How can I change display brightness in smaller percentages using laptop keys?

English Hardware
1

Hello,

I am using OpenSuse 13.2 with Kde desktop. When I try to change brightness using laptop keys, it always changes by 20%. How can I change it by smaller percentages like 5% or 10% by using laptop keys.

I am using Dell Inspiron 15 7000 series laptop.

2

Do you also have to press a “Fn” key to do this? If so, that would be your laptop’s BIOS that takes care of that.