[QUOTE=Ztcoracat;5626731]Try looking in Settings, brightness control or something similar. Look in power management too.
What DE are you running? Cinnamon or Mate?
What GPU do you have?
I can find NO settings, brightness or anything similar.
running on a Gibabyte Z97X Gaming 7. have a Geforce gtx 750ti vid card that
has no working drivers for Linux Mint,Cinnamon, after downloading the ones recommended by gigabyte.
ended up with a blank black screen with a dash in the upper left hand corner and nothing else.
so the vid is plugged into the mobo serial output, and works just fine for the last 3 years.
just trying to make some ity-bity changes that seem to have nothing avail to do that - if possible.