<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Unreliable two-finger scrolling"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104734">104734</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Unreliable two-finger scrolling
</td>
</tr>
<tr>
<th>Product</th>
<td>Wayland
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</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>freedesktop@dosowisko.net
</td>
</tr></table>
<p>
<div>
<pre>One of the main issues that drive me away from any libinput-based session
towards xf86-driver-synaptics is the way two-finger scrolling is triggered -
or, actually, sometimes not triggered - with libinput (with either
xf86-driver-libinput, libinput debug tools or various Wayland compositors).
The situation: The pointer is already moving with one finger and the second
finger is placed on the touchpad.
Expected result: pointer stops to move and content starts to scroll.
Result got: pointer continues to move, no scrolling happens.
xf86-driver-synaptics detects all the two-finger scrolls reliably and works as
expected. With libinput, I always need to stop moving and only then can start
scrolling, which is extremely annoying.
dos@yoga:~$ pacman -Ss libinput
extra/libinput 1.9.4-1 [installed]
Laptop: Lenovo Yoga 900-13ISK
# DMI:
dmi:bvnLENOVO:bvrC6CN39WW:bd10/11/2016:svnLENOVO:pn80MK:pvrLenovoYOGA900-13ISK:rvnLENOVO:rnVIUU4:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoYOGA900-13ISK:
# Input device name: "Synaptics TM3066-002"
# Input device ID: bus 0x18 vendor 0x6cb product 0x77c6 version 0x100
# Size in mm: 87x57
The attached recording shows the example misinterpreted touchpad action.
libinput-debug-events.txt shows the libinput's misinterpretation. However, when
the recording is replayed with evemu-play, it's actually interpreted correctly
(as seen in libinput-debug-events-replayed.txt).</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>