Bad touchpad jitter on Dell Inspiron 3521
When using the touchpad, the mouse cursor does unexpected movements, making difficult to click on items (especially small buttons). This behaviour happens when the finger touches the touchpad on a small surface (e.g. the moment right before the end of the tap, resulting in a click some pixels away).
Steps to reproduce
Keep the finger still on the touchpad, the smaller the contact area, more likely the wrong behaviour.
libinput version you encountered the bug on
Laptop: Dell Inspiron 3521
Other log output:
libinput recordoutput: libinput-record.yml
libinput debug-events --verboseoutput: libinput_debug-events.txt
record and the
debug-events were recorded in different moments, the problem occurred both times. The problem is particularly visible in the last seconds.
Notice: I tried:
sudo libinput measure fuzz /dev/input/event5 and
got this error: fuzz-error.txt