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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - Dragging the palm across touchpad crashes : Assertion `tp->tap.nfingers_down >= 1' failed."
href="https://bugs.freedesktop.org/show_bug.cgi?id=105370#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - Dragging the palm across touchpad crashes : Assertion `tp->tap.nfingers_down >= 1' failed."
href="https://bugs.freedesktop.org/show_bug.cgi?id=105370">bug 105370</a>
from <span class="vcard"><a class="email" href="mailto:quantumphoton007@gmail.com" title="quantumphoton007@gmail.com">quantumphoton007@gmail.com</a>
</span></b>
<pre>Sorry for the confusion. The one with synaptics_intertouch=0 crashes, but the
other one doesn't.
$ sudo modprobe -r psmouse; sudo modprobe psmouse synaptics_intertouch=0
$ touchpad-edge-detector 108x61 /dev/input/event16
Touchpad SynPS/2 Synaptics TouchPad on /dev/input/event16
Move one finger around the touchpad to detect the actual edges
Kernel says: x [1268..5674], y [1098..4754]
Touchpad sends: x [1268..5675], y [1101..4792]
Touchpad size as listed by the kernel: 100x53mm
User-specified touchpad size: 108x61mm
Calculated ranges: 4407/3691
Suggested udev rule:
# Dell Inspiron 3537
evdev:name:SynPS/2 Synaptics
TouchPad:dmi:bvnDellInc.:bvrA09:bd08/25/2016:svnDellInc.:pnInspiron3537:pvrA09:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvrA09:*
EVDEV_ABS_00=1268:5675:41
EVDEV_ABS_01=1101:4792:61
EVDEV_ABS_35=1268:5675:41
EVDEV_ABS_36=1101:4792:61
-----------------------------------------------------------------------
$ sudo modprobe -r psmouse; sudo modprobe psmouse synaptics_intertouch=1
$ touchpad-edge-detector 108x61 /dev/input/event16
Touchpad Synaptics TM2382-001 on /dev/input/event16
Move one finger around the touchpad to detect the actual edges
Kernel says: x [0..2560], y [0..2048]
Touchpad sends: x [0..2560], y [0..2048]
Touchpad size as listed by the kernel: 98x53mm
User-specified touchpad size: 108x61mm
Calculated ranges: 2560/2048
Suggested udev rule:
# Dell Inspiron 3537
evdev:name:Synaptics
TM2382-001:dmi:bvnDellInc.:bvrA09:bd08/25/2016:svnDellInc.:pnInspiron3537:pvrA09:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvrA09:*
EVDEV_ABS_00=0:2560:24
EVDEV_ABS_01=0:2048:34
EVDEV_ABS_35=0:2560:24
EVDEV_ABS_36=0:2048:34</pre>
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