Comment 27 for bug 518002

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Telic (z180) wrote : Re: lucid extensa 5635z backlight dimming not working at all

Wolfgang, the fn-key problem that you describe here also appeared when I went from 64-bit Karmic to Lucid on my HP ProBook 4510s, which has an ATI Mobility Radeon HD-4330. The fn-key problem disappeared after I installed ATI Catalyst Display Driver version 10.6, which I downloaded from the AMD support site.