SUMMARY The touchpad is very sensitive, its near impossible to use the trackpoint without brushing and activating the touchpad repeatedly, which always overrides the trackpoint causing random behaviour (see #345935) . To cure this the touchpad must be disabled, however the "Disable touchpad" option in system settings will disable both the touchpad and the trackpoint. STEPS TO REPRODUCE 1. Go to system settings and disable touchpad OBSERVED RESULT Both touchpad and trackpoint stop working. EXPECTED RESULT Only the touchpad should stop working. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Mageia 8 (available in About System) KDE Plasma Version: 5.20.4 KDE Frameworks Version: 5.76.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION xinput at the command line reports the following pointer devices: Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ Synaptics TM3203-003 id=11 [slave pointer (2)] ⎜ ↳ Wacom HID 5115 Pen stylus id=12 [slave pointer (2)] ⎜ ↳ Wacom HID 5115 Finger touch id=13 [slave pointer (2)] ⎜ ↳ TPPS/2 IBM TrackPoint id=19 [slave pointer (2)] ⎜ ↳ Wacom HID 5115 Pen eraser id=20 [slave pointer (2)] If I execute: xinput float 11 the touchpad will be disabled while the trackpoint continues to function, so the devices can be independently controlled but the plasma system settings must be mis-identifying the trackpoint as a touchpad device and disabling both.
Cannot reproduce on Wayland. If you're on X11, can you try it out on Wayland and see if it works there?
The problem doesn't seem to happen under wayland, however wayland was a mish-mash of font and icon sizes on my high density display, X11 is consistent, so not an option for a permanent switch.
That's interesting, most people say the opposite. I suspect it's caused by using a mishmash of scaling settings across different apps and System Settings pages, rather than using the single scaling slider on the Display & Monitor page. Try only using that and seeing if it helps.
Adding the x11-only keyword