pi@raspberrypi:~ $ export QT_QPA_EGLFS_ALWAYS_SET_MODE="1"
pi@raspberrypi:~ $ ./qopenglwidget -platform eglfs
QFactoryLoader::QFactoryLoader() checking directory path "/usr/local/qt5.15/plugins/platforms" ...
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/platforms/libqeglfs.so"
Found metadata in lib /usr/local/qt5.15/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() looking at "/usr/local/qt5.15/plugins/platforms/libqlinuxfb.so"
Found metadata in lib /usr/local/qt5.15/plugins/platforms/libqlinuxfb.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "linuxfb"
        ]
    },
    "archreq": 0,
    "className": "QLinuxFbIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("linuxfb")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/platforms/libqminimal.so"
Found metadata in lib /usr/local/qt5.15/plugins/platforms/libqminimal.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimal"
        ]
    },
    "archreq": 0,
    "className": "QMinimalIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("minimal")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/platforms/libqminimalegl.so"
Found metadata in lib /usr/local/qt5.15/plugins/platforms/libqminimalegl.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimalegl"
        ]
    },
    "archreq": 0,
    "className": "QMinimalEglIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("minimalegl")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/platforms/libqoffscreen.so"
Found metadata in lib /usr/local/qt5.15/plugins/platforms/libqoffscreen.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "offscreen"
        ]
    },
    "archreq": 0,
    "className": "QOffscreenIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("offscreen")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/platforms/libqvnc.so"
Found metadata in lib /usr/local/qt5.15/plugins/platforms/libqvnc.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "vnc"
        ]
    },
    "archreq": 0,
    "className": "QVncIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("vnc")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/platforms/libqwebgl.so"
Found metadata in lib /usr/local/qt5.15/plugins/platforms/libqwebgl.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "webgl"
        ]
    },
    "archreq": 0,
    "className": "QWebGLIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("webgl")
QFactoryLoader::QFactoryLoader() checking directory path "/home/pi/platforms" ...
loaded library "/usr/local/qt5.15/plugins/platforms/libqeglfs.so"
QFactoryLoader::QFactoryLoader() checking directory path "/usr/local/qt5.15/plugins/platformthemes" ...
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/platformthemes/libqxdgdesktopportal.so"
Found metadata in lib /usr/local/qt5.15/plugins/platformthemes/libqxdgdesktopportal.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformThemeFactoryInterface.5.1",
    "MetaData": {
        "Keys": [
            "xdgdesktopportal",
            "flatpak",
            "snap"
        ]
    },
    "archreq": 0,
    "className": "QXdgDesktopPortalThemePlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("xdgdesktopportal", "flatpak", "snap")
QFactoryLoader::QFactoryLoader() checking directory path "/home/pi/platformthemes" ...
QFactoryLoader::QFactoryLoader() checking directory path "/usr/local/qt5.15/plugins/egldeviceintegrations" ...
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/egldeviceintegrations/libqeglfs-emu-integration.so"
Found metadata in lib /usr/local/qt5.15/plugins/egldeviceintegrations/libqeglfs-emu-integration.so, metadata=
{
    "IID": "org.qt-project.qt.qpa.egl.QEglFSDeviceIntegrationFactoryInterface.5.5",
    "MetaData": {
        "Keys": [
            "eglfs_emu"
        ]
    },
    "archreq": 0,
    "className": "QEglFSEmulatorIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("eglfs_emu")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/egldeviceintegrations/libqeglfs-kms-egldevice-integration.so"
Found metadata in lib /usr/local/qt5.15/plugins/egldeviceintegrations/libqeglfs-kms-egldevice-integration.so, metadata=
{
    "IID": "org.qt-project.qt.qpa.egl.QEglFSDeviceIntegrationFactoryInterface.5.5",
    "MetaData": {
        "Keys": [
            "eglfs_kms_egldevice"
        ]
    },
    "archreq": 0,
    "className": "QEglFSKmsEglDeviceIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("eglfs_kms_egldevice")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/egldeviceintegrations/libqeglfs-kms-integration.so"
Found metadata in lib /usr/local/qt5.15/plugins/egldeviceintegrations/libqeglfs-kms-integration.so, metadata=
{
    "IID": "org.qt-project.qt.qpa.egl.QEglFSDeviceIntegrationFactoryInterface.5.5",
    "MetaData": {
        "Keys": [
            "eglfs_kms"
        ]
    },
    "archreq": 0,
    "className": "QEglFSKmsGbmIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("eglfs_kms")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/egldeviceintegrations/libqeglfs-x11-integration.so"
Found metadata in lib /usr/local/qt5.15/plugins/egldeviceintegrations/libqeglfs-x11-integration.so, metadata=
{
    "IID": "org.qt-project.qt.qpa.egl.QEglFSDeviceIntegrationFactoryInterface.5.5",
    "MetaData": {
        "Keys": [
            "eglfs_x11"
        ]
    },
    "archreq": 0,
    "className": "QEglFSX11IntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("eglfs_x11")
QFactoryLoader::QFactoryLoader() checking directory path "/home/pi/egldeviceintegrations" ...
loaded library "/usr/local/qt5.15/plugins/egldeviceintegrations/libqeglfs-kms-integration.so"
QFactoryLoader::QFactoryLoader() checking directory path "/usr/local/qt5.15/plugins/imageformats" ...
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/imageformats/libqgif.so"
Found metadata in lib /usr/local/qt5.15/plugins/imageformats/libqgif.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "gif"
        ],
        "MimeTypes": [
            "image/gif"
        ]
    },
    "archreq": 0,
    "className": "QGifPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("gif")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/imageformats/libqicns.so"
Found metadata in lib /usr/local/qt5.15/plugins/imageformats/libqicns.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "icns"
        ],
        "MimeTypes": [
            "image/x-icns"
        ]
    },
    "archreq": 0,
    "className": "QICNSPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("icns")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/imageformats/libqico.so"
Found metadata in lib /usr/local/qt5.15/plugins/imageformats/libqico.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "ico",
            "cur"
        ],
        "MimeTypes": [
            "image/vnd.microsoft.icon",
            "image/vnd.microsoft.icon"
        ]
    },
    "archreq": 0,
    "className": "QICOPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("ico", "cur")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/imageformats/libqjpeg.so"
Found metadata in lib /usr/local/qt5.15/plugins/imageformats/libqjpeg.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "jpg",
            "jpeg"
        ],
        "MimeTypes": [
            "image/jpeg",
            "image/jpeg"
        ]
    },
    "archreq": 0,
    "className": "QJpegPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("jpg", "jpeg")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/imageformats/libqsvg.so"
Found metadata in lib /usr/local/qt5.15/plugins/imageformats/libqsvg.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "svg",
            "svgz"
        ],
        "MimeTypes": [
            "image/svg+xml",
            "image/svg+xml-compressed"
        ]
    },
    "archreq": 0,
    "className": "QSvgPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("svg", "svgz")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/imageformats/libqtga.so"
Found metadata in lib /usr/local/qt5.15/plugins/imageformats/libqtga.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "tga"
        ],
        "MimeTypes": [
            "image/x-tga"
        ]
    },
    "archreq": 0,
    "className": "QTgaPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("tga")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/imageformats/libqtiff.so"
Found metadata in lib /usr/local/qt5.15/plugins/imageformats/libqtiff.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "tiff",
            "tif"
        ],
        "MimeTypes": [
            "image/tiff",
            "image/tiff"
        ]
    },
    "archreq": 0,
    "className": "QTiffPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("tiff", "tif")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/imageformats/libqwbmp.so"
Found metadata in lib /usr/local/qt5.15/plugins/imageformats/libqwbmp.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "wbmp"
        ],
        "MimeTypes": [
            "image/vnd.wap.wbmp"
        ]
    },
    "archreq": 0,
    "className": "QWbmpPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("wbmp")
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/imageformats/libqwebp.so"
Found metadata in lib /usr/local/qt5.15/plugins/imageformats/libqwebp.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "webp"
        ],
        "MimeTypes": [
            "image/webp"
        ]
    },
    "archreq": 0,
    "className": "QWebpPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("webp")
QFactoryLoader::QFactoryLoader() checking directory path "/home/pi/imageformats" ...
loaded library "/usr/local/qt5.15/plugins/imageformats/libqgif.so"
loaded library "/usr/local/qt5.15/plugins/imageformats/libqicns.so"
loaded library "/usr/local/qt5.15/plugins/imageformats/libqico.so"
loaded library "/usr/local/qt5.15/plugins/imageformats/libqjpeg.so"
loaded library "/usr/local/qt5.15/plugins/imageformats/libqsvg.so"
loaded library "/usr/local/qt5.15/plugins/imageformats/libqtga.so"
loaded library "/usr/local/qt5.15/plugins/imageformats/libqtiff.so"
loaded library "/usr/local/qt5.15/plugins/imageformats/libqwbmp.so"
loaded library "/usr/local/qt5.15/plugins/imageformats/libqwebp.so"
Failed to move cursor on screen HDMI1: -13
Failed to move cursor on screen HDMI1: -13
Could not set cursor on screen HDMI1: -13
QFactoryLoader::QFactoryLoader() checking directory path "/usr/local/qt5.15/plugins/styles" ...
QFactoryLoader::QFactoryLoader() checking directory path "/home/pi/styles" ...
QFactoryLoader::QFactoryLoader() checking directory path "/usr/local/qt5.15/plugins/accessiblebridge" ...
QFactoryLoader::QFactoryLoader() checking directory path "/home/pi/accessiblebridge" ...
QFactoryLoader::QFactoryLoader() checking directory path "/usr/local/qt5.15/plugins/iconengines" ...
QFactoryLoader::QFactoryLoader() looking at "/usr/local/qt5.15/plugins/iconengines/libqsvgicon.so"
Found metadata in lib /usr/local/qt5.15/plugins/iconengines/libqsvgicon.so, metadata=
{
    "IID": "org.qt-project.Qt.QIconEngineFactoryInterface",
    "MetaData": {
        "Keys": [
            "svg",
            "svgz",
            "svg.gz"
        ]
    },
    "archreq": 0,
    "className": "QSvgIconPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("svg", "svgz", "svg.gz")
QFactoryLoader::QFactoryLoader() checking directory path "/home/pi/iconengines" ...
QFactoryLoader::QFactoryLoader() checking directory path "/usr/local/qt5.15/plugins/accessible" ...
QFactoryLoader::QFactoryLoader() checking directory path "/home/pi/accessible" ...
Could not set cursor on screen HDMI1: -13
Could not set cursor on screen HDMI1: -13
Could not set DRM mode for screen HDMI1 (Permission denied)
Could not queue DRM page flip on screen HDMI1 (Permission denied)
Could not queue DRM page flip on screen HDMI1 (Permission denied)
Could not queue DRM page flip on screen HDMI1 (Permission denied)
Could not queue DRM page flip on screen HDMI1 (Permission denied)