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[Bug 1143778] Re: [Dell Latitude 6430u] Brightness keys do not work

 

Jeff Lane, other folks with Dell laptops have been able to update the BIOS utilizing https://help.ubuntu.com/community/BiosUpdate . As per http://www.dell.com/support/drivers/us/en/19/product/latitude-6430u-ultrabook an update is available for your BIOS (A06). If you update to this following does it change anything? If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Thank you for your understanding.

** Tags added: bios-outdated-a06

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

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https://bugs.launchpad.net/bugs/1143778

Title:
  [Dell Latitude 6430u] Brightness keys do not work

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Running 12.04.2 on the system and the brightness keys do not work.
  The keys are a combination of Fn and Up or Down arrow.

  On attempting to use the keys, there is no effect on screen
  brightness, nor is there the brightness indicator.

  However, I am able to control brightness using the Brightness settings
  from "System Settings"

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.5.0-23-generic 3.5.0-23.35~precise1
  ProcVersionSignature: Ubuntu 3.5.0-23.35~precise1-generic 3.5.7.2
  Uname: Linux 3.5.0-23-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  ApportVersion: 2.0.1-0ubuntu17.1
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1407 F.... pulseaudio
  CRDA:
   country TW:
   	(2402 - 2472 @ 40), (3, 27)
   	(5270 - 5330 @ 40), (3, 17), DFS
   	(5735 - 5815 @ 40), (3, 30)
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf7e30000 irq 48'
     Mixer name	: 'Intel PantherPoint HDMI'
     Components	: 'HDA:111d76df,10280584,00100203 HDA:80862806,80860101,00100000'
     Controls      : 23
     Simple ctrls  : 10
  Date: Mon Mar  4 02:25:42 2013
  HibernationDevice: RESUME=UUID=c0470f10-8436-437b-8009-ba2be8ecb392
  InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
  MachineType: Dell Inc. Latitude 6430U
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-23-generic root=UUID=4c3d4b80-eff7-43f9-bf80-3904f2788102 ro quiet splash initcall_debug vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-23-generic N/A
   linux-backports-modules-3.5.0-23-generic  N/A
   linux-firmware                            1.79.1
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/31/2012
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: X28
  dmi.board.name: 0V4GYG
  dmi.board.vendor: Dell Inc.
  dmi.board.version: X01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrX28:bd08/31/2012:svnDellInc.:pnLatitude6430U:pvr01:rvnDellInc.:rn0V4GYG:rvrX01:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude 6430U
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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