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Qt Quick Renderer 2D

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  • jsulmJ jsulm

    @Andrey-Shmelew You need it for BBB not your host PC right? Whether Qt supports OpenGL on your host PC or not is completely irrelevant for BBB. Isn't the absence of OpenGL on BBB the reason you want to have Qt Quick 2D Renderer?
    So, the question is: did you build your BBB Qt with -opengl es2 ?

    A Offline
    A Offline
    Andrey Shmelew
    wrote on last edited by
    #13

    @jsulm said in Qt Quick Renderer 2D:

    did you build your BBB Qt with -opengl es2 ?

    i don't really know...

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    • jsulmJ jsulm

      @Andrey-Shmelew You need it for BBB not your host PC right? Whether Qt supports OpenGL on your host PC or not is completely irrelevant for BBB. Isn't the absence of OpenGL on BBB the reason you want to have Qt Quick 2D Renderer?
      So, the question is: did you build your BBB Qt with -opengl es2 ?

      A Offline
      A Offline
      Andrey Shmelew
      wrote on last edited by
      #14

      @jsulm

      so after tons hours of googling i decided to instal on BBB the lastest image of debian.

      then, i updated and upgraded a system on the board.
      Now there are no errors about opengl es,
      so now when i start application with QTQuick 2.0 only these errors appear:
      QXcbConnection: Failed to get the primary output of the screen
      QXcbConnection: XCB error: 170 (Unknown), sequence: 164, resource id: 90, major code: 146 (Unknow
      n), minor code: 20.

      and... nothing else happens

      jsulmJ 1 Reply Last reply
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      • A Andrey Shmelew

        @jsulm

        so after tons hours of googling i decided to instal on BBB the lastest image of debian.

        then, i updated and upgraded a system on the board.
        Now there are no errors about opengl es,
        so now when i start application with QTQuick 2.0 only these errors appear:
        QXcbConnection: Failed to get the primary output of the screen
        QXcbConnection: XCB error: 170 (Unknown), sequence: 164, resource id: 90, major code: 146 (Unknow
        n), minor code: 20.

        and... nothing else happens

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #15

        @Andrey-Shmelew Do you have a X server running on BBB?

        https://forum.qt.io/topic/113070/qt-code-of-conduct

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        • jsulmJ jsulm

          @Andrey-Shmelew Do you have a X server running on BBB?

          A Offline
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          Andrey Shmelew
          wrote on last edited by
          #16

          @jsulm said in Qt Quick Renderer 2D:

          X server

          sorry i dont know what is this

          jsulmJ 1 Reply Last reply
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          • A Andrey Shmelew

            @jsulm said in Qt Quick Renderer 2D:

            X server

            sorry i dont know what is this

            jsulmJ Offline
            jsulmJ Offline
            jsulm
            Lifetime Qt Champion
            wrote on last edited by
            #17

            @Andrey-Shmelew Then you should read about it. It is the graphics environment used on UNIX/Linux machines. Do you have ANY graphics on your BBB (connected display with graphics, not text mode)?

            https://forum.qt.io/topic/113070/qt-code-of-conduct

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            • jsulmJ jsulm

              @Andrey-Shmelew Then you should read about it. It is the graphics environment used on UNIX/Linux machines. Do you have ANY graphics on your BBB (connected display with graphics, not text mode)?

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              Andrey Shmelew
              wrote on last edited by
              #18

              @jsulm
              yes, i have 10 inch display with HDMI, and applications that are not qtquick are running excellent on it,
              also i can run these applicastions on my host machine throught SmartTTY XmingX

              jsulmJ 1 Reply Last reply
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              • A Andrey Shmelew

                @jsulm
                yes, i have 10 inch display with HDMI, and applications that are not qtquick are running excellent on it,
                also i can run these applicastions on my host machine throught SmartTTY XmingX

                jsulmJ Offline
                jsulmJ Offline
                jsulm
                Lifetime Qt Champion
                wrote on last edited by
                #19

                @Andrey-Shmelew Are those applications GUI applications? How do you start them? And how do you start your application?

                https://forum.qt.io/topic/113070/qt-code-of-conduct

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                • jsulmJ jsulm

                  @Andrey-Shmelew Are those applications GUI applications? How do you start them? And how do you start your application?

                  A Offline
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                  Andrey Shmelew
                  wrote on last edited by Andrey Shmelew
                  #20

                  @jsulm
                  yes.
                  i take an GUI example (for example - Composition), compile it in my host machine for BBB, then i upload binary file to BBB, then i open linux on BBB and check this binary file as "make file executable" , then double click on the file and it starts,
                  all the same steps are for GUI with qtquick2.

                  while i write this post i started example clocks on my beaglebone black and it started well!

                  Thank you

                  jsulmJ 1 Reply Last reply
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                  • A Andrey Shmelew

                    @jsulm
                    yes.
                    i take an GUI example (for example - Composition), compile it in my host machine for BBB, then i upload binary file to BBB, then i open linux on BBB and check this binary file as "make file executable" , then double click on the file and it starts,
                    all the same steps are for GUI with qtquick2.

                    while i write this post i started example clocks on my beaglebone black and it started well!

                    Thank you

                    jsulmJ Offline
                    jsulmJ Offline
                    jsulm
                    Lifetime Qt Champion
                    wrote on last edited by
                    #21

                    @Andrey-Shmelew Are you still trying to use software renderer?

                    root@beaglebone:/media/rootfs/media# export QMLSCENE_DEVICE=softwarecontext
                    root@beaglebone:/media/rootfs/media# ./noopengl
                    

                    https://forum.qt.io/topic/113070/qt-code-of-conduct

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                    • jsulmJ jsulm

                      @Andrey-Shmelew Are you still trying to use software renderer?

                      root@beaglebone:/media/rootfs/media# export QMLSCENE_DEVICE=softwarecontext
                      root@beaglebone:/media/rootfs/media# ./noopengl
                      
                      A Offline
                      A Offline
                      Andrey Shmelew
                      wrote on last edited by
                      #22

                      @jsulm

                      no, i am not using software renderer,
                      i just compile and download clocks example, but it works slowly

                      1 Reply Last reply
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