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Old 12-27-10, 05:43 PM   #3
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Join Date: Dec 2010
Posts: 4
Default Re: Backlight/Brightness control not working

Hi, I have Dell Vostro 3700 too and I'm experiencing the same problem. I'm using Gentoo with latest stable kernel (2.6.36) and nvidia-drivers (260.19.29).

Furthermore I've tried nvidia-bl module provided by mactel, which was a partial success - I can control the brightness from command line via /sys/devices/virtual/backlight/nvidia_backlight/brightness. The remaining problem is that when I switch on/off compositing in KDE4, "something" resets the brightness level to the value that was set by Fn keys last time (my wild guess is that nvidia-driver remembers what was set by Fn keys and resets it).
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