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GUI application display problem on S5p4418 chip Lubuntu OS

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  • M Offline
    M Offline
    manil
    wrote on last edited by
    #1

    Hi everyone,
    I am new about Qt and embedded arm. I am using a single board computer has samsung s5p4418 arm chip and Qt 5.4, my GCC 4.9.3 ans OS is lubuntu 12.04. After completed cross compile and Qt setups, I try to run all Qt GUI examples, but I faced a silly problem which when I move the mouse pointer above GUI example, mouse pointer deletes view of example step by step. The other examples, is not GUI, works fine, there is no problem.
    Is there any one to help me about that? Any idea?
    Thank you

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi and welcome to devnet,

      Did you check that don't have anything else running on the device where you show the application GUI ?

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • M Offline
        M Offline
        manil
        wrote on last edited by
        #3

        Yes I checked, nothing is running. GUI is running on Lubuntu desktop. And also rollbar, exit button, fullscreen button on the top of the GUI doesn't appear.

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          So what plugin are you using to run your application on your device ?

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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          • M Offline
            M Offline
            manil
            wrote on last edited by
            #5

            I am not sure I understand what you mean sorry but there is Qt's own plugins files in both device and project.

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #6

              I mean: are you using the xcb backend ? eglfs ? linuxfb ? etc.

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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              • M Offline
                M Offline
                manil
                wrote on last edited by
                #7

                ahh. I am using linuxfb.

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                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #8

                  Do you have a console active on the frame buffer device ?

                  Interested in AI ? www.idiap.ch
                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                  • M Offline
                    M Offline
                    manil
                    wrote on last edited by
                    #9

                    No,I don't have.

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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #10

                      No X server running on the device ?

                      Interested in AI ? www.idiap.ch
                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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