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  1. Qt
  2. QTBUG-138679

Artifacting in webm videos in QML applications

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P2: Important P2: Important
    • None
    • 6.8.3, 6.9.1
    • Multimedia
    • None
    • Linux/Wayland

      When playing webm video in a QtQuick application, there is artifacting in the video, such as odd green lines.

       

      This can be fixed by using `QT_DISABLE_HW_TEXTURES_CONVERSION=1` environment variable.

      I've attached files for a testcase, run it inside qmlscene-qt6

       

        1. 138417.webm
          10 kB
          Akseli Lahtinen
        2. 2025-07-22-22-59-07.png
          7 kB
          Akseli Lahtinen
        3. test.qml
          1 kB
          Akseli Lahtinen
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            qtmultimediateam Qt Multimedia Team
            akselmo Akseli Lahtinen
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              Created:
              Updated:

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