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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

** Changed in: linux (Ubuntu)
   Importance: Medium => Low

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https://bugs.launchpad.net/bugs/1242292

Title:
  8086:0046 Backlight control keys doesn't work with Acer Aspire 5733Z-
  P623G32Mikk

Status in The Linux Kernel:
  Unknown
Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  My Acer Aspire 5733Z cannot change brightness by hotkeys or by System settings menu by default. The following parameter shuts down WiFi and modem:
  GRUB_CMDLINE_LINUX="acpi=off"

  WORKAROUND: The following parameters work but no pop-up message for scale is displayed:
  GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor"

  ---
  ApportVersion: 2.12.5-0ubuntu2
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  isshin     1474 F.... pulseaudio
                        isshin     2078 F.... pulseaudio
  DistroRelease: Ubuntu 13.10
  InstallationDate: Installed on 2013-10-20 (0 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release i386 (20131016.1)
  MachineType: Acer Aspire 5733Z
  MarkForUpload: True
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=746dde1a-b219-49fa-ab1d-f9c1ca35c54d ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-12-generic N/A
   linux-backports-modules-3.11.0-12-generic  N/A
   linux-firmware                             1.116
  Tags:  saucy
  Uname: Linux 3.11.0-12-generic i686
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 08/13/2012
  dmi.bios.vendor: Acer
  dmi.bios.version: V1.10
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Aspire 5733Z
  dmi.board.vendor: Acer
  dmi.board.version: V1.10
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.10
  dmi.modalias: dmi:bvnAcer:bvrV1.10:bd08/13/2012:svnAcer:pnAspire5733Z:pvrV1.10:rvnAcer:rnAspire5733Z:rvrV1.10:cvnAcer:ct10:cvrV1.10:
  dmi.product.name: Aspire 5733Z
  dmi.product.version: V1.10
  dmi.sys.vendor: Acer

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