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could not find qtplatfom plugin eglfs

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  • jsulmJ jsulm

    @Asha Well, I think I already mentioned this once: you have to know what your device actually uses. Is it X11, eglfs, linuxfb, ...?

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    Asha
    wrote on last edited by
    #30

    @jsulm

    can you please tell me more about X11,or any link..what exactly it will do?

    jsulmJ 1 Reply Last reply
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    • A Asha

      @jsulm

      can you please tell me more about X11,or any link..what exactly it will do?

      jsulmJ Offline
      jsulmJ Offline
      jsulm
      Lifetime Qt Champion
      wrote on last edited by
      #31

      @Asha Google knows https://en.wikipedia.org/wiki/X_Window_System

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

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      • jsulmJ jsulm

        @Asha Google knows https://en.wikipedia.org/wiki/X_Window_System

        A Offline
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        Asha
        wrote on last edited by
        #32

        @jsulm It means first i need to find which backend is running on my device ,based on that I need to cross compile the qt?

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        • A Asha

          @jsulm It means first i need to find which backend is running on my device ,based on that I need to cross compile the qt?

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #33

          @Asha said in could not find qtplatfom plugin eglfs:

          i need to find which backend is running on my device

          yes

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

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          • jsulmJ jsulm

            @Asha said in could not find qtplatfom plugin eglfs:

            i need to find which backend is running on my device

            yes

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            A Offline
            Asha
            wrote on last edited by
            #34

            @jsulm after finding ,again i need to build ,cross compiled qt?

            jsulmJ 1 Reply Last reply
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            • A Asha

              @jsulm after finding ,again i need to build ,cross compiled qt?

              jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #35

              @Asha If you did not cross compile needed platform plug-in then yes

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

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              • jsulmJ jsulm

                @Asha If you did not cross compile needed platform plug-in then yes

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                Asha
                wrote on last edited by
                #36

                @jsulm Hi,

                I flashed my board with debian image...any idea which plugin is running on that image...

                I got the answer ,we are using linux backend...

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                • A Offline
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                  Asha
                  wrote on last edited by
                  #37

                  for eglfs plugin ,which packages are required and how to install those?

                  jsulmJ 1 Reply Last reply
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                  • A Asha

                    for eglfs plugin ,which packages are required and how to install those?

                    jsulmJ Offline
                    jsulmJ Offline
                    jsulm
                    Lifetime Qt Champion
                    wrote on last edited by
                    #38

                    @Asha Please take a look at https://doc.qt.io/qt-5/embedded-linux.html
                    "we are using linux backend" - which one?

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

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                    • jsulmJ jsulm

                      @Asha Please take a look at https://doc.qt.io/qt-5/embedded-linux.html
                      "we are using linux backend" - which one?

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                      Asha
                      wrote on last edited by
                      #39

                      @jsulm I asked,which backend is running on board?

                      got the ans:linux

                      shall I ask more about backend or any link?

                      jsulmJ 1 Reply Last reply
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                      • A Asha

                        @jsulm I asked,which backend is running on board?

                        got the ans:linux

                        shall I ask more about backend or any link?

                        jsulmJ Offline
                        jsulmJ Offline
                        jsulm
                        Lifetime Qt Champion
                        wrote on last edited by
                        #40

                        @Asha We know from the beginning that the OS is Linux. Linux is an operating system supporting different technologies for graphics, like: X11, directfb, eglfs, ...
                        These technologies is what is called "backends" in Qt.

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

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                        • jsulmJ jsulm

                          @Asha We know from the beginning that the OS is Linux. Linux is an operating system supporting different technologies for graphics, like: X11, directfb, eglfs, ...
                          These technologies is what is called "backends" in Qt.

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                          Asha
                          wrote on last edited by
                          #41

                          @jsulm Hi ,Thank you for you guide...

                          I found which plugin is running on my board,
                          That is eglfs only,

                          with this link https://doc.qt.io/qt-5/embedded-linux.html

                          for beagleboneboard my build directory is Qt5,

                          I got the information in the folder below

                          cd /home/beagle/Qt5/mkspecs/devices/linux-beagleboard-g++/qmake.conf

                          in qmake.conf file

                          QT_QPA_DEFAULT_PLATFORM = eglfs

                          so now,how to proceed next?

                          can i change the QT_QPA_DEFAULT_PLATFORM in that file ?

                          or need to configure with eglfs only?

                          jsulmJ 1 Reply Last reply
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                          • A Asha

                            @jsulm Hi ,Thank you for you guide...

                            I found which plugin is running on my board,
                            That is eglfs only,

                            with this link https://doc.qt.io/qt-5/embedded-linux.html

                            for beagleboneboard my build directory is Qt5,

                            I got the information in the folder below

                            cd /home/beagle/Qt5/mkspecs/devices/linux-beagleboard-g++/qmake.conf

                            in qmake.conf file

                            QT_QPA_DEFAULT_PLATFORM = eglfs

                            so now,how to proceed next?

                            can i change the QT_QPA_DEFAULT_PLATFORM in that file ?

                            or need to configure with eglfs only?

                            jsulmJ Offline
                            jsulmJ Offline
                            jsulm
                            Lifetime Qt Champion
                            wrote on last edited by
                            #42

                            @Asha What did configure say about eglfs? Was it activated?

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

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                            • jsulmJ jsulm

                              @Asha What did configure say about eglfs? Was it activated?

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                              Asha
                              wrote on last edited by
                              #43

                              @jsulm I gone through this link,https://doc.qt.io/qt-5.12/embedded-linux.html

                              please go through the selected paragraph in the below screenshot,eglfs.png
                              in the mentioned the path i got it(dont no its currect or not just guessed)

                              jsulmJ 1 Reply Last reply
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                              • A Offline
                                A Offline
                                Asha
                                wrote on last edited by
                                #44

                                how to proceed next?

                                1 Reply Last reply
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                                • A Asha

                                  @jsulm I gone through this link,https://doc.qt.io/qt-5.12/embedded-linux.html

                                  please go through the selected paragraph in the below screenshot,eglfs.png
                                  in the mentioned the path i got it(dont no its currect or not just guessed)

                                  jsulmJ Offline
                                  jsulmJ Offline
                                  jsulm
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #45

                                  @Asha said in could not find qtplatfom plugin eglfs:

                                  in the mentioned the path i got it(dont no its currect or not just guessed)

                                  Sorry, I don't get it. What was the output of configure? Did it say eglfs was activated?

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

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                                  • jsulmJ jsulm

                                    @Asha said in could not find qtplatfom plugin eglfs:

                                    in the mentioned the path i got it(dont no its currect or not just guessed)

                                    Sorry, I don't get it. What was the output of configure? Did it say eglfs was activated?

                                    A Offline
                                    A Offline
                                    Asha
                                    wrote on last edited by
                                    #46

                                    @jsulm

                                    I have extracted qt source code,that can be mmoved in QT5 directory,

                                    in QT5/qtbase/mkspecs/devices/linux-beagleboard-g++/qmake.conf file,

                                    the line presene QT_QPA_DEFAULT_PLATFORM= eglfs...

                                    so now i need to configure,

                                    I need to mentioned eglfs in my configure line,so

                                    ./configure -platform linux-g++ -release -device linux-beagleboard-g++ -sysroot /home/beagle/BB/sysroot -prefix /home/debian/Qt5ForBBB -hostprefix ~/Qt5ForBBB -device-option CROSS_COMPILE="path" -egl -eglfs -nomake tests -nomake examples -skip qtconnectivitty -recheck-all -v

                                    this is correct?

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                                    • jsulmJ jsulm

                                      @Asha said in could not find qtplatfom plugin eglfs:

                                      in the mentioned the path i got it(dont no its currect or not just guessed)

                                      Sorry, I don't get it. What was the output of configure? Did it say eglfs was activated?

                                      A Offline
                                      A Offline
                                      Asha
                                      wrote on last edited by
                                      #47

                                      @jsulm eglfs is not activated,how do i activate it?

                                      jsulmJ 1 Reply Last reply
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                                      • A Asha

                                        @jsulm eglfs is not activated,how do i activate it?

                                        jsulmJ Offline
                                        jsulmJ Offline
                                        jsulm
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #48

                                        @Asha said in could not find qtplatfom plugin eglfs:

                                        how do i activate it?

                                        Check the configure log to see what was missing (I'm quite sure that I already suggested that before).

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

                                        A 1 Reply Last reply
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                                        • jsulmJ jsulm

                                          @Asha said in could not find qtplatfom plugin eglfs:

                                          how do i activate it?

                                          Check the configure log to see what was missing (I'm quite sure that I already suggested that before).

                                          A Offline
                                          A Offline
                                          Asha
                                          wrote on last edited by
                                          #49

                                          @jsulm Hi,

                                          about eglfs i got this type error,

                                          looking for library opengl_es2
                                          Trying source 0 (type pkgConfig) of library opengl_es2 ...

                                          • PKG_CONFIG_SYSROOT_DIR=/home/beagle/BB/sysroot PKG_CONFIG_LIBDIR=/home/beagle/BB/sysroot/usr/lib/pkgconfig:/home/beagle/BB/sysroot/usr/share/pkgconfig:/home/beagle/BB/sysroot/usr/lib/arm-linux-gnueabihf/pkgconfig /usr/bin/pkg-config --exists --silence-errors glesv2
                                            pkg-config did not find package.
                                            => source produced no result.
                                            Trying source 1 (type makeSpec) of library opengl_es2 ...
                                            None of [libGLESv2.so libGLESv2.a] found in [] and global paths.
                                            None of [libEGL.so libEGL.a] found in [] and global paths.
                                            None of [libIMGegl.so libIMGegl.a] found in [] and global paths.
                                            None of [libsrv_um.so libsrv_um.a] found in [] and global paths.
                                            => source produced no result.
                                            test config.qtbase_gui.libraries.opengl_es2 FAILED

                                          Any ideas ,how do I slove this?

                                          1 Reply Last reply
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