Bug 90527 - Allow resting the thumb on the touchpad while moving the pointer
Summary: Allow resting the thumb on the touchpad while moving the pointer
Status: RESOLVED FIXED
Alias: None
Product: Wayland
Classification: Unclassified
Component: libinput (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Wayland bug list
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Depends on: 90528
Blocks:
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Reported: 2015-05-20 05:16 UTC by Peter Hutterer
Modified: 2015-08-05 05:18 UTC (History)
1 user (show)

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Description Peter Hutterer 2015-05-20 05:16:58 UTC 
Follow-up from Bug 90261.

Resting the thumb on the touchpad causes scroll events when the finger is moved.

Two immediate ideas come to mind here:
* define some sort of exclusion zone on the touchpad where the thumb may come to rest, similar to software buttons
* define some maximum distance threshold for a touch to count as two-finger scroll, which would probably go hand-in-hand with Bug 90526

Ideally we could identify a thumb, but that's likely only possible on the apple touchpads.
Comment 1 Peter Hutterer 2015-07-09 02:48:27 UTC 
mostly fixed with the commit below. if the thumb rests at the very edge of the touchpad, the pressure detection may not work though.


commit 3dcf28b919ae598506852b408829a6627168e803
Author: Peter Hutterer <peter.hutterer@who-t.net>
Date:   Wed May 27 18:25:49 2015 +1000

    touchpad: add pressure-based thumb-detection
Comment 2 Peter Hutterer 2015-08-05 05:18:02 UTC 
commit 988f31fc4a7a6c7d0b6e20f77ea7093afd0ef37a
Merge: 5571f2d 2c78149
Author: Peter Hutterer <peter.hutterer@who-t.net>
Date:   Fri Jul 24 09:19:08 2015 +1000

    Merge branch 'thumb-detect-improvements'

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