With the disable-while-typing palm detection timeout, a touch starting within the timeout won't be able to control the cursor once the timeout expires. That looked good on paper (resting the palm on the touchpad is possible) but is quite annoying in practice. We need to be smarter here, probably best add some motion threshold so that if a touch moves beyond that threshold after the timeout it is released for pointer control.
http://lists.freedesktop.org/archives/wayland-devel/2015-May/022219.html
commit 8d7a1c174b26d0dbbf880c5c01c1cdecc4ae3cdd Author: Peter Hutterer <peter.hutterer@who-t.net> Date: Thu May 21 16:32:42 2015 +1000 touchpad: touches after the last key press can be released
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