[Wayland-bugs] [Bug 105370] Dragging the palm across touchpad crashes : Assertion `tp->tap.nfingers_down >= 1' failed.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105370

--- Comment #10 from quantumphoton007 at gmail.com ---
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

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