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  1. Qt
  2. QTBUG-66092

UWP: Redraw must be triggered manually after moving to different screen

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P2: Important P2: Important
    • None
    • 5.10.1, 5.12.0 Beta 2
    • GUI: Painting
    • None
    • Windows 10 64 bit
      primary UHD-screen scaled to 200%, connect via mDP
      secondary FullHD-screen scaled to 100%, connected via DVI
    • WinRT

      1. Have a primary UHD-screen scaled to 200% and a secondary FullHD-screen scaled to 100%.
      2. Run the example "Qt Quick Controls 2 - Gallery" on the primary screen.
        It's in Examples\Qt-5.10.1\quickcontrols2\gallery\gallery.pro
      3. Move the example to the secondary screen.
        It will be resized so it has the same physical size, but less pixels. The window's content will not be redrawn correctly:
      4. Resize the example's window.
        This will trigger redrawing:

      The window should be redrawn automatically in step 3.

        1. redrawn.png
          redrawn.png
          16 kB
        2. onsecond.png
          onsecond.png
          11 kB
        3. onfirst.png
          onfirst.png
          35 kB
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            owolff Oliver Wolff
            rlohning Robert Löhning
            Veli-Pekka Heinonen Veli-Pekka Heinonen
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              Created:
              Updated:

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