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  1. Qt
  2. QTBUG-137042

Updating a hidden window causes QSGTextures to never be released

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P1: Critical P1: Critical
    • None
    • 5.12, 5.15
    • Quick: SceneGraph
    • None

      With the Basic renderer on Qt 5.12.10+, hidden windows can be marked as updatePending due to updates in the scenegraph, but this results in QSGRenderer::renderWindow::lastDirtyWindow always being false. As such, rc->endSync() never getting called and memory piling up until the window is shown again, deleted or the app crashes.

       

      MVP attached.

        1. HiddenWindowMemoryLeakDemo-1.zip
          3 kB
          Mairtin Steinkamp
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            janichol Andy Nichols
            mairtin.s Mairtin Steinkamp
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              Created:
              Updated:

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