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  1. Qt
  2. QTBUG-59794

REG 5.9.x->5.12: Windows: Menus have wrong size when AA_EnableHighDpiScaling is set

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Details

    • 9ad0e09f5bbaab8ced2ea6bb175bbd13935413cf

    Description

      1. Have a primary UHD-screen scaled to 200% and a secondary FullHD-screen scaled to 100%.
      2. Open the Main Window example.
        It's in Examples\Qt-5.9\widgets\mainwindows\mainwindow\mainwindow.pro
      3. At the very beginning of main.cpp the main function, add the line: 
        QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
      4. Build and run the example.
      5. Move the example's window to the secondary screen.
      6. Right-click into one of the dock windows.
        The appearing context menu is far too small:
      7. Right-click into the same dock window again.
        Now the context menu has the right size.
      8. Move the example's window to the primary screen.
      9. Right-click into one of the dock windows.
        The appearing context menu is far too big:
      10. Right-click into the same dock window again.
        Now the context menu has the right size.

      The context menus should always have the right size. With Qt 5.8 this used to work correctly.

      Attachments

        1. truncatedmenu.py
          1 kB
        2. truncatedmenu.py
          1 kB
        3. tooSmall.png
          tooSmall.png
          3 kB
        4. tooBig.png
          tooBig.png
          32 kB
        5. second-click.png
          second-click.png
          43 kB
        6. screenshot-1.png
          screenshot-1.png
          24 kB
        7. qtdiag2.txt
          6 kB
        8. qtdiag.txt
          7 kB
        9. qtbug59794.zip
          2 kB
        10. qtbug59794_diag.diff
          0.4 kB
        11. first-click.png
          first-click.png
          51 kB

        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-62152 Menus have wrong size after the window has been moved to a monitor with a differnt DPI

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-64647 QQC Menu shows up on wrong display after changing primary display (adding/removing monitor to/from laptop via USB)

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-73231 When a menubar spans across displays using different DPIs then opening menus on either display can show the menu in the wrong place

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
          resulted from

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-59484 [REG 5.8 -> 5.9] Windows: When showing a menu of app on secondary screen in HighRes/LowRes multimonitor setup with HighDpiScaling active, app gets stuck moving the menu between screens

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
          For Gerrit Dashboard: QTBUG-59794
          # Subject Branch Project Status CR V
          203545,1 QMenu: Fix size on high DPI + multi screen dev qt/qtbase Status: ABANDONED 0 0
          203551,7 QMenu: Fix size on high DPI + multi screen 5.9 qt/qtbase Status: MERGED +2 0
          211988,4 QMenu: Corner case size fix (high DPI + multi screen) 5.9 qt/qtbase Status: MERGED +2 0
          262490,4 QMenu size fix - Mark items dirty on screen change 5.12 qt/qtbase Status: MERGED +2 0

          Activity

            People

              tmartsum Thorbjørn Lund Martsum
              rlohning Robert Löhning
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              Dates

                Created:
                Updated:
                Resolved:

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