Important: Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

Run example qt but nothing display on screen



  • Hello everyone,

    I have installed new window 10 and afterthat I have installed qt creator.
    Firstly, I try to run qmlvideofx but nothing to display although no error, no warning.Image is below
    Capture.PNG .
    Secondly, I continously try to run other example and run success ( example heartrate-game image below)
    Capture4.PNG
    And finally, I have write simple new project but nothing is also displayed on screen image below
    Capture3.PNG Capture2.PNG

    So I don't understand what is this problem ?.Could everybody help me fix this problem?

    Thank you



  • @mrjj
    Thank you very much ,
    I have just installed new driver gpu and try to my project. Exactly, the problem releates to openGL, my project is worked normally


  • Lifetime Qt Champion

    Hi
    Could be the openGl.
    QML needs working accelerated graphics.

    Did you install openGl / newest drivers for your gfx card ?



  • @mrjj thank you
    maybe i need to install driver for gpu. Currently, I am using nvidia quandro 2000m


  • Lifetime Qt Champion

    Hi
    well it should have openGL 4.6
    so yes, try go to nvidia site and find the driver.
    (or from laptop vendor)

    I used
    https://www.nvidia.com/Download/driverResults.aspx/160350/en-us
    for a Dell laptop and it worked but i cant promise it will on your system :)



  • @mrjj
    Thank you very much ,
    I have just installed new driver gpu and try to my project. Exactly, the problem releates to openGL, my project is worked normally



  • Kudos! Clearly this was resolved and with the ideal method.

    I just want to give a "shout out" to the excellent VirtualGL project. It has allowed me to run QML programs in instances where they otherwise would not. (On Linux, often in conjunction with Xephyr.)

    vglrun /path/to/your_binary_name
    

    The screenshots on this thread indicate Microsoft Windows. Apparently VirtualGL has a Cygwin exe release now. Just pointing this out in case others are struggling with OpenGL. (I have not tried VirtuaGL on Windows. But I love it on Linux.)


Log in to reply