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  1. Qt
  2. QTBUG-76813

Backingstore warning messages are shown when starting animations

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Details

    • Bug
    • Status: Closed
    • P2: Important
    • Resolution: Fixed
    • 5.12.5, 5.13.0, 5.13.1, 5.13.2, 5.14.0 Beta 1
    • 5.12.6, 5.14.0 Beta2
    • QPA: Wayland
    • 9f5b96225885f927727a57b6123d8550d6c373bb (qt/qtwayland/5.15) 03e8c91fc28b77c4f027b6c6d582b85878efae41 (qt/qtwayland/5.12.6)

    Description

      In the attached example the following warning message is shown every time the user clicks on the window (running inside pure-qml):

      qt.qpa.wayland.backingstore: Delivering update request through fallback timer, may not be in sync with display
      

      The code changes the opacity of the "sign" element on every click and uses a behavior to animate it.

      The warning is only shown when the "threaded" render loop is used.

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          For Gerrit Dashboard: QTBUG-76813
          # Subject Branch Project Status CR V

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              johanhelsing Johan Helsing
              gagi Dominik Holland
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              Dates

                Created:
                Updated:
                Resolved:

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