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No keyboard input on BeagleBone Black

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beaglebonekeyboardinput
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  • B Offline
    B Offline
    Bremenpl
    wrote on last edited by Bremenpl
    #2

    Update:
    So far I was running my application from the Qt creator. Now I have run the application nativelly in the command line using ./myapp -qws. In this situation, my keyboard input is going behind the application to the command line, instead of qt app... So even though im root, i typed sudo, and then keyboard started working. Thats weird for me. Is there a way to make the Qt app use sudo as well?

    Update2
    When i run with sudo on the device- keyboard works. When i run with sudo through ssh, it doesnt. Why?

    lprzenioslo.zut.edu.pl

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    • B Offline
      B Offline
      Bremenpl
      wrote on last edited by
      #3

      Hello there, Could anyone help in this matter please? I Still havent resolved the problem. Now I have noticed that keyboard also doesnt work when I run the Qt app at startup from rc.local

      lprzenioslo.zut.edu.pl

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

        Hi,

        Which version of Qt are you using ? Do you have the rights to access the input devices ?

        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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        • B Offline
          B Offline
          Bremenpl
          wrote on last edited by Bremenpl
          #5

          Hello,
          My application rights are:
          -rwxrwxrwx 1 root root 353100 Mar 2 2015 OvenViewer

          And the input device rights are:
          crwxrwxrwt 1 root root 13, 65 Mar 1 21:45 event1

          I have set the rights in a file /etc/udev/rules.d/85-pure-data.rules:
          KERNEL=="event1", MODE="777"

          My Qt version is 4.8.6:
          QMake version 2.01a
          Using Qt version 4.8.6 in /opt/qt-arm/lib

          lprzenioslo.zut.edu.pl

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          • B Offline
            B Offline
            Bremenpl
            wrote on last edited by Bremenpl
            #6

            Also there is one thing I have noticed thats suspicious for me. When I run the program remotelly at termination of it I always see a line:
            bash: line 1: 653 Terminated DISPLAY=':0.0' QWS_KEYBOARD='/dev/tty' /home/debian/OvenViewer -qws
            QWS_KEYBOARD is set to /dev/tty, even though I have changed it in the build variables to /dev/input/event1 as well as in .user and .pro.user files. But after some builds it becape /dev/tty again in .user file. Might this be the case? How does he know what variable to set?

            Also, why does the mouse work, but not keyboard...?

            lprzenioslo.zut.edu.pl

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

              Starting the application from Qt Creator ?

              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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              • B Offline
                B Offline
                Bremenpl
                wrote on last edited by
                #8

                Yes, the last post was about when running from qt creator.

                lprzenioslo.zut.edu.pl

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                • B Offline
                  B Offline
                  Bremenpl
                  wrote on last edited by
                  #9

                  Also one more thing. I have just implemented by hand a code that reads from /dev/input/event1 and I have placed it in the main before MainWindow is created and it works, which means that the app has the rights to red the input, just the Qt doesnt interpret it, why?

                  The code here after retrieving 20 events from /dev/input/event1 continues to the Qt gui App: Keyboard test code

                  lprzenioslo.zut.edu.pl

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                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #10

                    Just to be entirely sure, Qt 4 series ?

                    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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                    • B Offline
                      B Offline
                      Bremenpl
                      wrote on last edited by
                      #11

                      Yes, the package i have installee it from was qt 4 everywhere

                      lprzenioslo.zut.edu.pl

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                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #12

                        Did I saw correctly ? You have "QWS_KEYBOARD='/dev/tty'" in either a bash script on your target or set in Qt Creator in the run environment panel

                        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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                        • B Offline
                          B Offline
                          Bremenpl
                          wrote on last edited by
                          #13

                          Yes qt creator seems to set it somehow, even though i have found all occuriences of QWS_KEYBOARD in project files and set it to event1. Thats not that much of a problem, the bigger deal is that it doesnt start from rc.local script.

                          lprzenioslo.zut.edu.pl

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                          • SGaistS Offline
                            SGaistS Offline
                            SGaist
                            Lifetime Qt Champion
                            wrote on last edited by
                            #14

                            Look on the Run part of the Project panel in the Environment Variables

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

                            B 1 Reply Last reply
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                            • SGaistS SGaist

                              Look on the Run part of the Project panel in the Environment Variables

                              B Offline
                              B Offline
                              Bremenpl
                              wrote on last edited by
                              #15

                              @SGaist i started there, the walue was set correctly with event1 and qt creator doesnt care, i think its a bug.

                              lprzenioslo.zut.edu.pl

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                              • SGaistS Offline
                                SGaistS Offline
                                SGaist
                                Lifetime Qt Champion
                                wrote on last edited by
                                #16

                                Strange, which version of Qt Creator are you using ?

                                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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                                • B Offline
                                  B Offline
                                  Bremenpl
                                  wrote on last edited by
                                  #17

                                  Qt creator version 3.2.0

                                  lprzenioslo.zut.edu.pl

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                                  • SGaistS Offline
                                    SGaistS Offline
                                    SGaist
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #18

                                    Did you check with a more recent version ?

                                    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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                                    • B Offline
                                      B Offline
                                      Bremenpl
                                      wrote on last edited by
                                      #19

                                      No, I havent. Is there any known bug here? Also, I didnt think there is a newer qt version for embedded systems.

                                      lprzenioslo.zut.edu.pl

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                                      • SGaistS Offline
                                        SGaistS Offline
                                        SGaist
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #20

                                        Sorry, I meant a more recent version of Qt Creator, as for Qt 4 the latest version is 4.8.7

                                        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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