Bug 104986

Summary: Palm detection on Intuos Paper not working
Product: Wayland Reporter: Peter Hutterer <peter.hutterer>
Component: libinputAssignee: Wayland bug list <wayland-bugs>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: medium CC: peter.hutterer
Version: unspecified   
Hardware: Other   
OS: All   
i915 platform: i915 features:
Bug Depends on:    
Bug Blocks: 104985    

Description Peter Hutterer 2018-02-07 05:08:53 UTC
Needs a palm threshold of ~5 to detect based on touch size, we don't have anything else we can hook onto.

The current code requires use_touch_size enabled to activate palm size, but that shouldn't be necessary for this device - our lower threshold is 0 here.

And palm detection doesn't kick in on this device because it's an external touchpad. Need to extend this to cater for tablet touch devices.

Arguably having better touch arbitration here (Bug 104985) would work too, but only for the proximity-out scenario, not necessarily for the proximity-in scenario.
Comment 1 Peter Hutterer 2018-03-05 05:56:11 UTC
commit a437d9374bc69495f7c64859dc0e1bd470d01baa
Author: Peter Hutterer <>
Date:   Fri Feb 9 12:17:38 2018 +1000

     touchpad: enable palm detection on tablets' touchpads

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