ThinkPad E585 choppy and not smooth at all
After installing an additional 8GB of RAM and a spare SSD to my ThinkPad E585, I decided to finally install a Linux distribution and use it as my daily driver from now on. Though I was surprised to see that the touchpad didn't work as intended. It feels unnatural and looks as if it skips frames as it moves. I wouldn't use the word "jumpy" as the behavior is what I believe is called "choppy". The trackpoint also shows the same behaviour on Linux, while they both work smoothly and show no signs of skipping or choppiness under Windows 10.
Steps to reproduce
Does not need any additional steps as the touchpad does not work as intended. Tap was also enabled by default.
libinput version you encountered the bug on
1.14.1 as reported by the following command:
Came installed with Pop!_OS 19.10
Edit: Also tested on 1.14.901.
ThinkPad E585 (20KV000ATX)
Other log output:
libinput recordoutput: touchpad.yaml trackpoint.yaml
libinput debug-events --verboseoutput: debug-events.log
touchpad-edge-detector 98x65 /dev/input/event6output: touchpad-edge-detector.txt
udevadm infooutput: udevadminfo-trackpad.txt udevadminfo-trackpoint.txt
libinput quirks list /dev/input/event6output:
libinput measure fuzzoutput:
Using SynPS/2 Synaptics TouchPad: /dev/input/event6 Checking udev property... not set Checking axes... not set
cat /sys/class/dmi/id/modaliasoutput: modalias.txt