Hey all,

My brightness hotkeys dont work but all the other hotkeys work without any issue.

Im using a Acer Gateway laptop NV57H which has Nvidia Optimus technology, what this means is I have two different graphis cards in my laptop. I have a intergrated video card being the intel one and the other being a nvidia card.

When I press on the brigbhtness key it shows the picture and recogonises that im trying to change the brightness however the screen brightness stays the same.

Can anyone please help me

Thanks