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How to force use XCB

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eglxcb
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  • S Offline
    S Offline
    SGaist
    Lifetime Qt Champion
    wrote on 3 Feb 2016, 21:18 last edited by
    #4

    Do you mean black screen ?

    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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    • N Offline
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      Niko Hallikainen
      wrote on 4 Feb 2016, 16:27 last edited by
      #5

      yes, i get black window, program use qml.

      Br, Niko H.

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      • S Offline
        S Offline
        SGaist
        Lifetime Qt Champion
        wrote on 4 Feb 2016, 20:27 last edited by
        #6

        Any error message on the console ? Do you have a an Xorg server running ?

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

        N 2 Replies Last reply 10 Feb 2016, 19:55
        0
        • M Offline
          M Offline
          mrdebug
          wrote on 6 Feb 2016, 21:17 last edited by
          #7

          In my honest opinion you can't use Qml - Quick on xcb (On raspberry Pi) because Quick requires OpenGL ES2.
          I have built Qt 5.5.1 for Raspberry Pi in 2 different modes: the first, for QWidgets applications on XOrg (xcb) or framebuffer without OpenGL ES, and a second with OpenGL ES for applications based on Quick, without Xorg.
          After many tests I can't run a application based on QWidgets if it Qt was built with OpenGL ES.

          Need programmers to hire?
          www.labcsp.com
          www.denisgottardello.it
          GMT+1
          Skype: mrdebug

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          • S SGaist
            4 Feb 2016, 20:27

            Any error message on the console ? Do you have a an Xorg server running ?

            N Offline
            N Offline
            Niko Hallikainen
            wrote on 10 Feb 2016, 19:55 last edited by
            #8

            @SGaist No errors.

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            • S Offline
              S Offline
              SGaist
              Lifetime Qt Champion
              wrote on 10 Feb 2016, 20:17 last edited by
              #9

              Do you have an Xorg server running ?

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

              N 1 Reply Last reply 21 Feb 2016, 14:03
              0
              • S SGaist
                10 Feb 2016, 20:17

                Do you have an Xorg server running ?

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                Niko Hallikainen
                wrote on 21 Feb 2016, 14:03 last edited by
                #10

                @SGaist yes it's running

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                • S Offline
                  S Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on 21 Feb 2016, 20:41 last edited by
                  #11

                  Do you have any error appearing on the console ? How are you starting your application ? What kind of application is it ?

                  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
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                    mrdebug
                    wrote on 22 Feb 2016, 14:33 last edited by
                    #12

                    I hope you will resolve yourself.
                    Anyway I have a lot of open projects based on Raspberry Pi, someone is a console application, some other is xcb, some other QtQuick with OpenGL ES. If you require to have professional support please contact me. I'm gmt+1 (Italy).
                    info@denisgottardello.it

                    Need programmers to hire?
                    www.labcsp.com
                    www.denisgottardello.it
                    GMT+1
                    Skype: mrdebug

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                    • S SGaist
                      4 Feb 2016, 20:27

                      Any error message on the console ? Do you have a an Xorg server running ?

                      N Offline
                      N Offline
                      Niko Hallikainen
                      wrote on 8 Mar 2016, 15:31 last edited by
                      #13

                      @SGaist Hi, I get no errors

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