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[Bug 1173352] Re: [ThinkPad W530 2447] Brightness keys don't work as expected on

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: "Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>
Date: Mon, 29 Jul 2013 00:15:38 -0000
Reply-to: Bug 1173352 <1173352@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Erik Nasaroff, this bug report is being closed due to your last comment
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1173352/comments/6
regarding this being fixed with a BIOS update. For future reference you
can manage the status of your own bugs by clicking on the current status
in the yellow line and then choosing a new status in the revealed drop
down box. You can learn more about bug statuses at
https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time
to report this bug and helping to make Ubuntu better. Please submit any
future bugs you may find.

** Changed in: linux (Ubuntu)
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/1173352

Title:
  [ThinkPad W530 2447] Brightness keys don't work as expected on

Status in “linux” package in Ubuntu:
  Invalid

Bug description:
  First I could only change the brightness level by one step. (From 100% to 95%.)
  After I added 'GRUB_CMDLINE_LINUX="acpi_backlight=vendor"' in /etc/default/grub the keys work as expected, but the notification showing the brightness level displays the wrong value.  Attached a picture with max brightness.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-19-generic 3.8.0-19.29
  ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
  Uname: Linux 3.8.0-19-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  eeroz      2273 F.... pulseaudio
  CRDA:
   country DE:
   	(2400 - 2483 @ 40), (N/A, 20)
   	(5150 - 5250 @ 40), (N/A, 20), NO-OUTDOOR
   	(5250 - 5350 @ 40), (N/A, 20), NO-OUTDOOR, DFS
   	(5470 - 5725 @ 40), (N/A, 26), DFS
  Date: Fri Apr 26 21:54:04 2013
  HibernationDevice: RESUME=UUID=c4d094e7-893d-4e8a-a869-fa08eb2b2d9c
  InstallationDate: Installed on 2012-12-23 (123 days ago)
  InstallationMedia: This
  MachineType: LENOVO 24472AG
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-19-generic root=UUID=b08558b9-9514-435a-8b9c-c012eb0fd91b ro acpi_backlight=vendor quiet splash i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1 vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-19-generic N/A
   linux-backports-modules-3.8.0-19-generic  N/A
   linux-firmware                            1.106
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: Upgraded to raring on 2013-04-25 (1 days ago)
  dmi.bios.date: 02/27/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G5ET92WW (2.52 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 24472AG
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG5ET92WW(2.52):bd02/27/2013:svnLENOVO:pn24472AG:pvrThinkPadW530:rvnLENOVO:rn24472AG:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 24472AG
  dmi.product.version: ThinkPad W530
  dmi.sys.vendor: LENOVO

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