Comments on: Samsung R480 laptop LCD brightness http://blog.christophersmart.com/2010/07/10/samsung-r480-laptop-lcd-brightness/ Fortiter Et Recte Sat, 18 May 2013 13:34:22 +0000 hourly 1 http://wordpress.org/?v=3.5.1 By: nightship http://blog.christophersmart.com/2010/07/10/samsung-r480-laptop-lcd-brightness/comment-page-1/#comment-6829 nightship Wed, 14 Jul 2010 10:02:10 +0000 http://blog.christophersmart.com/?p=2191#comment-6829 Excellent advice!

I suffered from the same problem: Could not adjust the screen brightness of my LCD display on my Lenovo ThinkPad T510 (using the respective Fn key combinations).

I tried your hint and simply added the single line
Option “RegistryDwords” “EnableBrightnessControl=1″
to the “Device” section of file /etc/X11/xorg.conf. After a restart of the xserver / kdm, adjusting screen brightness using the function key combinations works perfectly. By the way, I’m running Kubuntu 10.04 LTS (lucid) with a 2.6.32-23 kernel.

Thanks a lot! :-)

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