<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 - Dragging the palm across touchpad crashes : Assertion `tp->tap.nfingers_down >= 1' failed."
href="https://bugs.freedesktop.org/show_bug.cgi?id=105370">105370</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Dragging the palm across touchpad crashes : Assertion `tp->tap.nfingers_down >= 1' failed.
</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>Linux (All)
</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>quantumphoton007@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=137829" name="attach_137829" title="Stacktrace of crash">attachment 137829</a> <a href="attachment.cgi?id=137829&action=edit" title="Stacktrace of crash">[details]</a></span>
Stacktrace of crash
I dragged my palm across the touchpad and X crashed. I have attached what X
printed as `err.log`. Simply stating,
`../libinput-1.10.1/src/evdev-mt-touchpad-tap.c:1028: tp_tap_handle_state:
Assertion `tp->tap.nfingers_down >= 1' failed`.
The weird thing is, when I `modprobe psmouse synaptics_intertouch=1`, this
crash doesn't occur however weird I try dragging my palm across the touchpad.
But on unloading and `modprobe psmouse synaptics_intertouch=0` and then
dragging my palm across, this crash happens.
$ udevadm info /sys/class/input/event16
P: /devices/rmi4-00/input/input18/event16
N: input/event16
E: DEVNAME=/dev/input/event16
E: DEVPATH=/devices/rmi4-00/input/input18/event16
E: ID_BUS=rmi
E: ID_INPUT=1
E: ID_INPUT_HEIGHT_MM=53
E: ID_INPUT_TOUCHPAD=1
E: ID_INPUT_TOUCHPAD_INTEGRATION=internal
E: ID_INPUT_WIDTH_MM=98
E: ID_SERIAL=noserial
E: LIBINPUT_DEVICE_GROUP=1d/6cb/0:rmi4-00
E: MAJOR=13
E: MINOR=80
E: SUBSYSTEM=input
E: USEC_INITIALIZED=15414239
$ libinput --version
1.10.1
Vendor : Dell Inspiron 3537
$ cat /sys/class/dmi/id/modalias
dmi:bvnDellInc.:bvrA09:bd08/25/2016:svnDellInc.:pnInspiron3537:pvrA09:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvrA09:
Physical Dimension of touchpad (the actual area, without including buttons)
Width = 10.8 cm
Height = 6.1 cm
The touchpad has two physical buttons (L, R)</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>