I have an original (2019) PBP, and I saw great trackkpad functionality after updating the hardware back on Debian. Ever since installing Manjaro, the trackpad has just had a mind of its own. The problem persists when using a USB mouse. Any idea what might be the problem? The firmware should stay updated even after reflashing the OS, no?
So I just reinstalled Debian. The mouse works perfectly on Debian. No problems at all. It's terrible on Manjaro.
I've played with all the settings and the mouse just never behaves well on Manjaro - even after changing the trackpad size and installing firmware.
Any thoughts why it works on Debian but not Manjaro? It's a shame because Manjaro otherwise works better honestly.
I've further narrowed it down. It's likely something in KDE plasma because it doesn't do it in XFCE on Manjaro.