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Keyboard Issue using vnc under Qtcreator

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  • SURbyteS Offline
    SURbyteS Offline
    SURbyte
    wrote on last edited by
    #1

    Hi. I am working with my RPi 2 under RASPBIAN JESSIE
    Version:May 2016
    Release date:2016-05-27
    Kernel version:4.4
    Release notes:Link

    I installed tightvncserver on Pi and VNC Viewer on Windows 10.
    Everything runs ok.
    But under Qt each word appears like encrypted or different.
    If I pressed 'b', it shows 's'.
    For instance: this is a sequence from INPUT: abcdefg
    OUTPUT on Qt for instance Mainwindows.cpp: asdfghj

    some words acts like CR

    Can anyone suggest me something?

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

      Hi and welcome to devnet,

      What kind of keyboard do you have on your computer ? Is it QWERTY ?

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

      1 Reply Last reply
      0
      • SURbyteS Offline
        SURbyteS Offline
        SURbyte
        wrote on last edited by SURbyte
        #3

        Yes, it´s QWERTY.

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

          Are both your system using the same keyboard layout ?

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

          SURbyteS 1 Reply Last reply
          0
          • hskoglundH Offline
            hskoglundH Offline
            hskoglund
            wrote on last edited by
            #5

            Hi, on your WIndows 10, if you're using RealVNC's VNC Viewer, you could try TightVNC's VNC client instead.

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            • SGaistS SGaist

              Are both your system using the same keyboard layout ?

              SURbyteS Offline
              SURbyteS Offline
              SURbyte
              wrote on last edited by
              #6

              Yes both are using same layout.

              I found the solution.
              VNCserver is the problem.
              I'm using tightvncserver on RPi and tightvnc viewer or Real VNC Viewer on Win10 .

              I searched for many hours and then found a thread with same problem.
              Someone suggested him to use X11vnc. I installed it and works.

              I had to change X11vnc resolution because by default shows like VGA or zoomed.
              Follow this link Change default X11 display resolution

              Qtcreator has problems under tightvncserver.
              That´s is an issue to fix.

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              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by SGaist
                #7

                Do other applications using Qt suffer the same problem ?

                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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                0
                • D Offline
                  D Offline
                  dennis.restle
                  wrote on last edited by
                  #8

                  Yes, i can confirm that this weird behaviour is also with labelImg with pyQT.
                  Everything works fine with VNC, the shell, Terminal,etc,etc....
                  except QT Keyboard input.

                  I'm Using ThightVNC from a Windows 10 Computer to Connect to my ThightVNC Server With Ubuntu 18.04.1 and xfce 4.12

                  When i use LabelImage i get a message:

                  Qt: XKEYBOARD extension not present on the X server.
                  Invalid locale

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                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #9

                    What locale do you have ?

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

                    1 Reply Last reply
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