Updated, restarted, then felt mouse acceleration. Checked the mouse settings, and can't find the advanced tab there anymore.
https://i.imgur.com/RzSzB80.png

Where did it go? And how can I disable mouse acceleration entirely?

Looks like they removed most of those options from 5.16.1 to 5.16.2 (a few were consolidated on the one remaining page). Not sure if you have equivalent control with the new Pointer speed and Acceleration profile settings (seems not). The former settings are may still be in a text configuration file somewhere.

Neon just moved to Libinput, and Libinput doesn't support many of the features of the old driver. The configuration UI also has some bugs. Sounds like you're hitting https://bugs.kde.org/show_bug.cgi?id=398713

If you're dissatisfied with this state of affairs, you can always uninstall Libinput and it will fall back to the old evdev driver you're more familiar with.

Looks like setting

Code: Select all

xinput --set-prop "<mouse id>" "libinput Accel Profile Enabled" 0, 1

solves the issue until a restart is made. Any idea how to make this permanent?