[Wayland-bugs] [Bug 104986] Palm detection on Intuos Paper not working

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104986

            Bug ID: 104986
           Summary: Palm detection on Intuos Paper not working
           Product: Wayland
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: libinput
          Assignee: wayland-bugs at lists.freedesktop.org
          Reporter: peter.hutterer at who-t.net
            Blocks: 104985

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.


Referenced Bugs:

https://bugs.freedesktop.org/show_bug.cgi?id=104985
[Bug 104985] Intuos paper generating button click on palm off
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