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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 jittery with psmouse.synaptics_intertouch = 1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103219">103219</a>
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<th>Summary</th>
<td>libinput jittery with psmouse.synaptics_intertouch = 1
</td>
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<th>Product</th>
<td>Wayland
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>major
</td>
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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>quantumphoton007@gmail.com
</td>
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<pre>Created <span class=""><a href="attachment.cgi?id=134793" name="attach_134793" title="evemu log for scroll (poor sensitivity)">attachment 134793</a> <a href="attachment.cgi?id=134793&action=edit" title="evemu log for scroll (poor sensitivity)">[details]</a></span>
evemu log for scroll (poor sensitivity)
I looked at my dmesg output and saw this.
'psmouse serio1: synaptics: Your touchpad (PNP: DLL05eb PNP0f13) says it can
support a different bus. If i2c-hid and hid-rmi are not used, you might want to
try setting psmouse.synaptics_intertouch to 1 and report this to
<a href="mailto:linux-input@vger.kernel.org">linux-input@vger.kernel.org</a>.'
When I set the kernel parameter and booted again, the touchpad was behaving
with the following issues :
- lower sensitivity
- accidental middle clicks (which paste whatever I previously selected)
- no acceleration
I looked at Xorg log and for both synaptics_intertouch = 0 or 1, libinput
driver was used.
Details
$ libinput --version
1.8.3
$ udevadm info /sys/class/input/event7
P: /devices/rmi4-00/input/input74/event7
N: input/event7
E: DEVNAME=/dev/input/event7
E: DEVPATH=/devices/rmi4-00/input/input74/event7
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: LIBINPUT_DEVICE_GROUP=1d/6cb/0/0:rmi4-00
E: MAJOR=13
E: MINOR=71
E: SUBSYSTEM=input
E: USEC_INITIALIZED=1260430386
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>
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