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[Bug 1214752] Re: Lenovo Ideapad S205] Brightness keys do not change brightness after the last update



By removing any acpi options added to the kernel boot parameter lines in


probably not needed but also did apt-get update / upgrade

downloaded the 13.10-beta2 amd / catalyst driver from amd.

first try at installing failed, it said something about missing packages
/ files. After investigation it appears apt thought I had the linux-
headers- installed ok, but when I looked for the missing file -
it was no place to be found! I forced apt to reinstall the headers (both
generic and all packages) and for good measure the kernel-image:

apt-get --reinstall install linux-headers-3.2.0-54
apt-get --reinstall install linux-headers-3.2.0-54-generic
apt-get --reinstall install linux-image-

after that I could install the drivers ok from AMD

and it WORKS! up/down brightness are back! (after a reboot)

I also tested this with the upstream kernel 3.2.50 as suggested near the
top of this thread and the drivers installed ok. I can confirm the keys
are now working with that version of the kernel too.


The Lenovo S205, (AMD Radeon HD 6310 Graphics) seems not to work with
the generic drives, or AMD's 13.4 drivers. BUT does work ok with the AMD
13.10-beta2 drivers.

Home this helps.


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  Lenovo Ideapad S205] Brightness keys do not change brightness after
  the last update

Status in “linux” package in Ubuntu:

Bug description:
  Using either the increase or decrease brightness key results in osd-
  message showing the slider value going up or down. However, the actual
  brightness of the screen stays the same.

  It worked before this update^

  Start-Date: 2013-08-21 09:24:10
  Commandline: aptdaemon role='role-commit-packages' sender=':1.31'
  Install: linux-headers-3.2.0-52-generic:i386 (3.2.0-52.78), linux-image-3.2.0-52-generic:i386 (3.2.0-52.78), linux-headers-3.2.0-52:i386 (3.2.0-52.78)
  Upgrade: base-files:i386 (6.5ubuntu6.5, 6.5ubuntu6.6), fglrx-updates:i386 (9.000-0ubuntu0.3, 12.104-0ubuntu0.0.1), linux-headers-generic:i386 (,, fglrx-amdcccle-updates:i386 (9.000-0ubuntu0.3, 12.104-0ubuntu0.0.1), linux-image-generic:i386 (,, dosfstools:i386 (3.0.12-1ubuntu1, 3.0.12-1ubuntu1.1), linux-libc-dev:i386 (3.2.0-51.77, 3.2.0-52.78), jockey-common:i386 (0.9.7-0ubuntu7.9, 0.9.7-0ubuntu7.10), jockey-gtk:i386 (0.9.7-0ubuntu7.9, 0.9.7-0ubuntu7.10), linux-generic:i386 (,

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-52-generic 3.2.0-52.78
  ProcVersionSignature: Ubuntu 3.2.0-52.78-generic 3.2.48
  Uname: Linux 3.2.0-52-generic i686
  NonfreeKernelModules: fglrx
   defaults.ctl.card 1
   defaults.pcm.card 1
   defaults.timer.card 1
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.4
  Architecture: i386
   **** List of CAPTURE Hardware Devices ****
   card 1: SB [HDA ATI SB], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
   /dev/snd/controlC1:  andrew     1628 f.... lxpanel
   Card hw:0 'Generic'/'HD-Audio Generic at 0x90244000 irq 43'
     Mixer name	: 'ATI R6xx HDMI'
     Components	: 'HDA:1002aa01,00aa0100,00100200'
     Controls      : 6
     Simple ctrls  : 1
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [off]
   Card hw:1 'SB'/'HDA ATI SB at 0x90240000 irq 16'
     Mixer name	: 'Conexant CX20590'
     Components	: 'HDA:14f1506e,17aa6005,00100003'
     Controls      : 9
     Simple ctrls  : 6
  Date: Wed Aug 21 10:23:24 2013
  HibernationDevice: RESUME=UUID=61f0b28a-c480-44b1-986c-b4ef7beacbe8
  InstallationMedia: Lubuntu 12.04 "Precise Pangolin" - Release i386 (20120423)
  MachineType: LENOVO Brazos
  MarkForUpload: True
   PATH=(custom, no user)
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-52-generic root=UUID=ac66b454-53c5-4cbf-a577-ae4ea09be832 ro quiet splash vt.handoff=7
   linux-restricted-modules-3.2.0-52-generic N/A
   linux-backports-modules-3.2.0-52-generic  N/A
   linux-firmware                            1.79.6
  SourcePackage: linux
  StagingDrivers: rts5139
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/10/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 4BCN24WW
  dmi.board.asset.tag: Base Board Asset Tag Unknown
  dmi.board.name: Inagua
  dmi.board.vendor: LENOVO
  dmi.board.version: 109-B78210-00A
  dmi.chassis.asset.tag: Chassis Asset Tag Unknown
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Chassis Version Unknown
  dmi.modalias: dmi:bvnLENOVO:bvr4BCN24WW:bd08/10/2011:svnLENOVO:pnBrazos:pvrIdeapadS205:rvnLENOVO:rnInagua:rvr109-B78210-00A:cvnLENOVO:ct10:cvrChassisVersionUnknown:
  dmi.product.name: Brazos
  dmi.product.version: Ideapad S205
  dmi.sys.vendor: LENOVO

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