<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - TP L430 touchpad to barely usable" href="https://bugs.freedesktop.org/show_bug.cgi?id=96220#c7">Comment # 7</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - TP L430 touchpad to barely usable" href="https://bugs.freedesktop.org/show_bug.cgi?id=96220">bug 96220</a> from <a class="email" href="mailto:l-xdg@znn.info" title="lightonflux <l-xdg@znn.info>"> lightonflux</a> <pre>Before applying the changes recommended in <a href="show_bug.cgi?id=96220#c6">comment 6</a>: 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></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>