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Cross Compiling on BeagleBone Black

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  • S Offline
    S Offline
    SPRB
    wrote on last edited by
    #23

    I also tried several ways for getting the text displayed. Like setting the QT_QWS_FONTDIR to my font dir, By setting the QWS_DISPLAY, also I tried to run the application by giving the following command: "./Test -qws -font unicode" but couldn't achieve any success.

    Please direct me where I am going wrong.
    Waiting for an helpful suggestion.

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #24

      What output do you get on your console when running your application ?

      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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      • S Offline
        S Offline
        SPRB
        wrote on last edited by
        #25

        The UI is being displayed as a output but none of the texts are shown.

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #26

          Are you running it directly on the target or using ssh/serial console ?

          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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          • S Offline
            S Offline
            SPRB
            wrote on last edited by
            #27

            I am deploying the application into target using Qtcreator itself. As Qtcreator provides that options.

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #28

              What language are you using for your application ?

              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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              • S Offline
                S Offline
                SPRB
                wrote on last edited by
                #29

                I am using "English" language itself.

                Now I am trying to run my application which also includes images of type ".png", but now application is not at all running, now I am getting an error in console like :
                "QFSFileEngine::open: No file name specified.
                Bus errorixel: coordinate (-1,-1) out of range"

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                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #30

                  Looking very strange, are you sure your target Qt is properly compiled/installed ?

                  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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                  • S Offline
                    S Offline
                    SPRB
                    wrote on last edited by
                    #31

                    Ya I am sure, I dint get any errors I have installed many times without any error.

                    Can I know why that error "QFSFileEngine" error is there??
                    Though Images are there why it is unable to fetch it?

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                    • S Offline
                      S Offline
                      SPRB
                      wrote on last edited by
                      #32

                      Hi,
                      I resolved that "QFSFileEngine" error, it was searching for a file which I have specified in my application as I had not deployed that I was getting that error.

                      Now I am getting an error like:
                      "Cannot open input device '/dev/tty0':Permission denied
                      QImage::pixel: coordinate (-1,-1) out of range
                      Bus error
                      ".

                      Please help me why this Bus error is coming?

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                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #33

                        It seems you do not have the rights to access the console, what are the rights of /dev/tty0 ?

                        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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                        • S Offline
                          S Offline
                          SPRB
                          wrote on last edited by
                          #34

                          Rights for /dev/tty0 is "root tty"

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                          • SGaistS Offline
                            SGaistS Offline
                            SGaist
                            Lifetime Qt Champion
                            wrote on last edited by
                            #35

                            Are you running your application as root ?

                            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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                            • S Offline
                              S Offline
                              SPRB
                              wrote on last edited by
                              #36

                              No I am not running as a root.
                              If I run as a root I am getting the following error:
                              "Qt for Embedded Linux data diirectory is not owned by user 0: /tmp/qtembedded-0"

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                              • SGaistS Offline
                                SGaistS Offline
                                SGaist
                                Lifetime Qt Champion
                                wrote on last edited by
                                #37

                                Either:

                                • Add you user to the tty group
                                • Delete /tmp/qtembedded-0 and restart your application

                                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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