I can confirm the exact same symthoms in the latest Kubuntu lucy alpha (including updates), the brighness keys work correct in Ubuntu (lucid) but do nothing in Kubuntu.
With xbacklight I can change the backlight.
I can confirm the exact same symthoms in the latest Kubuntu lucy alpha (including updates), the brighness keys work correct in Ubuntu (lucid) but do nothing in Kubuntu.
With xbacklight I can change the backlight.