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Noob needs help with Elo Touchscreen

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  • V Vulpecula

    [edit]

    I've founded that i allready installed tslib via apt-get. I think the git install was conflicting with the already installed tslib. No I removed the tslib via apt-get and install from this git directory. Now ts_calibrate works. I have calibrated the screen. Also ts_test returns values.

    But when I run my program (see below) from QT creator and hit the blue rectangle nothing happens. The program had to close. When i put the rectangle in the left upper corner and run the program and touch the screen the rectangle get hit and the program close. So the touch works only the movement of the mouse cursor doesn't go to the point where the touch is. The mouse arrow stays in the left upper corner. Can you tell me what I'm forgetting?

    My QML code

    import QtQuick 2.3
import QtQuick.Window 2.2

Window {
    visible: true

    Rectangle {
        x:100;y:100;width:100;height:100
        color: "blue"

    MouseArea {
        anchors.fill: parent
        onClicked: {
            Qt.quit();
        }
    }
    }
    Text {
        text: qsTr("Hello World")
        anchors.centerIn: parent
    }
}
    V Offline
    V Offline
    Vulpecula
    wrote on last edited by
    #12

    I have added the following to the run arguments -plugin Tslib and gets the following message in de QTCreator application output windows

    ts_open() failed (No such file or directory)

    But when I do ts_calibrate of ts_test on my raspberry everything works. Can someone help me with this?

    1 Reply Last reply
    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #13

      Did you check the environment variables of the Run part in the Project panel ?

      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
      • V Offline
        V Offline
        Vulpecula
        wrote on last edited by Vulpecula
        #14

        Thank you for your reply. I have it finally working. With the following environment variables. Especially the LD_PRELOAD was important. After adding that variable the touchscreen starting to work. I think its because I used tslib from github . Thanks for you patience.

        Environment variables

        LD_LIBRARY_PATH=/usr/local/lib
LD_PRELOAD=/usr/local/lib/libts-0.0.so.0
QT_DEBUG_PLUGINS=1
QT_PLUGIN_PATH=/usr/lib/plugins
QT_QPA_FONTDIR=/usr/lib/fonts
QT_QPA_GENERIC_PLUGINS=tslib:/dev/input/event0
QT_QPA_PLATFORM=eglfs
QT_QPA_PLATFORM_PLUGIN_PATH=/usr/lib/plugins/platforms
TSLIB_CALIBFILE=/home/pi/pointercal
TSLIB_CONFFILE=/usr/local/etc/ts.conf
TSLIB_CONSOLEDEVICE=none
TSLIB_FBDEVICE=/dev/fb0
TSLIB_PLUGINDIR=/usr/local/lib/ts
TSLIB_TSDEVICE=/dev/input/event0
TSLIB_TSEVENTTYPE=INPUT
        1 Reply Last reply
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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #15

          So you have it working now properly ?

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

          V 1 Reply Last reply
          0
          • SGaistS SGaist

            So you have it working now properly ?

            V Offline
            V Offline
            Vulpecula
            wrote on last edited by Vulpecula
            #16

            @SGaist

            Well, I tought it works completely but there is one problem. When I push on the MouseArea the cursor is going to that position where I push but most of the time there is not a onclicked event triggered. When I push multiple times on the mousearea sometime the onclick event will be triggered, maybe 1 out of 10 á 15 times.

            I have connected the touchscreen to a Windows machine en every push on the screen is triggered. This is why I thing that there is something wrong with my tslib configuration.

            Can you help me with this problem?

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            0
            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #17

              Did you run ts_calibrate ?

              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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              • V Offline
                V Offline
                Vulpecula
                wrote on last edited by Vulpecula
                #18

                Yes, and it works fine. I also got a pointercal file. And ts_test works also. Maybe the debug output is usefull.

                
QML debugging is enabled. Only use this in a safe environment.
QFactoryLoader::QFactoryLoader() checking directory path "/usr/local/qt5pi/plugins" ...
QFactoryLoader::QFactoryLoader() checking directory path "/opt/test2/bin" ...
QFactoryLoader::QFactoryLoader() looking at "/opt/test2/bin/test2"
"Plugin verification data mismatch in '/opt/test2/bin/test2'" 
         not a plugin
QFactoryLoader::QFactoryLoader() checking directory path "/usr/local/qt5pi/plugins/platforms" ...
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/platforms/libqeglfs.so"
Found metadata in lib /usr/local/qt5pi/plugins/platforms/libqeglfs.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "eglfs"
        ]
    },
    "className": "QEglFSIntegrationPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("eglfs")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/platforms/libqlinuxfb.so"
Found metadata in lib /usr/local/qt5pi/plugins/platforms/libqlinuxfb.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "linuxfb"
        ]
    },
    "className": "QLinuxFbIntegrationPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("linuxfb")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/platforms/libqminimal.so"
Found metadata in lib /usr/local/qt5pi/plugins/platforms/libqminimal.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimal"
        ]
    },
    "className": "QMinimalIntegrationPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("minimal")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/platforms/libqminimalegl.so"
Found metadata in lib /usr/local/qt5pi/plugins/platforms/libqminimalegl.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimalegl"
        ]
    },
    "className": "QMinimalEglIntegrationPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("minimalegl")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/platforms/libqoffscreen.so"
Found metadata in lib /usr/local/qt5pi/plugins/platforms/libqoffscreen.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "offscreen"
        ]
    },
    "className": "QOffscreenIntegrationPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("offscreen")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/platforms/libqxcb.so"
Found metadata in lib /usr/local/qt5pi/plugins/platforms/libqxcb.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "xcb"
        ]
    },
    "className": "QXcbIntegrationPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("xcb")
QFactoryLoader::QFactoryLoader() checking directory path "/opt/test2/bin/platforms" ...
loaded library "/usr/local/qt5pi/plugins/platforms/libqeglfs.so"
QFactoryLoader::QFactoryLoader() checking directory path "/usr/local/qt5pi/plugins/egldeviceintegrations" ...
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/egldeviceintegrations/libqeglfs-brcm-integration.so"
Found metadata in lib /usr/local/qt5pi/plugins/egldeviceintegrations/libqeglfs-brcm-integration.so, metadata=
{
    "IID": "org.qt-project.qt.qpa.egl.QEGLDeviceIntegrationFactoryInterface.5.5",
    "MetaData": {
        "Keys": [
            "eglfs_brcm"
        ]
    },
    "className": "QEglFSBrcmIntegrationPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("eglfs_brcm")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/egldeviceintegrations/libqeglfs-kms-integration.so"
Found metadata in lib /usr/local/qt5pi/plugins/egldeviceintegrations/libqeglfs-kms-integration.so, metadata=
{
    "IID": "org.qt-project.qt.qpa.egl.QEGLDeviceIntegrationFactoryInterface.5.5",
    "MetaData": {
        "Keys": [
            "eglfs_kms"
        ]
    },
    "className": "QEglFSKmsIntegrationPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("eglfs_kms")
QFactoryLoader::QFactoryLoader() checking directory path "/opt/test2/bin/egldeviceintegrations" ...
loaded library "/usr/local/qt5pi/plugins/egldeviceintegrations/libqeglfs-brcm-integration.so"
Unable to query physical screen size, defaulting to 100 dpi.
To override, set QT_QPA_EGLFS_PHYSICAL_WIDTH and QT_QPA_EGLFS_PHYSICAL_HEIGHT (in millimeters).
QFactoryLoader::QFactoryLoader() checking directory path "/usr/local/qt5pi/plugins/generic" ...
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/generic/libqevdevkeyboardplugin.so"
Found metadata in lib /usr/local/qt5pi/plugins/generic/libqevdevkeyboardplugin.so, metadata=
{
    "IID": "org.qt-project.Qt.QGenericPluginFactoryInterface",
    "MetaData": {
        "Keys": [
            "EvdevKeyboard"
        ]
    },
    "className": "QEvdevKeyboardPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("evdevkeyboard")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/generic/libqevdevmouseplugin.so"
Found metadata in lib /usr/local/qt5pi/plugins/generic/libqevdevmouseplugin.so, metadata=
{
    "IID": "org.qt-project.Qt.QGenericPluginFactoryInterface",
    "MetaData": {
        "Keys": [
            "EvdevMouse"
        ]
    },
    "className": "QEvdevMousePlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("evdevmouse")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/generic/libqevdevtabletplugin.so"
Found metadata in lib /usr/local/qt5pi/plugins/generic/libqevdevtabletplugin.so, metadata=
{
    "IID": "org.qt-project.Qt.QGenericPluginFactoryInterface",
    "MetaData": {
        "Keys": [
            "EvdevTablet"
        ]
    },
    "className": "QEvdevTabletPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("evdevtablet")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/generic/libqevdevtouchplugin.so"
Found metadata in lib /usr/local/qt5pi/plugins/generic/libqevdevtouchplugin.so, metadata=
{
    "IID": "org.qt-project.Qt.QGenericPluginFactoryInterface",
    "MetaData": {
        "Keys": [
            "EvdevTouch"
        ]
    },
    "className": "QEvdevTouchScreenPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("evdevtouch")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/generic/libqlibinputplugin.so"
Found metadata in lib /usr/local/qt5pi/plugins/generic/libqlibinputplugin.so, metadata=
{
    "IID": "org.qt-project.Qt.QGenericPluginFactoryInterface",
    "MetaData": {
        "Keys": [
            "libinput"
        ]
    },
    "className": "QLibInputPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("libinput")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/generic/libqtslibplugin.so"
Found metadata in lib /usr/local/qt5pi/plugins/generic/libqtslibplugin.so, metadata=
{
    "IID": "org.qt-project.Qt.QGenericPluginFactoryInterface",
    "MetaData": {
        "Keys": [
            "Tslib",
            "TslibRaw"
        ]
    },
    "className": "QTsLibPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("tslib", "tslibraw")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5pi/plugins/generic/libqtuiotouchplugin.so"
Found metadata in lib /usr/local/qt5pi/plugins/generic/libqtuiotouchplugin.so, metadata=
{
    "IID": "org.qt-project.Qt.QGenericPluginFactoryInterface",
    "MetaData": {
        "Keys": [
            "TuioTouch"
        ]
    },
    "className": "QTuioTouchPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("tuiotouch")
QFactoryLoader::QFactoryLoader() checking directory path "/opt/test2/bin/generic" ...
loaded library "/usr/local/qt5pi/plugins/generic/libqtslibplugin.so"
Found metadata in lib /usr/local/qt5pi/qml/QtQuick.2/libqtquick2plugin.so, metadata=
{
    "IID": "org.qt-project.Qt.QQmlExtensionInterface/1.0",
    "MetaData": {
    },
    "className": "QtQuick2Plugin",
    "debug": false,
    "uri": [
        "QtQuick.2"
    ],
    "version": 329218
}


loaded library "/usr/local/qt5pi/qml/QtQuick.2/libqtquick2plugin.so"
Found metadata in lib /usr/local/qt5pi/qml/QtQuick/Window.2/libwindowplugin.so, metadata=
{
    "IID": "org.qt-project.Qt.QQmlExtensionInterface/1.0",
    "MetaData": {
    },
    "className": "QtQuick2WindowPlugin",
    "debug": false,
    "uri": [
        "QtQuick.Window.2"
    ],
    "version": 329218
}


loaded library "/usr/local/qt5pi/qml/QtQuick/Window.2/libwindowplugin.so"
QFactoryLoader::QFactoryLoader() checking directory path "/usr/local/qt5pi/plugins/accessible" ...
QFactoryLoader::QFactoryLoader() checking directory path "/opt/test2/bin/accessible" ...
User requested stop. Shutting down...
Application finished with exit code 1.
                1 Reply Last reply
                0
                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #19

                  What parameter are you passing to your application ?

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

                  V 1 Reply Last reply
                  0
                  • SGaistS SGaist

                    What parameter are you passing to your application ?

                    V Offline
                    V Offline
                    Vulpecula
                    wrote on last edited by Vulpecula
                    #20

                    @SGaist

                    LD_LIBRARY_PATH=/usr/local/lib
QT_DEBUG_PLUGINS=1
QT_PLUGIN_PATH=/usr/lib/qt5pi/plugins
QT_QPA_EGLFS_HIDECURSOR=1
QT_QPA_FB_DISABLE_INPUT=1
QT_QPA_FONTDIR=/usr/lib/fonts
QT_QPA_GENERIC_PLUGINS=tslib:/dev/input/event0
QT_QPA_PLATFORM=eglfs
QT_QPA_PLATFORM_PLUGIN_PATH=/usr/lib/qt5pi/plugins/platforms
TSLIB_CALIBFILE=/usr/local/etc/pointercal
TSLIB_CONFFILE=/usr/local/etc/ts.conf
TSLIB_CONSOLEDEVICE=none
TSLIB_FBDEVICE=/dev/fb0
TSLIB_PLUGINDIR=/usr/local/lib/ts
TSLIB_TSDEVICE=/dev/input/event0
TSLIB_TSEVENTTYPE=INPUT

                    This are all the environment variable. Arguments field is empty.

                    When i insert a USB mouse into the raspberry the mouse works directly and every mouseclick is triggered

                    1 Reply Last reply
                    0
                    • V Offline
                      V Offline
                      Vulpecula
                      wrote on last edited by Vulpecula
                      #21

                      [edit]

                      Adding one more variable did the trick.

                      QT_QPA_EGLFS_DISABLE_INPUT=1

                      Thank you for your help. It now works totally fine. Topic can be set as Solved

                      1 Reply Last reply
                      0
                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #22

                        Great !

                        Thanks for sharing your findings !

                        You can mark it as solved :) Use the "Topic Tool" button and change the type of the thread to a question, then you'll be able to mark it as solved :)

                        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
                        • V Offline
                          V Offline
                          Vulpecula
                          wrote on last edited by
                          #23

                          I just started from scratch with my raspberry pi and ubuntu installation. I first installed my raspberry pi with tslib from kergoth. After that I followed the cross compile tutorial RaspberryPi2EGLFS. When I was done I opened my QT project and tried to run the project, but now I get a segmentation fault error. Could some tell me what's wrong?

                          Application Output in QT Creator

                          Got keys from plugin meta data ("tuiotouch")
QFactoryLoader::QFactoryLoader() checking directory path "/opt/Test/bin/generic" ...
loaded library "/usr/local/qt5pi/plugins/generic/libqtslibplugin.so"
bash: line 1: 13629 Segmentation fault      DISPLAY=':0.0' LD_LIBRARY_PATH='/usr/local/lib' QT_DEBUG_PLUGINS='1' QT_PLUGIN_PATH='/usr/lib/qt5pi/plugins' QT_QPA_EGLFS_DISABLE_INPUT='1' QT_QPA_EGLFS_HIDECURSOR='0' QT_QPA_FB_TSLIB='1' QT_QPA_FONTDIR='/usr/lib/fonts' QT_QPA_GENERIC_PLUGINS='tslib:/dev/input/event0' QT_QPA_PLATFORM='eglfs' QT_QPA_PLATFORM_PLUGIN_PATH='/usr/lib/qt5pi/plugins/platforms' TSLIB_CALIBFILE='/usr/local/etc/pointercal' TSLIB_CONFFILE='/usr/local/etc/ts.conf' TSLIB_CONSOLEDEVICE='none' TSLIB_FBDEVICE='/dev/fb0' TSLIB_PLUGINDIR='/usr/local/lib/ts' TSLIB_TSDEVICE='/dev/input/event0' TSLIB_TSEVENTTYPE='INPUT' WIRINGPI_GPIOMEM='1' /opt/Test/bin/Test
                          1 Reply Last reply
                          0
                          • SGaistS Offline
                            SGaistS Offline
                            SGaist
                            Lifetime Qt Champion
                            wrote on last edited by
                            #24

                            Start it with the debugger then you'll be able to get a stack trace.

                            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
                            • V Offline
                              V Offline
                              Vulpecula
                              wrote on last edited by
                              #25

                              Sorry for reopening this issue. It seems to be that i forgot a crucial part of my notes for reinstalling my setup. After following the steps on this page I've got it working again. Thanks for replying again.

                              1 Reply Last reply
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