Russian Qt Forum

export LD_LIBRARY_PATH=/home/root/work/testQml
export QT_QPA_PLATFORM_PLUGIN_PATH=/home/root/work/testQml/plugins/platforms
export QT_PLUGIN_PATH=/home/root/work/testQml/plugins

root@imx6qsabresd:~/work/testQml# ./testQml
qt.qpa.plugin: Could not load the Qt platform plugin "eglfs" in "/home/root/work/testQml/plugins/platforms" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs (from /home/root/work/testQml/plugins/platforms), linuxfb (from /home/root/work/testQml/plugins/platforms), minimal (from /home/root/work/testQml/plugins/platforms), minimalegl (from /home/root/work/testQml/plugins/platforms), offscreen (from /home/root/work/testQml/plugins/platforms), vnc (from /home/root/work/testQml/plugins/platforms), webgl (from /home/root/work/testQml/plugins/platforms), xcb (from /home/root/work/testQml/plugins/platforms), eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, webgl, xcb.

Aborted
root@imx6qsabresd:~/work/testQml#

А что показывает на железке ldd libqeglfs.so?

root@imx6qsabresd:~/work/testQml# ldd libqeglfs.so
ldd: ./libqeglfs.so: No such file or directory
root@imx6qsabresd:~/work/testQml# ldd testQml
        linux-vdso.so.1 (0x7eaf8000)
        libQt5Quick.so.5 => /home/root/work/testQml/libQt5Quick.so.5 (0x76ab3000)
        libQt5Gui.so.5 => /home/root/work/testQml/libQt5Gui.so.5 (0x76563000)
        libQt5QmlModels.so.5 => /home/root/work/testQml/libQt5QmlModels.so.5 (0x764ed000)
        libQt5Qml.so.5 => /home/root/work/testQml/libQt5Qml.so.5 (0x76112000)
        libQt5Network.so.5 => /home/root/work/testQml/libQt5Network.so.5 (0x75fcf000)
        libQt5Core.so.5 => /home/root/work/testQml/libQt5Core.so.5 (0x75a4c000)
        libGLESv2.so.2 => /usr/lib/libGLESv2.so.2 (0x75953000)
        libEGL.so.1 => /usr/lib/libEGL.so.1 (0x75934000)
        libpthread.so.0 => /lib/libpthread.so.0 (0x7590a000)
        libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x757c9000)
        libm.so.6 => /lib/libm.so.6 (0x7574b000)
        libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x7571f000)
        libc.so.6 => /lib/libc.so.6 (0x755e5000)
        libpng16.so.16 => /usr/lib/libpng16.so.16 (0x755ac000)
        libz.so.1 => /lib/libz.so.1 (0x7558a000)
        librt.so.1 => /lib/librt.so.1 (0x75573000)
        libdl.so.2 => /lib/libdl.so.2 (0x75560000)
        libicui18n.so.56 => /usr/lib/libicui18n.so.56 (0x75364000)
        libicuuc.so.56 => /usr/lib/libicuuc.so.56 (0x75211000)
        libicudata.so.56 => /usr/lib/libicudata.so.56 (0x73a1e000)
        libgthread-2.0.so.0 => /usr/lib/libgthread-2.0.so.0 (0x73a0d000)
        libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0x7390f000)
        /lib/ld-linux-armhf.so.3 (0x76ed5000)
        libGAL.so => /usr/lib/libGAL.so (0x7380b000)
        libVSC.so => /usr/lib/libVSC.so (0x73748000)
        libX11.so.6 => /usr/lib/libX11.so.6 (0x7362d000)
        libpcre.so.1 => /usr/lib/libpcre.so.1 (0x735df000)
        libXdamage.so.1 => /usr/lib/libXdamage.so.1 (0x735cd000)
        libXfixes.so.3 => /usr/lib/libXfixes.so.3 (0x735b9000)
        libXext.so.6 => /usr/lib/libXext.so.6 (0x7359a000)
        libxcb.so.1 => /usr/lib/libxcb.so.1 (0x73574000)
        libXau.so.6 => /usr/lib/libXau.so.6 (0x73562000)
        libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x7354e000)
root@imx6qsabresd:~/work/testQml#

root@imx6qsabresd:~/work/testQml# ./testQml
QFactoryLoader::QFactoryLoader() checking directory path "/home/root/work/testQml/plugins/platforms" ...
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/plugins/platforms/libqeglfs.so"
Found metadata in lib /home/root/work/testQml/plugins/platforms/libqeglfs.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "eglfs"
        ]
    },
    "archreq": 0,
    "className": "QEglFSIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("eglfs")
QFactoryLoader::QFactoryLoader() checking directory path "/home/root/work/testQml/plugins" ...
QFactoryLoader::QFactoryLoader() checking directory path "/home/root/work/testQml" ...
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Core.la"
QElfParser: '/home/root/work/testQml/libQt5Core.la' is not an ELF object
"'/home/root/work/testQml/libQt5Core.la' is not an ELF object"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Core.prl"
QElfParser: '/home/root/work/testQml/libQt5Core.prl' is not an ELF object
"'/home/root/work/testQml/libQt5Core.prl' is not an ELF object"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Core.so"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Core.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Core.so.5"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Core.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Core.so.5.15"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Core.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Core.so.5.15.2"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Core.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Gui.la"
QElfParser: '/home/root/work/testQml/libQt5Gui.la' is not an ELF object
"'/home/root/work/testQml/libQt5Gui.la' is not an ELF object"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Gui.prl"
QElfParser: '/home/root/work/testQml/libQt5Gui.prl' is not an ELF object
"'/home/root/work/testQml/libQt5Gui.prl' is not an ELF object"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Gui.so"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Gui.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Gui.so.5"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Gui.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Gui.so.5.15"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Gui.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Gui.so.5.15.2"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Gui.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Network.la"
QElfParser: '/home/root/work/testQml/libQt5Network.la' is not an ELF object
"'/home/root/work/testQml/libQt5Network.la' is not an ELF object"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Network.prl"
QElfParser: '/home/root/work/testQml/libQt5Network.prl' is not an ELF object
"'/home/root/work/testQml/libQt5Network.prl' is not an ELF object"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Network.so"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Network.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Network.so.5"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Network.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Network.so.5.15"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Network.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Network.so.5.15.2"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Network.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Qml.la"
QElfParser: '/home/root/work/testQml/libQt5Qml.la' is not an ELF object
"'/home/root/work/testQml/libQt5Qml.la' is not an ELF object"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Qml.prl"
QElfParser: '/home/root/work/testQml/libQt5Qml.prl' is not an ELF object
"'/home/root/work/testQml/libQt5Qml.prl' is not an ELF object"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Qml.so"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Qml.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Qml.so.5"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Qml.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Qml.so.5.15"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Qml.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Qml.so.5.15.2"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Qml.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5QmlModels.la"
QElfParser: '/home/root/work/testQml/libQt5QmlModels.la' is not an ELF object
"'/home/root/work/testQml/libQt5QmlModels.la' is not an ELF object"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5QmlModels.prl"
QElfParser: '/home/root/work/testQml/libQt5QmlModels.prl' is not an ELF object
"'/home/root/work/testQml/libQt5QmlModels.prl' is not an ELF object"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5QmlModels.so"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5QmlModels.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5QmlModels.so.5"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5QmlModels.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5QmlModels.so.5.15"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5QmlModels.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5QmlModels.so.5.15.2"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5QmlModels.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Quick.la"
QElfParser: '/home/root/work/testQml/libQt5Quick.la' is not an ELF object
"'/home/root/work/testQml/libQt5Quick.la' is not an ELF object"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Quick.prl"
QElfParser: '/home/root/work/testQml/libQt5Quick.prl' is not an ELF object
"'/home/root/work/testQml/libQt5Quick.prl' is not an ELF object"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Quick.so"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Quick.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Quick.so.5"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Quick.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Quick.so.5.15"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Quick.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/libQt5Quick.so.5.15.2"
"Failed to extract plugin meta data from '/home/root/work/testQml/libQt5Quick.so.5.15.2'"
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/testQml"
"Failed to extract plugin meta data from '/home/root/work/testQml/testQml'"
         not a plugin
QFactoryLoader::QFactoryLoader() checking directory path "/home/root/work/testQml/plugins/platforms/platforms" ...
QFactoryLoader::QFactoryLoader() checking directory path "/home/root/work/testQml/plugins/platforms" ...
QFactoryLoader::QFactoryLoader() looking at "/home/root/work/testQml/plugins/platforms/libqeglfs.so"
Got keys from plugin meta data ("eglfs")
QFactoryLoader::QFactoryLoader() checking directory path "/home/root/work/testQml/platforms" ...
Cannot load library /home/root/work/testQml/plugins/platforms/libqeglfs.so: (libQt5EglFSDeviceIntegration.so.5: cannot open shared object file: No such file or directory)
QLibraryPrivate::loadPlugin failed on "/home/root/work/testQml/plugins/platforms/libqeglfs.so" : "Cannot load library /home/root/work/testQml/plugins/platforms/libqeglfs.so: (libQt5EglFSDeviceIntegration.so.5: cannot open shared object file: No such file or directory)"
qt.qpa.plugin: Could not load the Qt platform plugin "eglfs" in "/home/root/work/testQml/plugins/platforms" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs (from /home/root/work/testQml/plugins/platforms), eglfs.

Aborted

Могу дать совет - собирать BSP через Yocto. Иначе - все тлен. ))

QFactoryLoader::QFactoryLoader() checking directory path "/home/root/work/testQml/egldeviceintegrations" ...
loaded library "/home/root/work/testQml/plugins/egldeviceintegrations/libqeglfs-emu-integration.so"
EGL library doesn't support Emulator extensions
./start: line 6:  2405 Aborted                 ./testQml

./configure -confirm-license -v -release \
-prefix ~/tools/imx6/qt5_15_J \
-nomake examples -opensource \
-no-pch -opengl es2 -egl -eglfs \
-device imx6-g++ -no-harfbuzz -no-gstreamer \
-device-option CROSS_COMPILE=~/toolchainChine/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi- \
       -sysroot ~/toolchainChine/sysroots/cortexa9hf-neon-poky-linux-gnueabi

Qt Gui:
...
  EGL .................................... yes
  OpenVG ................................. no
  OpenGL:
    Desktop OpenGL ....................... no
    OpenGL ES 2.0 ........................ yes
    OpenGL ES 3.0 ........................ yes
    OpenGL ES 3.1 ........................ no
    OpenGL ES 3.2 ........................ no
  Vulkan ................................. no
  Session Management ..................... yes
QPA backends:
  DirectFB ............................... no
  EGLFS .................................. yes
  EGLFS details:
    EGLFS OpenWFD ........................ no
    EGLFS i.Mx6 .......................... no
    EGLFS i.Mx6 Wayland .................. no
    EGLFS RCAR ........................... no
    EGLFS EGLDevice ...................... no
    EGLFS GBM ............................ no
    EGLFS VSP2 ........................... no
    EGLFS Mali ........................... no
    EGLFS Raspberry Pi ................... no
    EGLFS X11 ............................ no
  LinuxFB ................................ yes
  VNC .................................... yes
  XCB:
    Using system-provided xcb-xinput ..... no
    Native painting (experimental) ....... no
    GL integrations:
      GLX Plugin ......................... no
      EGL-X11 Plugin ..................... no