[Wayland-bugs] [Bug 106506] libinput 1.10 trackpoint speed limit is too low

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106506

            Bug ID: 106506
           Summary: libinput 1.10 trackpoint speed limit is too low
           Product: Wayland
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: libinput
          Assignee: wayland-bugs at lists.freedesktop.org
          Reporter: hyperair at gmail.com

Trackpoint movement events are clamped to TRACKPOINT_DEFAULT_MAX_DELTA (60)
with no configurable way of increasing it. This results in an intolerably slow
top trackpoint movement speed, taking ~5 seconds to traverse my two screens
horizontally (3840 + 1200px).

The trackpoint I'm using is the "Lite-On Technology Corp. Thinkpad USB Keyboard
with TrackPoint", with usb-id: 17ef:6009.

I've recompiled libinput with TRACKPOINT_DEFAULT_MAX_DELTA=120 and am
experiencing a much more favourable pointer speed now.

Here's the output of "libinput debug events" with my recompiled libinput:

 event22  POINTER_MOTION    +1.18s      120.00/ 37.72
 event22  POINTER_MOTION    +1.21s      120.00/ 54.28
 event22  POINTER_MOTION    +1.21s      120.00/ 64.40
 event22  POINTER_MOTION    +1.23s      120.00/ 66.24
 event22  POINTER_MOTION    +1.25s      120.00/ 82.80
 event22  POINTER_MOTION    +1.26s      120.00/ 64.40
 event22  POINTER_MOTION    +1.29s      120.00/ 58.88
 event22  POINTER_MOTION    +1.29s      120.00/ 47.84
 event22  POINTER_MOTION    +1.33s      120.00/ 26.68
 event22  POINTER_MOTION    +1.33s      120.00/ 23.92
 event22  POINTER_MOTION    +1.35s      120.00/ 17.48
 event22  POINTER_MOTION    +1.36s      120.00/ 15.64
 event22  POINTER_MOTION    +1.37s      120.00/ 12.88
 event22  POINTER_MOTION    +1.39s      120.00/  9.20
 event22  POINTER_MOTION    +1.41s      120.00/  5.52
 event22  POINTER_MOTION    +1.42s      109.48/  4.60
 event22  POINTER_MOTION    +1.44s      120.52/  2.76

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/wayland-bugs/attachments/20180514/d3e644e3/attachment.html>