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  1. Qt
  2. QTBUG-116857

[Windows] [D3D11] Calling SetWindowDisplayAffinity() breaks scene geometry

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    • Windows

    Description

      Calling SetWindowDisplayAffinity() with any flag on a main window breaks the scene geometry.
      Relevant only for D3D11 RHI backend (default on Windows), not reproducible with OpenGL RHI.

       

      See simple demo project WindowAffinity.zip

      Steps to reproduce:
      1. Build and run sample project
      2. Push the button
      3. Observe the window

       

       

      Actual results: all Quick scene is shifted at the top left, visual artifacts, etc
      Expected results: no side effects

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-123523 After connecting a second monitor and blocking the session, visual artifacts appear

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Reported
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              qt.team.graphics.and.multimedia Qt Graphics Team
              studiosus Vladimir Belyavsky
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              Dates

                Created:
                Updated:

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