I can't change my screen brightness in (K) ubuntu 16.10 I have a Samsung AtivBook 6. My Fn keys is working, but only appears the brightness bar on the screen, but don't change the brightness.

My notebook specs: Intel i5 3230M; Graphics: Intel HD 4000 (Onboard); AMD Radeon HD 8850M (Offboard);

Anyone have a solution?


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