[Wayland-bugs] [Bug 100571] erratic touchpad behavior, seems too sensitive to stray palm touches

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100571

--- Comment #15 from Peter Hutterer <peter.hutterer at who-t.net> ---
I understand that it's hard to remember what exactly you did, but it's even
harder to debug something without that information. The attachments look like
pretty normal touches and they *should* be filtered by the disable-while-typing
code but it's unclear why not. Maybe run libinput-debug-events --verbose on the
side and look for events of "event4  - palm: keyboard timeout". If they happen
just before your touch and you're typing slow enough, then this can cause the
effects you're seeing.

I notice the pressure range is quite high, so this bug may be a candidate for
bug 94236. Read through
https://wayland.freedesktop.org/libinput/doc/latest/touchpad_pressure.html and
try to gauge the pressure ranges for your finger during normal use and then
again while you're typing. see if there's a reliable threshold where we can
identify a palm.

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