[Wayland-bugs] [Bug 88037] Touchpad doesn't obey as expected (cursor doesn't move at all)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88037

--- Comment #2 from Peter Hutterer <peter.hutterer at who-t.net> ---
ok, found out the reason. You're starting on the far left of the touchpad, the
slow movement causes palm detection to trigger. That touchpoint is then
designated a palm, even if it moves around erratically after that.

We mitigate this by doing movement analysis at the beginning of the touch but
the slow movement you're starting makes that not trigger (200ms timeout for
moving out of the zone). See this page for details:
http://wayland.freedesktop.org/libinput/doc/latest/palm_detection.html

I'm inclined to treat this as WONTFIX, mainly because I don't know how to make
this work any other way. Palm data is so unreliable and all over the place that
we can't do anything else that's reliable.

To confirm: this bug should only trigger if you start on the left or right edge
of the touchpad, not if you start in the middle. correct?

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/wayland-bugs/attachments/20150107/5b312677/attachment.html>