[Wayland-bugs] [Bug 105022] Lenovo P50 - Slow fine touchpad movement makes it jump

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105022

--- Comment #37 from Peter Hutterer <peter.hutterer at who-t.net> ---
this patch should have no effect on scrolling behaviour, unless the scroll
motion is very slow. Do you see this only on slow scrolling or on all scroll
movements?


Tim: from your attachment:
E: 27.760187 0003 0035 3727     # EV_ABS / ABS_MT_POSITION_X    3727

then, 2s later the next X axis update at:
E: 29.537905 0003 0035 3622     # EV_ABS / ABS_MT_POSITION_X    3622

At a resolution of 44 units per mm this is a >2mm jump in input coordinates.
The patch from comment 25 should have taken care of it though, provided it was
active (make sure you run udevadm hwdb --update after installing it and
rebooting).

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