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QT QML UI is not refreshing on embedded Linux Display Unit

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  • J Offline
    J Offline
    James A
    wrote on last edited by
    #1

    Hai All,

    I am running a Qt QML application with framebuffer gui backend on touch screen display. The application is divided into header , footer and body, where the body is changed as the navigation done to different pages. Header and footer remains the same for all the pages

    Whenever I navigation to the Ui which has the scroll option and then navigate to other pages , I cloud see the previous page UI traces on the header and footer as shown in the below Image. Scrolling is implemented using Flickable QML component.

    And When I display some popup message the previous UI traces disappears. It seems like popup message is refreshing the complete UI.

    Before navigating
    19b7f4ab-f4a4-41ed-b51f-34483e654072-image.png

    After navigating and scrolling

    c9a9f850-c045-48cf-b446-3a7f452cd916-image.png

    The blue lines can be observed on header and footer of the Ui.
    How to prevent these traces appearing on the header and footers ?
    Note : This issue is not appearing when I run on the Desktop.

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