GTX 1070 - Brightness problems

Hi there guys!

I’m having a hard time getting brightness keys to work ( pressing FN + f1 or f2 ).
Using xbacklight -set x works, however the specific FN keys don’t do anything.

My system:

LinuxMint 19.1 - Cinnamon Edition (all up to date)
Graphic drivers in use: Nvidia 390
Laptop: HP OMEN 2018 edition

What can i try?

thanks

Please upgrade to a more current 415 or 418 driver using the Ubuntu graphics ppa.

worked like a charm! thanks!