Public bug reported:

[Impact]
Palm ejection stops working on Elan and Synaptics touchpads with
pointstick.

[Fix]
Re-apply "confidence" quirk on those devices.

[Test]
Move the palm on touchpad, cursor moves too.
With the fix applied, moving palm on touchpad won't move the cursor and
won't generate click events.

[Where problems could occur]
Not that I can think of. Originally these touchpads are working fine
with palm ejection, it's just overlooked when enabling pointsticks.

** Affects: hwe-next
     Importance: Undecided
         Status: New

** Affects: linux (Ubuntu)
     Importance: Medium
         Status: Confirmed

** Affects: linux-oem-5.10 (Ubuntu)
     Importance: Undecided
         Status: Won't Fix

** Affects: linux (Ubuntu Focal)
     Importance: Undecided
         Status: Won't Fix

** Affects: linux-oem-5.10 (Ubuntu Focal)
     Importance: Medium
         Status: Confirmed

** Affects: linux (Ubuntu Groovy)
     Importance: Medium
         Status: Confirmed

** Affects: linux-oem-5.10 (Ubuntu Groovy)
     Importance: Undecided
         Status: Won't Fix


** Tags: oem-priority originate-from-1909971 stella

** Also affects: linux (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Groovy)
   Importance: Undecided
       Status: New

** Also affects: linux-oem-5.10 (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1913520

Title:
  Restore palm ejection on multi-input devices

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