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  1. Qt
  2. QTBUG-27266

Windows: QGLWidget causes lock up when window resizes/moves (MSVC2012 + Window 7 only).

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Details

    • Bug
    • Resolution: Done
    • P2: Important
    • 5.1.1, 5.2.0
    • 4.8.3, 4.8.4, 5.1.0 Beta 1
    • Core: Event loop, GUI: OpenGL
    • Windows 7, Visual Studio 2012
    • Qt 5: aa1b4c0943187d82e0c313b93559e99226a9c75a Qt 5 : 882e01a94f83bc1625d68b279cdde9a38dae0166 , 54f1d7e2e48b896755aa930ee7e4ecacf51bf977, Qt 4: aea654b84713b8085ee0a291e3325b1ca53080aa

    Description

      Behaviour described in QTBUG-18852 reappeared again when building QT application in Microsoft Visual Studio 2012. Using QTimer for animating QGlWidget with intervals < 20 causes window lockups on window move, and total application freeze when right mouse button is invoked on window title bar. More lower QTimer interval is, more severe behaviour is. Same code build in MSVS10 works fine. Testing revealed, problems arise even when QTimer is not connected to animating slot, simple starting it with low interval causes mess with windows.
      (https://bugreports.qt-project.org/browse/QTBUG-18852)

      Attachments

        1. qtbug27266.tar
          10 kB
        2. qtbug27266_timer.tar
          10 kB
        3. MyWindow.h
          0.3 kB
        4. main.cpp
          0.2 kB

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-18852 QGLWidget causes lock up when window resizes/moves

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-32257 framerate dropped from 900 to 50 when switching from 5.0.2 to 5.1

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-31068 Windows 7 (VS2012 runtime): quick/demos/maroon/ example application jams windows if window menu opened

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
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              kleint Friedemann Kleint
              eddie_br Petr Dannhofer
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              Dates

                Created:
                Updated:
                Resolved:

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