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i'm using ubuntu 12.04 and amd 6470M (laptop), i install lastest amd driver on my ubuntu (amd 13.4) but i can't decrease or increase display bridgness, i check in detail (on system setting) and i see the grapic is "unknown". anybody can help me? (laptop ASUS A44 Core i3-2330M AMD Radeon 6470M)

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  • Usually, display brightness control is not related to graphics drivers, but requires a driver on its own, which is specific to the laptop model. Please update your question to include the brand and model of your laptop.
    – soulsource
    May 2 '13 at 12:41
  • i use amd 13.1 driver version and brightness control in my laptop is working fine. :) May 3 '13 at 0:28
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Run this command in a terminal:

sudo amdconfig --initial

after installing the amd drivers.

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  • thanks for the answer,,, :) but ist still not working for me :( i think i need link for download amd 13.1 driver for linux, :) thanks May 22 '13 at 7:01

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