https://bugs.freedesktop.org/show_bug.cgi?id=96220
--- Comment #7 from lightonflux <[email protected]> ---
Before applying the changes recommended in comment 6:
The touchpad-edge-detector tool is part of the libevdev-tools package on Debian
and Ubuntu.
sudo touchpad-edge-detector /dev/input/event6
Touchpad ETPS/2 Elantech Touchpad on /dev/input/event6
Move one finger around the touchpad to detect the actual edges
Kernel says: x [0..2204], y [0..1160]
Touchpad sends: x [23..2176], y [23..1134] \^C
Touchpad size as listed by the kernel: 71x37mm
Calculate resolution as:
x axis: 2204/<width in mm>
y axis: 1160/<height in mm>
Suggested udev rule:
# <Laptop model description goes here>
evdev:name:ETPS/2 Elantech
Touchpad:dmi:bvnLENOVO:bvrG3ETA5WW(2.65):bd10/20/2015:svnLENOVO:pn2464A26:pvrThinkPadL430:rvnLENOVO:rn2464A26:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:*
EVDEV_ABS_00=23:2176:<x resolution>
EVDEV_ABS_01=23:1134:<y resolution>
EVDEV_ABS_35=23:2176:<x resolution>
EVDEV_ABS_36=23:1134:<y resolution>
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