[Wayland-bugs] [Bug 96710] Middle click area is too large / inconsistent with physical marks (Dell XPS 13 9350)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96710

--- Comment #2 from Andy Lutomirski <luto at kernel.org> ---
Looks okay to me:

$ sudo touchpad-edge-detector /dev/input/event11
Touchpad DLL0704:01 06CB:76AE Touchpad on /dev/input/event11
Move one finger around the touchpad to detect the actual edges
Kernel says:    x [0..1216], y [0..680]
Touchpad sends: x [0..1216], y [0..680] -|||
^C

Touchpad size as listed by the kernel: 101x56mm
Calculate resolution as:
        x axis: 1216/<width in mm>
        y axis: 680/<height in mm>

Suggested udev rule:
# <Laptop model description goes here>
evdev:name:DLL0704:01 06CB:76AE
Touchpad:dmi:bvnDellInc.:bvr1.4.3:bd06/02/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA00:cvnDellInc.:ct9:cvr:*
 EVDEV_ABS_00=0:1216:<x resolution>
 EVDEV_ABS_01=0:680:<y resolution>
 EVDEV_ABS_35=0:1216:<x resolution>
 EVDEV_ABS_36=0:680:<y resolution>


I got out a caliper, and I measure 105x59 mm, which is reasonably close to what
the kernel thinks, too.

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