The actual brightness steps are VERY bad for some notebooks. The steps are too big. sometimes they go by 20% each, and 20% on a good bright screen is a lot! Under windows there are a lot more steps and can always find the right spot in every light condition. Please enable somewhere a text field to input the percentage between steps or make them 5% (like sound volume). thanks Reproducible: Always
*** This bug has been marked as a duplicate of bug 276482 ***