[kubuntu] karmic: nvidia brightness and power management

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http://ubuntuforums.org – Brightness control via System Settings->Power Management doesn't work anymore when I install the NVIDIA proprietary driver, it does work with the 'nv' driver. I have a tool nvclock that I can use to control the brightness, can this be integrated into the Power Management tool? Another problem is that the Fn+BrightnessUp and Fn+BrightnessDown buttons don't work. When I press them I can see the (blue) progressbar going to 0% or 100% at once, brightness itself is not changed. Any ideas how to get this working properly? Next are details of my hardware: 1) Kubuntu 9.10 Karmic Koala 2) Samsung Q210 Laptop 3) NVidia 4) GeForce 9200M GS (Hardware)