Interface chaos for Qt 5.9.1 Demo



  • I wrote a C++ Qt GUI project in Qt 5.7. Currently I try to migrate it to 5.9.1. I found that the menu bar and tool bar were messed up. It looks like all the interface has an offset downward.

    I opened a Qt built-in example "Qt Simple Browser" and found the same issue.

    0_1506923639572_2f629597-612b-4fd9-a9c4-dc3bcfa3528c-image.png

    There is a large space between the title bar and the menu bar. Actually the menu bar is at the space. So if I click the space, in fact I am clicking the menu.

    0_1506923764895_f142f69e-7c8f-47e3-b75a-9801f625cc43-image.png

    Any ideas? Thanks very much!

    0_1506923802867_51fb6ee5-e0a8-469d-8960-c818d8320a67-image.png



  • I found this after changing the search keyword: QML Display Bug

    Then I upgrade the display card driver, and it works! So Qt 5.7 is OK with the older driver whilie 5.9.1 is not.


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