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<base href="https://bugs.freedesktop.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Acer Aspire 5749 - The cursor jumps when scrolling with two fingers"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96275">96275</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Acer Aspire 5749 - The cursor jumps when scrolling with two fingers
</td>
</tr>
<tr>
<th>Product</th>
<td>Wayland
</td>
</tr>
<tr>
<th>Version</th>
<td>1.3.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</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>juanjo@benages.eu
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=124173" name="attach_124173" title="evemu recording of the device">attachment 124173</a> <a href="attachment.cgi?id=124173&action=edit" title="evemu recording of the device">[details]</a></span>
evemu recording of the device
When using two finger scrolling the cursor jumps and the Xorg.0.log gets full
of errors like:
[ 2367.177] (EE) libinput bug: invalid tap event, no fingers are down
[ 2377.707] (EE) libinput bug: invalid tap event, no fingers are down
[ 2482.789] (EE) libinput bug: invalid tap event when fingers are up
[ 2483.981] (EE) libinput bug: invalid tap event, no fingers are down
[ 2677.826] (EE) libinput bug: invalid tap event when fingers are up
[ 2681.796] (EE) libinput bug: invalid tap event when fingers are up
[ 2698.724] (EE) kernel bug: Touch jump detected and discarded.
See <a href="https://wayland.freedesktop.org/libinput/doc/1.3.0/touchpad_jumping_cursor">https://wayland.freedesktop.org/libinput/doc/1.3.0/touchpad_jumping_cursor</a>
for details
[ 2698.915] (EE) libinput bug: invalid tap event when fingers are up
When you file a bug, please attach the following information:
* a virtual description of your input device
* the libinput version.
libinput-bin/testing,now 1.3.0-2 amd64
* the current libinput settings for the device.
Device 'SynPS/2 Synaptics TouchPad':
Device Enabled (138): 1
Coordinate Transformation Matrix (140): 1.000000, 0.000000, 0.000000,
0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
libinput Tapping Enabled (276): 1
libinput Tapping Enabled Default (277): 0
libinput Tapping Drag Enabled (278): 1
libinput Tapping Drag Enabled Default (279): 1
libinput Tapping Drag Lock Enabled (280): 0
libinput Tapping Drag Lock Enabled Default (281): 0
libinput Accel Speed (282): -0.117647
libinput Accel Speed Default (283): 0.000000
libinput Natural Scrolling Enabled (284): 0
libinput Natural Scrolling Enabled Default (285): 0
libinput Send Events Modes Available (260): 1, 1
libinput Send Events Mode Enabled (261): 0, 0
libinput Send Events Mode Enabled Default (262): 0, 0
libinput Left Handed Enabled (286): 0
libinput Left Handed Enabled Default (287): 0
libinput Scroll Methods Available (288): 1, 1, 0
libinput Scroll Method Enabled (289): 1, 0, 0
libinput Scroll Method Enabled Default (290): 1, 0, 0
libinput Disable While Typing Enabled (291): 1
libinput Disable While Typing Enabled Default (292): 1
Device Node (263): "/dev/input/event1"
Device Product ID (264): 2, 7
libinput Drag Lock Buttons (293): <no items>
libinput Horizonal Scroll Enabled (265): 1
*if the device is a touchpad or a pointing stick, the vendor model number of
your laptop, and the content of /sys/class/dmi/id/modalias.
My laptop is an Acer Aspire 5749
dmi:bvnINSYDE:bvrV1.05:bd07/28/2011:svnAcer:pnAspire5749:pvrV1.05:rvnAcer:rnHMA51_HR:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
* if the device is a touchpad, the physical dimensions of your touchpad in mm
88x46 mm</pre>
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