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  4. [Solved] Upgraded from Qt 5.2.1 to 5.3.1, LinuxFb is not working
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[Solved] Upgraded from Qt 5.2.1 to 5.3.1, LinuxFb is not working

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  • S Offline
    S Offline
    Sidii
    wrote on last edited by
    #1

    Hi all,
    Today only i upgraded my QT (downloaded the source for 5.3.1 and cross compiled it) When i did it for QT 5.2 i used

    @-qpa -LinuxFb@

    while giving configure command.

    But when i did the same for QT 5.3.1 i am getting error:

    @
    This application failed to start because it could not find or load the Qt platform plugin "linuxfb".

    Available platform plugins are: linuxfb, minimal, offscreen.

    Reinstalling the application may fix this problem.
    Aborted (core dumped)
    @

    Kindly share your opinions.

    Thanks

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

      Hi,

      Try again setting QT_DEBUG_PLUGINS=1 to see what happens with your plugin

      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
        Sidii
        wrote on last edited by
        #3

        Thanks SGaist.

        When i did

        @ldd libqlinuxfb.so@

        Found that this has a dependency on

        @ libQt5Network.so.5@

        Aslo, so i placed libQt5Network.so.5 in the application folder and it worked.

        Can you please tell me why linux Framebuffer has dependency on QT Network library? How a network connection is getting into picture? is it something related to VNC?

        Thanks

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

          Right now, no I can't because it really doesn't make sense.

          Not VNC related, AFAIK, this plugin has not been ported

          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
            Sidii
            wrote on last edited by
            #5

            Dear SGaist, thanks for the reply. I looked into the source code and then finally found that the Makefile for LinuxFb module was having LIBS and in that QT Network shared object was given. I removed that and now it is working fine without QT Network libraries.

            Thanks :)

            Cheers!

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            • J Offline
              J Offline
              JCAndle
              wrote on last edited by
              #6

              SGaist, your help here has solved my issue that you've been looking into - allowing me to move on to the next few issues :)

              1 Reply Last reply
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