Bug 104985 - Intuos paper generating button click on palm off
Summary: Intuos paper generating button click on palm off
Alias: None
Product: Wayland
Classification: Unclassified
Component: libinput (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Wayland bug list
QA Contact:
Depends on: 104986
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Reported: 2018-02-07 04:51 UTC by Peter Hutterer
Modified: 2018-02-22 22:30 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:


Description Peter Hutterer 2018-02-07 04:51:34 UTC
Lifting the stylus out of proximity at the same time as lifting the palm off the touchpad generates some pointer events, usually a button click. This is caused by the in-kernel touch arbitration - after the stylus moves out of proximity the palm is still touching and generates one or two touch events. These trigger a click through the tapping code.

We'll need some workaround with a timer after proximity out before we accept new touches.
Comment 2 Peter Hutterer 2018-02-22 22:30:00 UTC
commit 2a378beab032d742770e24a6822378faa90cf1f6 
Author: Peter Hutterer <peter.hutterer@who-t.net>
Date:   Mon Feb 19 14:00:42 2018 +1000

    touchpad: delay arbitration by 90ms after touch toggle

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