noname1234

My problem was the same: all Fn buttons had worked fine, except brightness buttons. All the same I was not able to change the brightness in windows control panel (brightness adjustment was missing) and in samsung control center (nothing happened when moved the brightness adjustment). Check programs that can "override" your screen. My problem was TeamViewer 13. Don't know how TeamViewer had been overriding brightness settings, but when I had deleted it, Fn-buttons for brightness were on.