key the monitor turns black when we are at the lowest point of brightness. This problem exists in ubuntu 14.04
  ---
  .tmp.unity.support.test.0:

  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroRelease: Ubuntu 14.04
  DistroVariant: ubuntu
  ExtraDebuggingInterest: I just need to know a workaround
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:0652]
     Subsystem: Dell Device [1028:0652]
  InstallationDate: Installed on 2015-11-05 (10 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: Dell Inc. Inspiron 3542
  Package: xorg 1:7.7+1ubuntu8
  PackageArchitecture: amd64
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic root=UUID=a56cc5c0-c833-4665-9362-5f43b50339d5 ro quiet splash acpi_backlight=vendor vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Tags:  trusty ubuntu compiz-0.9
  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: 08/05/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A04
  dmi.board.name: 0RK2KV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A04
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: Not Specified
  dmi.modalias: dmi:bvnDellInc.:bvrA04:bd08/05/2014:svnDellInc.:pnInspiron3542:pvrNotSpecified:rvnDellInc.:rn0RK2KV:rvrA04:cvnDellInc.:ct8:cvrNotSpecified:
  dmi.product.name: Inspiron 3542
  dmi.product.version: Not Specified
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Mon Nov 16 10:13:51 2015
  xserver.configfile: default
  xserver.errors:
   Failed to load module "nvidia" (module does not exist, 0)
   Failed to load module "nvidia" (module does not exist, 0)
   NOUVEAU(G0): [XvMC] Failed to initialize extension.
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                1110
   vendor                                     LGD
  xserver.version: 2:1.15.1-0ubuntu2

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