https://bugs.kde.org/show_bug.cgi?id=398713
--- Comment #24 from warloxx...@gmail.com --- > flat acceleration just isn't the same as no acceleration. Actually it is exactly that. The name "acceleration factor" might just be a bit of a confusing name. Its just a factor that results from some acceleration calculation, and when not used gets set to 1 as to not have any effect (multiplicative identity element). A constant acceleration factor of 1 (Flat profile) will cause no acceleration. Since the factor really is just a proportional gain of mouse movement to pointer movement. If the term where 0 the pointer would not move at all anymore. This is basically a setting of how fast you want you pointer in relation to the movement of your mouse. The acceleration only happens when this term is not constant but depending on the current speed of you mouse movements. This happens in the adaptive profile. On higher mouse speeds the proportional term gets increased. This causes a fast movement of distance X resulting in a bigger pointer movement in the adaptive profile than in the flat profile. -- You are receiving this mail because: You are watching all bug changes.