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  1. Qt
  2. QTBUG-64631

Widget applications freeze when dragging to resize in Weston and Qt Wayland Compositors

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 5.10.0, 5.9.4
    • 5.9.3, 5.10.0 Beta 3, 5.10.0 Beta 4
    • QPA: Wayland
    • None

    Description

      To reproduce, start a widget example i.e. wiggly on weston or pure-qml and drag the window borders. The Application will freeze after a few frames.

      This regression happened in https://codereview.qt-project.org/#/c/208855/

      Not all compositors send a number of release events that matches the number of attaches the client does, so the client hangs waiting for the compositor to release the buffer.

      Gnome-shell and kwin sends multiple releases, but not Weston and Qt compositors do not. As far as I can tell, what should happen is undefined in the protocol (and racy in the Weston/Qt Wayland case), so we should try to figure out if we can avoid attaching multiple times.

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        For Gerrit Dashboard: QTBUG-64631
        # Subject Branch Project Status CR V

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            johanhelsing Johan Helsing
            johanhelsing Johan Helsing
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            Dates

              Created:
              Updated:
              Resolved:

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