Brightness control for backlight not working on R530

[Skilldrick]

Hi guys - great job on the site - this is exactly what I need!

I've installed samsung-backlight and samsung-tools, but the backlight controls aren't working yet. Fn+Up and Fn+Down are both making it as far as the OS, because the flash comes up top-right showing that the brightness is increasing and decreasing, but nothing else happens (i.e. the brightness doesn't change).

I'm running Ubuntu 10.10.

[giorgiob]

nVidia or Intel video?

If nVidia try modifying the /etc/X11/xorg.conf like this:

Code: Select all

Section "Device"
   Identifier  "Default Device"
   Driver      "nvidia"
   Option      "NoLogo" "True"
   Option      "RegistryDwords" "EnableBrightnessControl=1"
EndSection

it worked for me on a R510 nvidia...

bye!