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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - libinput 1.10 trackpoint speed limit is too low"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106506">106506</a>
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<th>Summary</th>
<td>libinput 1.10 trackpoint speed limit is too low
</td>
</tr>
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<th>Product</th>
<td>Wayland
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>libinput
</td>
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<th>Assignee</th>
<td>wayland-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>hyperair@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>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</pre>
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</p>
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