[Wayland-bugs] [Bug 105485] Add hwdb entry for X280 trackpoint (too fast)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105485

Peter Hutterer  changed:

   What|Removed |Added

 Status|NEEDINFO|RESOLVED
 Resolution|--- |FIXED

--- Comment #3 from Peter Hutterer  ---
commit 9d7f48b66aad8f985212ca3f6e31fc6e84caee90
Author: Peter Hutterer <>
Date:   Thu Mar 22 14:29:37 2018 +1000

 udev: add trackpoint range for Lenovo X280

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[Wayland-bugs] [Bug 105485] Add hwdb entry for X280 trackpoint (too fast)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105485

--- Comment #2 from Benjamin Berg  ---
Got confused a bit at first, but the measurement was without the sensitivity
scaling in the end.

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[Wayland-bugs] [Bug 105485] Add hwdb entry for X280 trackpoint (too fast)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105485

Peter Hutterer  changed:

   What|Removed |Added

 CC||peter.hutte...@who-t.net
 Status|NEW |NEEDINFO

--- Comment #1 from Peter Hutterer  ---
Did you measure that with the systemd PR there or without? It'll change the
range available so the numbers are garbage otherwise

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[Wayland-bugs] [Bug 105485] Add hwdb entry for X280 trackpoint (too fast)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105485

Bug ID: 105485
   Summary: Add hwdb entry for X280 trackpoint (too fast)
   Product: Wayland
   Version: unspecified
  Hardware: Other
OS: All
Status: NEW
  Severity: normal
  Priority: medium
 Component: libinput
  Assignee: wayland-bugs@lists.freedesktop.org
  Reporter: benja...@sipsolutions.net

The trackpoint on the X280 is too fast. I first thought that adding an entry to
the systemd hwdb is correct, but changing the acceleration to 64 there improves
things only until libinput also reads the property.

https://github.com/systemd/systemd/pull/8442 has the relevant matching rules
for the machine.

The libinput-measure-trackpoint-range utility seems to suggest a value of 70
for  the machine. Though, to be honest, it is hard to tell how much one is
supposed to press. Doesn't feel perfect, but I am not a big trackpoint user, so
might be misinterpreting things.

Rule:
libinput:name:*ALPS TrackPoint*:svnLENOVO:*:pvrThinkPadX280:*
  LIBINPUT_ATTR_TRACKPOINT_RANGE=70

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