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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 - Lenovo P50 - Slow fine touchpad movement makes it jump"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105022">105022</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Lenovo P50 - Slow fine touchpad movement makes it jump
</td>
</tr>
<tr>
<th>Product</th>
<td>Wayland
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>OS</th>
<td>other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>libinput
</td>
</tr>
<tr>
<th>Assignee</th>
<td>wayland-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>krasi.root@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=137243" name="attach_137243" title="logs">attachment 137243</a> <a href="attachment.cgi?id=137243&action=edit" title="logs">[details]</a></span>
logs
Fedora 27, KDE (the same on Gnome)
When trying to to do a fine movement on the touchpad it jumps making it
impossible to do fine selection on small text and click small buttons.
libinput --version
1.9.4
Here is a short video
<a href="https://www.youtube.com/watch?v=Yqeu5ZrC_p0">https://www.youtube.com/watch?v=Yqeu5ZrC_p0</a>
Let me know how can I obtain any further debug info you need.
How reproducible:
always
Device: SynPS/2 Synaptics TouchPad
Kernel: /dev/input/event6
Group: 8
Seat: seat0, default
Size: 100x55mm
Capabilities: pointer gesture
Tap-to-click: disabled
Tap-and-drag: enabled
Tap drag lock: disabled
Left-handed: disabled
Nat.scrolling: disabled
Middle emulation: n/a
Calibration: n/a
Scroll methods: *two-finger edge
Click methods: none
Disable-w-typing: enabled
Accel profiles: none
Rotation: n/a
Trackpoint seems to be working fine but that is impossible to use for fine
selection as well as it is not so sensitive.
when I run libinput-debug-events I see the pauses there as well, but in
evemu-record I see no pauses but the SYN_REPORT seems to show some high ...ms
numbers when it jumps
dmesg | grep synaptics
[45462.267789] psmouse serio2: Failed to disable mouse on synaptics-pt/serio0
[45463.917768] psmouse serio1: synaptics: queried max coordinates: x [..5676],
y [..4754]
[45463.951593] psmouse serio1: synaptics: queried min coordinates: x [1266..],
y [1100..]
[57186.672594] psmouse serio1: synaptics: queried max coordinates: x [..5676],
y [..4754]
[57186.706204] psmouse serio1: synaptics: queried min coordinates: x [1266..],
y [1100..]
[70344.182014] psmouse serio2: Failed to disable mouse on synaptics-pt/serio0
[70345.835838] psmouse serio1: synaptics: queried max coordinates: x [..5676],
y [..4754]
[70345.869367] psmouse serio1: synaptics: queried min coordinates: x [1266..],
y [1100..]
[71920.887255] psmouse serio2: Failed to disable mouse on synaptics-pt/serio0
[71922.547431] psmouse serio1: synaptics: queried max coordinates: x [..5676],
y [..4754]
[71922.581315] psmouse serio1: synaptics: queried min coordinates: x [1266..],
y [1100..]
[73774.120004] psmouse serio1: synaptics: queried max coordinates: x [..5676],
y [..4754]
[73774.150886] psmouse serio1: synaptics: queried min coordinates: x [1266..],
y [1100..]
[153129.909367] psmouse serio2: Failed to disable mouse on synaptics-pt/serio0
[153131.577309] psmouse serio1: synaptics: queried max coordinates: x [..5676],
y [..4754]
[153131.610758] psmouse serio1: synaptics: queried min coordinates: x [1266..],
y [1100..]
[189275.078662] psmouse serio2: Failed to disable mouse on synaptics-pt/serio0
[189276.740406] psmouse serio1: synaptics: queried max coordinates: x [..5676],
y [..4754]
[189276.774166] psmouse serio1: synaptics: queried min coordinates: x [1266..],
y [1100..]
[198254.977092] psmouse serio1: synaptics: queried max coordinates: x [..5676],
y [..4754]
[198255.010772] psmouse serio1: synaptics: queried min coordinates: x [1266..],
y [1100..]</pre>
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