I can confirm the behavior on a magic trackpad. I believe the issue is
the touch configuration stabilization timeout. This timeout is for a
reasonable length of time allowed between touches becoming active.
Without this timeout, one would have to touch all four fingers at the
exact same time or else other gestures may fire.
We need to look into increasing this timeout value.
** Project changed: utouch => utouch-grail
** Changed in: utouch-grail
Importance: Undecided => Medium
** Changed in: utouch-grail
Status: New => Triaged
** Package changed: unity (Ubuntu) => utouch-grail (Ubuntu)
** Changed in: utouch-grail (Ubuntu)
Importance: Undecided => Medium
** Changed in: utouch-grail (Ubuntu)
Status: New => Triaged
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https://bugs.launchpad.net/bugs/748282
Title:
4-finger drag also registers 3-finger tap simultaneously
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