SUMMARY While scrolling with touchpad, the amount scrolled is not based on the speed/acceleration of how you're scrolling, it just scrolls by a fixed amount. It would be nice to have scrolling that depends on what speed the person is scrolling, and not jerky like it is now. STEPS TO REPRODUCE 1. Scroll with touchpad OBSERVED RESULT The scrolling of the document happens jerkily, and by a fixed amount every time. If you're scrolling very slowly, then it scrolls a lot of lines, pauses, and scrolls again. EXPECTED RESULT Smooth scrolling, where the speed of scrolling is dependent on the speed by which you're scrolling with the touchpad SOFTWARE/OS VERSIONS Windows: 10.0.19043 Build 19043, Microsoft Windows 10 Home ADDITIONAL INFORMATION none
I agree that stepwise scrolling is not good for touchpad use. Okular usually has per-pixel scrolling, so it should follow touchpad input directly. The problem here is probably related to using Okular on Windows. I don’t know much about Windows. Anyways, did you install Okular from the Microsoft Store, or somehow else? (Probably irrelevant: does it change if you toggle the Use Smooth Scrolling option in Settings -> Configure Okular...?)
Sorry, I should have clarified about Windows. I run neon too, and the touchpad scrolling works smooth there. I installed Okular from the Microsoft Store. About Smooth Scrolling, it was enabled by default, and disabling it leads to the exact same behaviour as before except that the scrolling is instantaneous, and not animated. The bug is that the animation while scrolling (that is, the 'smooth' part) is there, but it doesn't actually follow the touchpad speed.