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    • UNSOLVED QML preview of a cross compiled binary
      QML and Qt Quick • qml embedded yocto qml preview • • navikh333  

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    • UNSOLVED Yocto build fails with meta-qt6
      Mobile and Embedded • yocto bitbake meta-qt6 • • raphasauer  

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      @jsulm I wasn't aware it was not released yet. Back to building Yocto for Qt 5.15.2 then. Thanks!
    • UNSOLVED Issue with qtvirtualkeyboard while upgrading from Qt 5.9 to 5.12
      Mobile and Embedded • yocto qt5.12.x qtvirtualkeyboa • • Johan Borkhuis  

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    • SOLVED Qt Quick Scene Graph doesn't display anything on embedded system (Yocto).
      Mobile and Embedded • arm yocto linuxfb qsg • • JL SABATIER  

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      Sorry folks, the question was vague and the begining of a development... Apparently to make Qt Quick Scene Graph work on an embedded system displaying GUI on the frame buffer, we need to recompile Qt on Yocto, and provide fake/dummy libraries ligEGL.so and libGLES.so Obviously it will be rendered using software, as there is no hardware graphic support in that case, but it still needs "empty" libGLES.so to do so. ...
    • UNSOLVED qt.qpa.wayland: xkbcommon not available on this build, not performing key mapping
      General and Desktop • yocto imx8 • • rtvideo  

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      That's a run time issue you have not compilation.
    • UNSOLVED Yocto build qt.qpa.xcb: could not connect to display qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
      General and Desktop • yocto • • rtvideo  

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      Hi, Well, if your target sysroot does not provide X11, then the xcb backend won't work. Either add X11 to your target or select a more appropriate backend like EGLFS, LinuxFB, wayland, etc.
    • SOLVED Making my yocto image able to compile my qt project
      Mobile and Embedded • yocto embedded qt imx8 • • kmarconi  

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      @SGaist I don't think so but in the meantime I don't see any package which could do it. My board support OpenGl ES2 so I tried some stuff like adding "PACKAGE CONFIG += "gles2" " to my qtbase bb file but nothing has changed ... Also tried to add PACKAGECONFIG_append_pn-qtbase = "gles2" in my local.conf but no change. After some googling, I found that the error was printed by this code : https://code.qt.io/cgit/qt/qtbase.git/tree/src/plugins/platforms/xcb/qxcbbackingstore.cpp?h=dev (line 371) Edit: Closing this issue, it was a problem of platform (by default it was using x11 which is not the one used by my embedded device) . Thanks a lot for your help again !
    • UNSOLVED Yocto SDK standard headers issue
      Mobile and Embedded • qtcreator yocto include path • • sebastienc  

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      This is the output when I build from command line with qmake/make : root@debian:~# echo $QMAKESPEC root@debian:~# source /opt/qtsdk-Guinault-2020.03/environment-setup-armv7at2hf-neon-linux-gnueabi root@debian:~# echo $QMAKESPEC /opt/qtsdk-Guinault-2020.03/sysroots/armv7at2hf-neon-linux-gnueabi/usr/lib/mkspecs/linux-oe-g++ root@debian:~# mkdir hellowolrd_qt root@debian:~# cd hellowolrd_qt/ root@debian:~/hellowolrd_qt# nano helloworld.cpp root@debian:~/hellowolrd_qt# nano helloworld.pro root@debian:~/hellowolrd_qt# qmake helloworld.pro Info: creating stash file /root/hellowolrd_qt/.qmake.stash root@debian:~/hellowolrd_qt# make arm-linux-gnueabihf-g++ -march=armv7-a -mthumb -mfpu=neon -mfloat-abi=hard --sysroot=/opt/qtsdk-Guinault-2020.03/sysroots/armv7at2hf-neon-linux-gnueabi -c -pipe -isystem/home/guinault/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/arm-linux-gnueabihf/include -O2 -pipe -g -feliminate-unused-debug-types --sysroot=/opt/qtsdk-Guinault-2020.03/sysroots/armv7at2hf-neon-linux-gnueabi -O2 -Wall -W -D_REENTRANT -fPIC -DQT_NO_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I. -I/opt/qtsdk-Guinault-2020.03/sysroots/armv7at2hf-neon-linux-gnueabi/usr/include/QtWidgets -I/opt/qtsdk-Guinault-2020.03/sysroots/armv7at2hf-neon-linux-gnueabi/usr/include/QtGui -I/opt/qtsdk-Guinault-2020.03/sysroots/armv7at2hf-neon-linux-gnueabi/usr/include/QtCore -I. -I/opt/qtsdk-Guinault-2020.03/sysroots/armv7at2hf-neon-linux-gnueabi/usr/lib/mkspecs/linux-oe-g++ -o helloworld.o helloworld.cpp In file included from /opt/qtsdk-Guinault-2020.03/sysroots/armv7at2hf-neon-linux-gnueabi/usr/include/QtGui/qtguiglobal.h:43, from /opt/qtsdk-Guinault-2020.03/sysroots/armv7at2hf-neon-linux-gnueabi/usr/include/QtWidgets/qtwidgetsglobal.h:43, from /opt/qtsdk-Guinault-2020.03/sysroots/armv7at2hf-neon-linux-gnueabi/usr/include/QtWidgets/qapplication.h:43, from /opt/qtsdk-Guinault-2020.03/sysroots/armv7at2hf-neon-linux-gnueabi/usr/include/QtWidgets/QApplication:1, from helloworld.cpp:1: /opt/qtsdk-Guinault-2020.03/sysroots/armv7at2hf-neon-linux-gnueabi/usr/include/QtCore/qglobal.h:45:12: fatal error: type_traits: No such file or directory # include <type_traits> ^~~~~~~~~~~~~ compilation terminated. Makefile:547: recipe for target 'helloworld.o' failed make: *** [helloworld.o] Error 1 root@debian:~/hellowolrd_qt# And this is CXX and CXXFLAGS : root@debian:~/hellowolrd_qt# . /opt/qtsdk-Guinault-2020.03/environment-setup-armv7at2hf-neon-linux-gnueabi root@debian:~/hellowolrd_qt# echo $CXX arm-linux-gnueabihf-g++ -march=armv7-a -mthumb -mfpu=neon -mfloat-abi=hard --sysroot=/opt/qtsdk-Guinault-2020.03/sysroots/armv7at2hf-neon-linux-gnueabi root@debian:~/hellowolrd_qt# echo $CXXFLAGS -isystem/home/guinault/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/arm-linux-gnueabihf/include -O2 -pipe -g -feliminate-unused-debug-types Anyone can help me please ? Thank you Sébastien
    • UNSOLVED Unexpected U-Boot behavior when building Boot2Qt distro with Yocto
      Mobile and Embedded • yocto boot2qt 5.13 u-boot thud • • Isaias  

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    • UNSOLVED Programme QT ne reconnait les drivers MYSQL
      French • qt5.6 sqlite yocto drivers driver plugins • • nikoPol  

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      @nikoPol said in Programme QT ne reconnait les drivers MYSQL: Il n'y a pas d'autre moyen Non, il faut compiler les drivers pour votre cible avec les paramètres adéquats, soit directement à partir de Yocto, soit "à la main", à partir des sources de Qt. Peut-être que ce lien pourra vous être utile: https://www.udoo.org/forum/threads/solved-how-to-use-sql-model-with-qt5-layer.5136/ Désolé, je n'ai que des connaissances de base concernant Yocto... Et ca fait bien 3 ans que je ne l'ai plus mis en oeuvre!
    • UNSOLVED Can't get QtWebEngine to work on Raspberry Pi 3B
      QtWebEngine • qtwebengine raspberry pi 3 yocto • • Yury Lunev  

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    • UNSOLVED Failed to build QtWebEngine on Boot2Qt sumo
      Mobile and Embedded • yocto qwebengine qt5.12.x b2qt • • KazuoAsano  

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      Just wanted to say thanks! I ran into the same issue (building qtwebengine) on Ubuntu 18.04 host and this fixed it. I'm adding it to my personal list of prerequisites for my Boot2Qt Yocto builds....
    • UNSOLVED Hindi and Gujarati font support for Qt5 on i.MX6 (Yocto Linux 4.1.15)
      Mobile and Embedded • qt5 font yocto i.mx6 linguist • • Ajith_P_V  

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      @Cleiton-Bueno Thank you very much for providing me more information on the Yocto language selection.
    • UNSOLVED QtWebEngine: ERR_SSL_PROTOCOL_ERROR on custom Yocto image
      QtWebEngine • qtwebengine yocto ssl failed • • Morix Dev  

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      I've got the same situation on my iMX6 with Yocto Rocko. Any solution for this issue? Is the same situation on new release Sumo or Thud?
    • SOLVED Yocto imx6 Qt5.9 and QtQuick.Extras
      Mobile and Embedded • yocto qtquick.extras • • Retasor  

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      @tomasz3dk Thanks for the help I did get this working.
    • UNSOLVED Unable to read image frames using gstreamer in opencv for yocto linux image
      Mobile and Embedded • linux opencv yocto • • Sumit  

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      Hi, GStreamer in OpenCV ? Shouldn't you rather post this question on either or maybe both of their forum ?
    • UNSOLVED Yocto + Qt5 + LVDS on i.MX6 (FSL Community BSP): rendering and color depth
      Mobile and Embedded • yocto imx6 resolution i.mx6 display • • daheronj  

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    • SOLVED Could not open egl display
      Mobile and Embedded • eglfs yocto egl • • aV_V  

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      @hflw I continue on ur thread that u've created https://forum.qt.io/topic/75316/qt5-8-for-arm-could-not-open-egl-display
    • UNSOLVED Is there anyway to build Qt 5.6 with ptxdist for imx6 ?
      Mobile and Embedded • yocto imx6 qt 5.6 ptxdist • • mostefa  

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    • UNSOLVED Unknown module(s) in QT: qml quick on Beaglebone Black
      Mobile and Embedded • qt5 embedded yocto beaglebone bbb qtdeclarative • • hiyoshi  

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    • SOLVED What is level support to cross compile?
      Mobile and Embedded • qt creator cross compile yocto sdk • • rickY79  

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      @rickY79 Any of those versions should work if you have the tool chain
    • UNSOLVED Segmentation fault on dummy app
      Mobile and Embedded • yocto imx6 • • VincentB  

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      @VincentB said: Sorry but I'm not sure to find where to find this stack window .. (I'm using qtcreator 3.6.0) see this.
    • SOLVED Why Qt version recognize as for desktop? not for embedded linux?
      Tools • desktop embedded creator yocto version • • rickY79  

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      @jsulm Ok, i will makes progress goes on. Thank you very much. Best Regards.
    • UNSOLVED I need Freelancer
      Jobs • c++ linux yocto opengl es2.0 qt 4.8.5 • • MarceloGomez  

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      @MarceloGomez my skype is nostrik7180 . Can we discuss about your project ?
    • UNSOLVED [ADVICE]. WHICH is the BEST choice for video buffer and display method?
      Mobile and Embedded • yocto method dsp video buffer • • esys9999  

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      4.7 ? Then you will have to take a look at the Qt Mobility module. If you are locked to the Qt 4 series, please upgrade to at least 4.8.7. If not locked then consider using Qt 5.6.0 which just got released and is LTS.
    • UNSOLVED sorry, unimplemented: '-mgeneral-regs-only' and floating point code
      Mobile and Embedded • arm yocto compilation compile-error • • Vigneshwaran  

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      Fine, Thanks.
    • UNSOLVED Graphics Glitch Qt 5.3.2 Yocto
      Mobile and Embedded • qml yocto graphics • • econsysqtdev  

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    • Qt5.4.2 in Raspberry PI 2 problem with QtWebEngine
      Mobile and Embedded • qt5.5 yocto qt5.4.2 raspberrypi qtwebegine • • CleitonBueno  

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    • Compile Qt5.5 for XCB with Yocto
      Mobile and Embedded • embedded linux embedded eglfs yocto xcb x11 • • Gerharddc  

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    • Qt video widget drops buffers while playing mp4 videos with big image size like 1280x720, 1080x720
      Mobile and Embedded • qt5.5 qtmultimedia yocto imx6 gstreamer1.0 • • Sriram  

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    • QT Integration Problem.
      Mobile and Embedded • qt5 yocto ubuntu 12.04 ubuntu-sdk • • Jack04  

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    • Qt doesn't see fontconfig related fonts
      Mobile and Embedded • linux yocto x11 fonts fontconfig • • alexein1983  

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    • Is it possible to build Qt 5.4 for Edison?
      Mobile and Embedded • bluetooth yocto ble qt 5.4.0 • • avrik  

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    • QtQuick application no graphical output
      Mobile and Embedded • qml linux quick yocto • • Erakis  

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    • [SOLVED] How to add qt-gfx-transformed driver/plugin to Qt for Embedded 4.8.5 project
      Mobile and Embedded • yocto qt 4.8.5 qt embedded bitbake • • admd91  

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      I finally got to solve this by myself. I only had to add 'libqgfxtransformed.so' to my target's /usr/lib/qtopia/plugins/gfxdrivers folder. I then ran my app using the '-qws -display transformed:rot90' switch and I got my rotation done!