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  1. Bug #1083984
  2. Comment #20

Comment 20 for bug 1083984

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Andrew Dahl (droidjd) wrote : Re: Brightness control doesn't work on Lenovo Thinkpad T530

To answer Matt's question, yes, it is up to the nVidia driver to control the brightness control.

I've a T530 running Fedora and the backlit display works after resume. I'm using the nVidia proprietary driver and added the following line under the "Device" section in the Xorg conf file (/etc/X11/xorg.conf)

Option "RegistryDwords" "EnableBrightnessControl=1"

Hope that helps!
-Andrew