[Wayland-bugs] [Bug 100752] Cursor lag on synaptics touchpad

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100752

            Bug ID: 100752
           Summary: Cursor lag on synaptics touchpad
           Product: Wayland
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: libinput
          Assignee: wayland-bugs at lists.freedesktop.org
          Reporter: copong at gmail.com

Created attachment 130963
  --> https://bugs.freedesktop.org/attachment.cgi?id=130963&action=edit
evemu-record /dev/input/event5

I'm currently trialling Gnome 3.24 on Ubuntu 17.04 and Wayland. I find libinput
to work really well on my mouse, but the touchpad seems to have some input lag
(can't quite quantify how much, maybe 100ms), just about enough to throw me off
when trying to reach stuff like buttons, links, window borders etc. Essentially
I always overshoot. This doesn't seem to happen with the mouse, as said
earlier.

I'm attaching the required diagnostic dumps below.

Ubuntu 17.04, libinput10 1.6.3-1ubuntu1 amd64, libwayland-(bin|client0|cursor0)
1.12.0-1 amd64.
Laptop is a Fujitsu A544.

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