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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - libinput: Palm detection does not seem to work at all for Lenovo X1 Carbon Sixth Generation"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105908#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - libinput: Palm detection does not seem to work at all for Lenovo X1 Carbon Sixth Generation"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105908">bug 105908</a>
from <span class="vcard"><a class="email" href="mailto:peter.hutterer@who-t.net" title="Peter Hutterer <peter.hutterer@who-t.net>"> <span class="fn">Peter Hutterer</span></a>
</span></b>
<pre>What am I looking at here? I can see a few movements and a few taps. They all
seem to be correctly sending events. But what am I supposed to be looking for
here? There are some touches that look large enough to be possible palms but
the touchpad doesn't have a palm threshold defined.
So the first course of action would be to run the "libinput measure
touchpad-pressure" tool to figure out the touch ranges. Once you've narrowed
those down, a hwdb entry can be added and that should make at least the
high-pressure palm interference go away. See this link for the details:
<a href="https://wayland.freedesktop.org/libinput/doc/latest/touchpad_pressure.html">https://wayland.freedesktop.org/libinput/doc/latest/touchpad_pressure.html</a></pre>
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