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  1. Qt
  2. QTBUG-67601

[REG 5.9.4 -> 5.9.5] Rendering of transparent QML items broken on i.MX6

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: P1: Critical P1: Critical
    • 5.9.7, 5.12.0 Alpha
    • 5.9.5, 5.9.6, 5.11.0, 5.11.1
    • QPA: Wayland, Quick: Widget
    • None
    • i.MX6 using Linux / Wayland

      meta-qt5 (latest 5.9 branch and latest update to 5.11.1)

      Image, QQuickPaintedItem and maybe others are drawn opaque when they should be transparent.

      When testing the 5.9.5 RC from the meta-qt5 repository, we notice broken rendering of our QQuickWidget based application. It seems that, while z-order is preserved, Items are not transparent any more. For example, rendering a QML Image with a transparent PNG file as source will draw the background colour over previous items, instead of showing through.

      Qt 5.9.4 and before are working without issues.

        1. QuickWidget.jpg
          QuickWidget.jpg
          212 kB
        2. QuickView.jpg
          QuickView.jpg
          229 kB
        3. qtbug-67601-demo.tar.gz
          2 kB
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            johanhelsing Johan Helsing
            seek Bernhard Hartleb
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              Created:
              Updated:
              Resolved:

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