I have a Samsung NP530U3C-A0AUK that came with Windows 8. I recently upgraded from Windows 8.1 to Windows 10, and since then, the screen brightness adjust function keys (fn+F2 and fn+F3) have stopped working.
The volume adjust function keys (fn+F6/F7/F8) and touchpad disable key (fn+F5) do still work.
I've tried updating the following drivers: Intel HD Graphics 4000 display adapter (didn't solve the problem), Generic PnP Monitor and Standard PS/2 Keyboard (both already up to date). There isn't a keyboard driver on the Samsung support website.
Is there a registry setting that can be changed to re-enable the brightness keys?
To clarify: I can fully adjust the screen brightness in Settings
Another problem I am having post-Win10: Samsung Series 5 does not automatically wake up from sleep on lid open after Win 10 upgrade