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I have sony vaio SVE151117F, ubuntu 12.10.I used to see brightness animation upon pressing Fn+F6,F5 but not actual brightness of screen. I have tried to implement as said in http://ubuntuforums.org/showthread.php?t=2086359 but now I cant even see the brightness level animation.There is no change in brightness level of screen as usual.

I tried below links too , but still problem persists. unable to change brightness settings in sony vaio e series laptop http://vaioubuntu.wordpress.com/2008/12/04/finally-a-brightness-how-to-for-vaio-fw-series/

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Have a look at this Post. –  Mitch Jun 9 '13 at 11:59

1 Answer 1

Go to the link below and download the driver by entering the commands posted their. Check the list of supported cards (probably listed their if not don't get panic give it a try. Personally mine is not their but that commands worked for me)


After installing reboot your laptop. then try this:

  1. Create the file /usr/share/X11/xorg.conf.d/15-nvidia.conf:

    gksu gedit /usr/share/X11/xorg.conf.d/15-nvidia.conf
  2. Copy/paste the following content:

     Section "Device"
      Identifier              "Device0"
      Driver                  "nvidia"
      VendorName              "NVIDIA Corporation"
      Option "RegistryDwords" "EnableBrightnessControl=1"
  3. Save the file and reboot

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