SUMMARY I upgrade from KDE 5 to KDE 6 RC2, and upon upgrade the first thing I noticed was my mouse sensitivity seemed massively faster to the point of being unusable (2-3x faster at least). It was very jarring and my first task on upgrade needed to be changing the sensitivity to how it felt before. NOTE: I do not know the values before and after to know if the sensitivity values needed to be different, or if it just felt different due to some KDE 6 change in behavior. STEPS TO REPRODUCE 1. Be on KDE 5 with a mouse sensitivity that you set and feels comfortable 2. Upgrade to KDE 6 RC2 3. Notice the mouse sensitivity has increased massively OBSERVED RESULT Mouse sensitivity increases massively upon upgrade to KDE 6 RC2 EXPECTED RESULT The mouse sensitivity should feel functionally identical when doing an upgrade, as this feels like a regression when doing an upgrade and gives an immediate jarring feeling to using KDE 6. SOFTWARE/OS VERSIONS Linux/KDE Plasma: 6 (available in About System) KDE Plasma Version: 5.93.0 KDE Frameworks Version: 5.249.0 Qt Version: 6.7.0 ADDITIONAL INFORMATION Kernel 6.7.4-arch1-1 Unfortunately I do not know what my mouse sensitivity values were, so I'm unsure if the sensitivity was reset, or if there's some other fundamental change in KDE 6 that makes the mouse feel significantly faster.
Were you on X11 in Plasma 5, and then upgrading to Plasma 6 got you the Wayland session by default? Especially if you use any screen scaling? If so, that probably explains it, as the settings are different and sensitivity is scaled on Wayland (as it always should have been) but not on X11, which was always a bug.
(In reply to Nate Graham from comment #1) > Were you on X11 in Plasma 5, and then upgrading to Plasma 6 got you the > Wayland session by default? Especially if you use any screen scaling? If so, > that probably explains it, as the settings are different and sensitivity is > scaled on Wayland (as it always should have been) but not on X11, which was > always a bug. Yup exactly. I believe I am using scaling? I'm at a different PC and can't check. At least my resolution was 2560x1440 so presumably yes. I think that explains what happened.
Cool, I had a feeling. In that case the bug you've been living with (and working around by setting the sensitivity really high) all these years has been fixed, so you don't need to use that workaround anymore!