Qt quick application not visible on Raspberry Pi 1920x515

[MHermann]

Hello,
I have host with Ubuntu 24.04.
I have compiled Qt6.10.1 for the host and then I have cross-compiled Qt6.10.1 for the target system Raspberry Pi. I am using Raspberry Pi 4B with Raspbian Trixie Lite 64-Bit.
For testing I created a small qt quick test application on my host and built it for Raspi. Now when I am trying to run the test application on the Raspi, I get debug output, but the application is not shown.
I am not sure if the problem is the qt/application itself or the Raspi with the exotic display.
Additional info: I am using a HDMI display with 1920x515.

I am able to show an image on the raspi, with:

sudo fbi -d /dev/fb0 -T 1 /home/pi/Background.jpg

I have tried a lot of different combinations, but now I have no more ideas.
I hope someone can help me.

Content if /boot/firmware/config.txt: (At the moment I use 640x480. But it is only for testing...)

dtparam=audio=on
camera_auto_detect=1
display_auto_detect=1
auto_initramfs=1
dtoverlay=vc4-fkms-v3d
max_framebuffers=2
#disable_fw_kms_setup=1
arm_64bit=1
disable_overscan=1
arm_boost=1
otg_mode=1
dtoverlay=dwc2,dr_mode=host
hdmi_force_hotplug=1
hdmi_ignore_edid=0xa5000080
hdmi_group=2
hdmi_mode=87
hdmi_cvt=640 480 60 1 0 0 0

Content of app-start-script:

FONT_DIR="$HOME/fonts"
export QT_QPA_EGLFS_FONTDIR="$FONT_DIR"
export LD_LIBRARY_PATH=/usr/local/qt6_10_1/lib
export QML2_IMPORT_PATH=/usr/local/qt6_10_1/qml
export QT_PLUGIN_PATH=/usr/local/qt6_10_1/plugins

export QT_DEBUG_PLUGINS=1
export QT_LOGGING_RULES="qt.qpa.*=true"

export QT_QPA_PLATFORM=eglfs #linuxfb #eglfs
export QT_QUICK_BACKEND=opengl
export QT_QPA_EGLFS_KMS_DEVICE=/dev/dri/card0

export QT_QPA_EGLFS_KMS_ATOMIC=1
export QT_QPA_FB=/dev/fb0

#export QT_QPA_EGLFS_DEBUG=1

./appTest

Debug-output after starting the app-start-skript:

qt.qpa.plugin: init_platform called with pluginNamesWithArguments "eglfs" platformPluginPath "" platformThemeName ""
qt.core.plugin.factoryloader: checking directory path "/usr/local/qt6_10_1/plugins/platforms" ...
qt.core.plugin.factoryloader: looking at "libqvnc.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/platforms/libqvnc.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "vnc"
        ]
    },
    "archlevel": 0,
    "className": "QVncIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("vnc")
qt.core.plugin.factoryloader: looking at "libqeglfs.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/platforms/libqeglfs.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "eglfs"
        ]
    },
    "archlevel": 0,
    "className": "QEglFSIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("eglfs")
qt.core.plugin.factoryloader: looking at "libqminimal.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/platforms/libqminimal.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimal"
        ]
    },
    "archlevel": 0,
    "className": "QMinimalIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("minimal")
qt.core.plugin.factoryloader: looking at "libqlinuxfb.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/platforms/libqlinuxfb.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "linuxfb"
        ]
    },
    "archlevel": 0,
    "className": "QLinuxFbIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("linuxfb")
qt.core.plugin.factoryloader: looking at "libqoffscreen.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/platforms/libqoffscreen.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "offscreen"
        ]
    },
    "archlevel": 0,
    "className": "QOffscreenIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("offscreen")
qt.core.plugin.factoryloader: looking at "libqminimalegl.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/platforms/libqminimalegl.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimalegl"
        ]
    },
    "archlevel": 0,
    "className": "QMinimalEglIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("minimalegl")
qt.core.plugin.factoryloader: checking directory path "/home/pi/platforms" ...
qt.qpa.plugin: Attempting to load Qt platform plugin "eglfs" with arguments QList()
qt.core.library: "/usr/local/qt6_10_1/plugins/platforms/libqeglfs.so" loaded library
qt.qpa.plugin: Successfully loaded Qt platform plugin "eglfs"
qt.qpa.theme: Adding platform integration's theme names to list of theme names: QList()
qt.qpa.theme: Failed to create platform theme; using "null" platform theme
qt.core.plugin.factoryloader: checking directory path "/usr/local/qt6_10_1/plugins/egldeviceintegrations" ...
qt.core.plugin.factoryloader: looking at "libqeglfs-kms-integration.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/egldeviceintegrations/libqeglfs-kms-integration.so, metadata=
{
    "IID": "org.qt-project.qt.qpa.egl.QEglFSDeviceIntegrationFactoryInterface.5.5",
    "MetaData": {
        "Keys": [
            "eglfs_kms"
        ]
    },
    "archlevel": 0,
    "className": "QEglFSKmsGbmIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("eglfs_kms")
qt.core.plugin.factoryloader: looking at "libqeglfs-emu-integration.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/egldeviceintegrations/libqeglfs-emu-integration.so, metadata=
{
    "IID": "org.qt-project.qt.qpa.egl.QEglFSDeviceIntegrationFactoryInterface.5.5",
    "MetaData": {
        "Keys": [
            "eglfs_emu"
        ]
    },
    "archlevel": 0,
    "className": "QEglFSEmulatorIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("eglfs_emu")
qt.core.plugin.factoryloader: looking at "libqeglfs-kms-egldevice-integration.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/egldeviceintegrations/libqeglfs-kms-egldevice-integration.so, metadata=
{
    "IID": "org.qt-project.qt.qpa.egl.QEglFSDeviceIntegrationFactoryInterface.5.5",
    "MetaData": {
        "Keys": [
            "eglfs_kms_egldevice"
        ]
    },
    "archlevel": 0,
    "className": "QEglFSKmsEglDeviceIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("eglfs_kms_egldevice")
qt.core.plugin.factoryloader: checking directory path "/home/pi/egldeviceintegrations" ...
qt.qpa.egldeviceintegration: EGL device integration plugin keys: QList("eglfs_kms", "eglfs_emu", "eglfs_kms_egldevice")
qt.qpa.egldeviceintegration: EGL device integration plugin keys (sorted): QList("eglfs_kms", "eglfs_emu", "eglfs_kms_egldevice")
qt.qpa.egldeviceintegration: Trying to load device EGL integration "eglfs_kms"
qt.core.library: "/usr/local/qt6_10_1/plugins/egldeviceintegrations/libqeglfs-kms-integration.so" loaded library
qt.qpa.eglfs.kms: New DRM/KMS via GBM integration created
qt.qpa.egldeviceintegration: Using EGL device integration "eglfs_kms"
qt.qpa.eglfs.kms: platformInit: Load Screen Config
qt.qpa.eglfs.kms: platformInit: Opening DRM device
qt.qpa.input: udev device discovery for type QFlags<QDeviceDiscovery::QDeviceType>(Device_DRM|Device_VideoMask)
qt.qpa.input: Found matching devices QList("/dev/dri/card1", "/dev/dri/card0")
qt.qpa.eglfs.kms: Found the following video devices: QList("/dev/dri/card1", "/dev/dri/card0")
qt.qpa.eglfs.kms: Using "/dev/dri/card1"
qt.qpa.eglfs.kms: Using backend-provided DRM device /dev/dri/card1
qt.qpa.eglfs.kms: Creating GBM device for file descriptor 5 obtained from "/dev/dri/card1"
qt.qpa.eglfs.kms: Using dedicated drm event reading thread
qt.qpa.eglfs.kms: Initializing event reader for device 0x5571f9e4d0 fd 5
qt.qpa.eglfs.kms: Querying EGLDisplay
qt.qpa.eglfs.kms: Event reader thread: entering event loop
qt.qpa.eglfs.kms: Atomic reported as supported
qt.qpa.eglfs.kms: Atomic enabled
qt.qpa.eglfs.kms: Found 8 planes
qt.qpa.eglfs.kms: plane 0: id = 32 countFormats = 15 possibleCrtcs = 0x1 supported formats = XR24 AR24 XB24 AB24 RX24 BX24 RG16 RG24 BG24 YU16 YU12 YV12 NV12 NV21 P030 
qt.qpa.eglfs.kms:   property 0: id = 8 name = 'type'
qt.qpa.eglfs.kms:   type is ENUM, value is 1, possible values are:
qt.qpa.eglfs.kms:     enum 0: Overlay - 0
qt.qpa.eglfs.kms:     enum 1: Primary - 1
qt.qpa.eglfs.kms:     enum 2: Cursor - 2
qt.qpa.eglfs.kms:   property 1: id = 17 name = 'FB_ID'
qt.qpa.eglfs.kms:   type is OBJECT
qt.qpa.eglfs.kms:   property 2: id = 18 name = 'IN_FENCE_FD'
qt.qpa.eglfs.kms:   type is SIGNED_RANGE, value is -1, possible values are:
qt.qpa.eglfs.kms:     -1
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 3: id = 20 name = 'CRTC_ID'
qt.qpa.eglfs.kms:   type is OBJECT
qt.qpa.eglfs.kms:   property 4: id = 13 name = 'CRTC_X'
qt.qpa.eglfs.kms:   type is SIGNED_RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     -2147483648
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 5: id = 14 name = 'CRTC_Y'
qt.qpa.eglfs.kms:   type is SIGNED_RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     -2147483648
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 6: id = 15 name = 'CRTC_W'
qt.qpa.eglfs.kms:   type is RANGE, value is 640, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 7: id = 16 name = 'CRTC_H'
qt.qpa.eglfs.kms:   type is RANGE, value is 480, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 8: id = 9 name = 'SRC_X'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     4294967295
qt.qpa.eglfs.kms:   property 9: id = 10 name = 'SRC_Y'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     4294967295
qt.qpa.eglfs.kms:   property 10: id = 11 name = 'SRC_W'
qt.qpa.eglfs.kms:   type is RANGE, value is 41943040, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     4294967295
qt.qpa.eglfs.kms:   property 11: id = 12 name = 'SRC_H'
qt.qpa.eglfs.kms:   type is RANGE, value is 31457280, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     4294967295
qt.qpa.eglfs.kms:   property 12: id = 30 name = 'IN_FORMATS'
qt.qpa.eglfs.kms:   type is BLOB
qt.qpa.eglfs.kms:   property 13: id = 34 name = 'alpha'
qt.qpa.eglfs.kms:   type is RANGE, value is 65535, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     65535
qt.qpa.eglfs.kms:   property 14: id = 35 name = 'rotation'
qt.qpa.eglfs.kms:   type is BITMASK, value is 1, possible bits are:
qt.qpa.eglfs.kms:     bitmask 0: rotate-0 - 1
qt.qpa.eglfs.kms:     bitmask 1: rotate-180 - 4
qt.qpa.eglfs.kms:     bitmask 2: reflect-x - 16
qt.qpa.eglfs.kms:     bitmask 3: reflect-y - 32
qt.qpa.eglfs.kms:   property 15: id = 36 name = 'COLOR_ENCODING'
qt.qpa.eglfs.kms:   type is ENUM, value is 1, possible values are:
qt.qpa.eglfs.kms:     enum 0: ITU-R BT.601 YCbCr - 0
qt.qpa.eglfs.kms:     enum 1: ITU-R BT.709 YCbCr - 1
qt.qpa.eglfs.kms:     enum 2: ITU-R BT.2020 YCbCr - 2
qt.qpa.eglfs.kms:   property 16: id = 37 name = 'COLOR_RANGE'
qt.qpa.eglfs.kms:   type is ENUM, value is 0, possible values are:
qt.qpa.eglfs.kms:     enum 0: YCbCr limited range - 0
qt.qpa.eglfs.kms:     enum 1: YCbCr full range - 1
qt.qpa.eglfs.kms:   property 17: id = 38 name = 'zpos'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     127
qt.qpa.eglfs.kms: plane 1: id = 39 countFormats = 15 possibleCrtcs = 0x1 supported formats = XR24 AR24 XB24 AB24 RX24 BX24 RG16 RG24 BG24 YU16 YU12 YV12 NV12 NV21 P030 
qt.qpa.eglfs.kms:   property 0: id = 8 name = 'type'
qt.qpa.eglfs.kms:   type is ENUM, value is 0, possible values are:
qt.qpa.eglfs.kms:     enum 0: Overlay - 0
qt.qpa.eglfs.kms:     enum 1: Primary - 1
qt.qpa.eglfs.kms:     enum 2: Cursor - 2
qt.qpa.eglfs.kms:   property 1: id = 17 name = 'FB_ID'
qt.qpa.eglfs.kms:   type is OBJECT
qt.qpa.eglfs.kms:   property 2: id = 18 name = 'IN_FENCE_FD'
qt.qpa.eglfs.kms:   type is SIGNED_RANGE, value is -1, possible values are:
qt.qpa.eglfs.kms:     -1
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 3: id = 20 name = 'CRTC_ID'
qt.qpa.eglfs.kms:   type is OBJECT
qt.qpa.eglfs.kms:   property 4: id = 13 name = 'CRTC_X'
qt.qpa.eglfs.kms:   type is SIGNED_RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     -2147483648
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 5: id = 14 name = 'CRTC_Y'
qt.qpa.eglfs.kms:   type is SIGNED_RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     -2147483648
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 6: id = 15 name = 'CRTC_W'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 7: id = 16 name = 'CRTC_H'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 8: id = 9 name = 'SRC_X'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     4294967295
qt.qpa.eglfs.kms:   property 9: id = 10 name = 'SRC_Y'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     4294967295
qt.qpa.eglfs.kms:   property 10: id = 11 name = 'SRC_W'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     4294967295
qt.qpa.eglfs.kms:   property 11: id = 12 name = 'SRC_H'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     4294967295
qt.qpa.eglfs.kms:   property 12: id = 30 name = 'IN_FORMATS'
qt.qpa.eglfs.kms:   type is BLOB
qt.qpa.eglfs.kms:   property 13: id = 41 name = 'alpha'
qt.qpa.eglfs.kms:   type is RANGE, value is 65535, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     65535
qt.qpa.eglfs.kms:   property 14: id = 42 name = 'rotation'
qt.qpa.eglfs.kms:   type is BITMASK, value is 1, possible bits are:
qt.qpa.eglfs.kms:     bitmask 0: rotate-0 - 1
qt.qpa.eglfs.kms:     bitmask 1: rotate-180 - 4
qt.qpa.eglfs.kms:     bitmask 2: reflect-x - 16
qt.qpa.eglfs.kms:     bitmask 3: reflect-y - 32
qt.qpa.eglfs.kms:   property 15: id = 43 name = 'COLOR_ENCODING'
qt.qpa.eglfs.kms:   type is ENUM, value is 1, possible values are:
qt.qpa.eglfs.kms:     enum 0: ITU-R BT.601 YCbCr - 0
qt.qpa.eglfs.kms:     enum 1: ITU-R BT.709 YCbCr - 1
qt.qpa.eglfs.kms:     enum 2: ITU-R BT.2020 YCbCr - 2
qt.qpa.eglfs.kms:   property 16: id = 44 name = 'COLOR_RANGE'
qt.qpa.eglfs.kms:   type is ENUM, value is 0, possible values are:
qt.qpa.eglfs.kms:     enum 0: YCbCr limited range - 0
qt.qpa.eglfs.kms:     enum 1: YCbCr full range - 1
qt.qpa.eglfs.kms:   property 17: id = 45 name = 'zpos'
qt.qpa.eglfs.kms:   type is RANGE, value is 1, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     127
...
qt.qpa.eglfs.kms: plane 7: id = 81 countFormats = 15 possibleCrtcs = 0x1 supported formats = XR24 AR24 XB24 AB24 RX24 BX24 RG16 RG24 BG24 YU16 YU12 YV12 NV12 NV21 P030 
qt.qpa.eglfs.kms:   property 0: id = 8 name = 'type'
qt.qpa.eglfs.kms:   type is ENUM, value is 2, possible values are:
qt.qpa.eglfs.kms:     enum 0: Overlay - 0
qt.qpa.eglfs.kms:     enum 1: Primary - 1
qt.qpa.eglfs.kms:     enum 2: Cursor - 2
qt.qpa.eglfs.kms:   property 1: id = 17 name = 'FB_ID'
qt.qpa.eglfs.kms:   type is OBJECT
qt.qpa.eglfs.kms:   property 2: id = 18 name = 'IN_FENCE_FD'
qt.qpa.eglfs.kms:   type is SIGNED_RANGE, value is -1, possible values are:
qt.qpa.eglfs.kms:     -1
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 3: id = 20 name = 'CRTC_ID'
qt.qpa.eglfs.kms:   type is OBJECT
qt.qpa.eglfs.kms:   property 4: id = 13 name = 'CRTC_X'
qt.qpa.eglfs.kms:   type is SIGNED_RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     -2147483648
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 5: id = 14 name = 'CRTC_Y'
qt.qpa.eglfs.kms:   type is SIGNED_RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     -2147483648
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 6: id = 15 name = 'CRTC_W'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 7: id = 16 name = 'CRTC_H'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     2147483647
qt.qpa.eglfs.kms:   property 8: id = 9 name = 'SRC_X'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     4294967295
qt.qpa.eglfs.kms:   property 9: id = 10 name = 'SRC_Y'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     4294967295
qt.qpa.eglfs.kms:   property 10: id = 11 name = 'SRC_W'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     4294967295
qt.qpa.eglfs.kms:   property 11: id = 12 name = 'SRC_H'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     4294967295
qt.qpa.eglfs.kms:   property 12: id = 30 name = 'IN_FORMATS'
qt.qpa.eglfs.kms:   type is BLOB
qt.qpa.eglfs.kms:   property 13: id = 83 name = 'alpha'
qt.qpa.eglfs.kms:   type is RANGE, value is 65535, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     65535
qt.qpa.eglfs.kms:   property 14: id = 84 name = 'rotation'
qt.qpa.eglfs.kms:   type is BITMASK, value is 1, possible bits are:
qt.qpa.eglfs.kms:     bitmask 0: rotate-0 - 1
qt.qpa.eglfs.kms:     bitmask 1: rotate-180 - 4
qt.qpa.eglfs.kms:     bitmask 2: reflect-x - 16
qt.qpa.eglfs.kms:     bitmask 3: reflect-y - 32
qt.qpa.eglfs.kms:   property 15: id = 85 name = 'COLOR_ENCODING'
qt.qpa.eglfs.kms:   type is ENUM, value is 1, possible values are:
qt.qpa.eglfs.kms:     enum 0: ITU-R BT.601 YCbCr - 0
qt.qpa.eglfs.kms:     enum 1: ITU-R BT.709 YCbCr - 1
qt.qpa.eglfs.kms:     enum 2: ITU-R BT.2020 YCbCr - 2
qt.qpa.eglfs.kms:   property 16: id = 86 name = 'COLOR_RANGE'
qt.qpa.eglfs.kms:   type is ENUM, value is 0, possible values are:
qt.qpa.eglfs.kms:     enum 0: YCbCr limited range - 0
qt.qpa.eglfs.kms:     enum 1: YCbCr full range - 1
qt.qpa.eglfs.kms:   property 17: id = 87 name = 'zpos'
qt.qpa.eglfs.kms:   type is RANGE, value is 2, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     127
qt.qpa.eglfs.kms: "HDMI1" mode count: 1 crtc index: 0 crtc id: 88
qt.qpa.eglfs.kms: mode 0 640 x 480 @ 59 hz
qt.qpa.eglfs.kms: Selected mode 0 : 640 x 480 @ 59 hz for output "HDMI1"
qt.qpa.eglfs.kms: Physical size is QSizeF(0, 0) mm for output "HDMI1"
qt.qpa.eglfs.kms: Format is 34325258 requested_by_user = false for output "HDMI1"
qt.qpa.eglfs.kms: Output "HDMI1" framebuffer size is  QSize(640, 480)
qt.qpa.eglfs.kms:   property 0: id = 1 name = 'EDID'
qt.qpa.eglfs.kms:   type is BLOB
qt.qpa.eglfs.kms:   property 1: id = 2 name = 'DPMS'
qt.qpa.eglfs.kms:   type is ENUM, value is 0, possible values are:
qt.qpa.eglfs.kms:     enum 0: On - 0
qt.qpa.eglfs.kms:     enum 1: Standby - 1
qt.qpa.eglfs.kms:     enum 2: Suspend - 2
qt.qpa.eglfs.kms:     enum 3: Off - 3
qt.qpa.eglfs.kms:   property 2: id = 5 name = 'link-status'
qt.qpa.eglfs.kms:   type is ENUM, value is 0, possible values are:
qt.qpa.eglfs.kms:     enum 0: Good - 0
qt.qpa.eglfs.kms:     enum 1: Bad - 1
qt.qpa.eglfs.kms:   property 3: id = 6 name = 'non-desktop'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     1
qt.qpa.eglfs.kms:   property 4: id = 4 name = 'TILE'
qt.qpa.eglfs.kms:   type is BLOB
qt.qpa.eglfs.kms:   property 5: id = 20 name = 'CRTC_ID'
qt.qpa.eglfs.kms:   type is OBJECT
qt.qpa.eglfs.kms:   property 6: id = 91 name = 'left margin'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     100
qt.qpa.eglfs.kms:   property 7: id = 92 name = 'right margin'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     100
qt.qpa.eglfs.kms:   property 8: id = 93 name = 'top margin'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     100
qt.qpa.eglfs.kms:   property 9: id = 94 name = 'bottom margin'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     100
qt.qpa.eglfs.kms:   property 10: id = 95 name = 'Broadcast RGB'
qt.qpa.eglfs.kms:   type is ENUM, value is 0, possible values are:
qt.qpa.eglfs.kms:     enum 0: Automatic - 0
qt.qpa.eglfs.kms:     enum 1: Full - 1
qt.qpa.eglfs.kms:     enum 2: Limited 16:235 - 2
qt.qpa.eglfs.kms:   property 0: id = 22 name = 'ACTIVE'
qt.qpa.eglfs.kms:   type is RANGE, value is 1, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     1
qt.qpa.eglfs.kms:   property 1: id = 23 name = 'MODE_ID'
qt.qpa.eglfs.kms:   type is BLOB
qt.qpa.eglfs.kms:   property 2: id = 19 name = 'OUT_FENCE_PTR'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     18446744073709551615
qt.qpa.eglfs.kms:   property 3: id = 24 name = 'VRR_ENABLED'
qt.qpa.eglfs.kms:   type is RANGE, value is 0, possible values are:
qt.qpa.eglfs.kms:     0
qt.qpa.eglfs.kms:     1
qt.qpa.eglfs.kms: Output HDMI1 can use 8 planes: 32 39 46 53 60 67 74 81 
qt.qpa.eglfs.kms: Chose plane 32 for output HDMI1 (crtc id 88) (may not be applicable)
qt.qpa.eglfs.kms: No EDID data for output "HDMI1"
qt.qpa.eglfs.kms: Creating new global GBM mouse cursor
qt.qpa.eglfs.kms: Initializing cursor atlas from ":/cursor.json"
qt.core.plugin.factoryloader: checking directory path "/usr/local/qt6_10_1/plugins/imageformats" ...
qt.core.plugin.factoryloader: looking at "libqsvg.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqsvg.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "svg",
            "svgz"
        ],
        "MimeTypes": [
            "image/svg+xml",
            "image/svg+xml-compressed"
        ]
    },
    "archlevel": 0,
    "className": "QSvgPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("svg", "svgz")
qt.core.plugin.factoryloader: looking at "libqtga.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqtga.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "tga"
        ],
        "MimeTypes": [
            "image/x-tga"
        ]
    },
    "archlevel": 0,
    "className": "QTgaPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("tga")
qt.core.plugin.factoryloader: looking at "libqwebp.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqwebp.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "webp"
        ],
        "MimeTypes": [
            "image/webp"
        ]
    },
    "archlevel": 0,
    "className": "QWebpPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("webp")
qt.core.plugin.factoryloader: looking at "libqicns.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqicns.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "icns"
        ],
        "MimeTypes": [
            "image/x-icns"
        ]
    },
    "archlevel": 0,
    "className": "QICNSPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("icns")
qt.core.plugin.factoryloader: looking at "libqtiff.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqtiff.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "tiff",
            "tif"
        ],
        "MimeTypes": [
            "image/tiff",
            "image/tiff"
        ]
    },
    "archlevel": 0,
    "className": "QTiffPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("tiff", "tif")
qt.core.plugin.factoryloader: looking at "libqico.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqico.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "ico",
            "cur"
        ],
        "MimeTypes": [
            "image/vnd.microsoft.icon",
            "image/vnd.microsoft.icon"
        ]
    },
    "archlevel": 0,
    "className": "QICOPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("ico", "cur")
qt.core.plugin.factoryloader: looking at "libqgif.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqgif.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "gif"
        ],
        "MimeTypes": [
            "image/gif"
        ]
    },
    "archlevel": 0,
    "className": "QGifPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("gif")
qt.core.plugin.factoryloader: looking at "libqwbmp.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqwbmp.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "wbmp"
        ],
        "MimeTypes": [
            "image/vnd.wap.wbmp"
        ]
    },
    "archlevel": 0,
    "className": "QWbmpPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("wbmp")
qt.core.plugin.factoryloader: looking at "libqjpeg.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqjpeg.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "jpg",
            "jpeg",
            "jfif"
        ],
        "MimeTypes": [
            "image/jpeg",
            "image/jpeg",
            "image/jpeg"
        ]
    },
    "archlevel": 0,
    "className": "QJpegPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("jpg", "jpeg", "jfif")
qt.core.plugin.factoryloader: checking directory path "/home/pi/imageformats" ...
qt.qpa.eglfs.kms: Sorted screen list: QList(OrderedScreen(QPlatformScreen=0x5572017fc0 ("HDMI1") : 2147483647 / QPoint(0,0) / primary: false))
qt.qpa.eglfs.kms: Adding QPlatformScreen 0x5572017fc0 ( "HDMI1" ) to QPA with geometry QRect(0,0 640x480) and isPrimary= false
qt.qpa.eglfs.kms:   virtual position is QPoint(0,0)
qt.qpa.input: libinput: event0  - ILITEK ILITEK-TP: is tagged by udev as: Touchscreen
qt.qpa.input: libinput: event0  - ILITEK ILITEK-TP: device is a touch device
qt.qpa.input: libinput: event1  - ILITEK ILITEK-TP Mouse: is tagged by udev as: Mouse
qt.qpa.input: libinput: event1  - ILITEK ILITEK-TP Mouse: device is a pointer
qt.qpa.input: xkbcommon not available, not performing key mapping
qt.qpa.input: libinput: registerDevice /dev/input/event0 - ILITEK ILITEK-TP
qt.qpa.input.devices: Registered QInputDevice(QPointingDevice("ILITEK ILITEK-TP" TouchScreen id=3392 ptrType=Finger caps=Position|Area maxPts=16)
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/qml/QtQuick/libqtquick2plugin.so, metadata=
{
    "IID": "org.qt-project.Qt.QQmlExtensionInterface/1.0",
    "archlevel": 0,
    "className": "QtQuick2Plugin",
    "debug": false,
    "uri": [
        "QtQuick"
    ],
    "version": 395776
}


qt.core.library: "/usr/local/qt6_10_1/qml/QtQuick/libqtquick2plugin.so" loaded library
qt.core.plugin.factoryloader: checking directory path "/usr/local/qt6_10_1/plugins/accessiblebridge" ...
qt.core.plugin.factoryloader: checking directory path "/home/pi/accessiblebridge" ...

[jsulm]

@MHermann said in Qt quick application not visible on Raspberry Pi 1920x515:

export QT_QPA_PLATFORM=eglfs #linuxfb #eglfs

Did you try linuxfb?

[MHermann]

@jsulm: Yes. I already tried linuxfb.

At the moment I try to us another display (1280 x 800).
My second test application (shows only a png) is shown on this display, when I use linuxfb.

But my first test application (only shows a rectangle and a text) is still not visible.

Any ideas what is wrong?

Here is my first test application, that is not visible:

Content of CMakeLists.txt:

cmake_minimum_required(VERSION 3.21)

project(QtQuickTest LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# WICHTIG für Qt6 + QML
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_AUTOUIC ON)

find_package(Qt6 REQUIRED COMPONENTS Core Gui Quick)

qt_standard_project_setup()

qt_add_executable(appTest
    main.cpp
    qml.qrc
)

qt_add_qml_module(appTest
    URI QtQuickTest
    VERSION 1.0
    QML_FILES main.qml
)

target_link_libraries(appTest PRIVATE Qt6::Quick Qt6::Gui Qt6::Core)

Content of qml.qrc:

<RCC>
    <qresource prefix="/">
        <file>main.qml</file>
    </qresource>
</RCC>

Content of main.cpp:

#include <QGuiApplication>
#include <QQmlApplicationEngine>

int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);

    QQmlApplicationEngine engine;
    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));

    if (engine.rootObjects().isEmpty())
        return -1;

    return app.exec();
}

Content of main.qml:

mport QtQuick 6.10
import QtQuick.Window 6.10

Window {
    visible: true
    width: 1280     // Passe an dein Display an
    height: 800
    visibility: Window.FullScreen

    Rectangle {
        anchors.fill: parent
        height: 480
        color: "yellow"

        Text {
            anchors.centerIn: parent
            text: "Hello Raspberry Pi"
            color: "white"
            font.pixelSize: 32
        }
    }
}

And here is my second test application, that is visible:

Content of CMakeLists.txt:

cmake_minimum_required(VERSION 3.21)

project(QtQuickTest2 LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# WICHTIG für Qt6 + QML
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_AUTOUIC ON)

find_package(Qt6 REQUIRED COMPONENTS Core Gui Quick)

qt_standard_project_setup()

qt_add_executable(appTest
    main.cpp
    qml.qrc
)

qt_add_qml_module(appTest
    URI QtQuickTest
    VERSION 1.0
    QML_FILES main.qml
)

target_link_libraries(appTest PRIVATE Qt6::Quick Qt6::Gui Qt6::Core)

Content of qml.qrc:

<RCC>
    <qresource prefix="/">
        <file>main.qml</file>
        <file>Background.jpg</file>
    </qresource>
</RCC>

Content of main.cpp:

#include <QGuiApplication>
#include <QQmlApplicationEngine>

int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);

    QQmlApplicationEngine engine;
    const QUrl url(QStringLiteral("qrc:/main.qml"));
    engine.load(url);

    if (engine.rootObjects().isEmpty())
        return -1;

    return app.exec();
}

Content of main.qml:

import QtQuick 6.10
import QtQuick.Window 6.10

Window {
    visible: true
    width: 640     // Passe an dein Display an
    height: 480
    visibility: Window.FullScreen

    Image {
        anchors.fill: parent
        source: "Background.jpg"
        fillMode: Image.PreserveAspectFit
    }
}

[jsulm]

@MHermann Set QT_DEBUG_PLUGINS env variable before you start your app and check the output (see https://doc.qt.io/qt-6/debug.html)

[MHermann]

@jsulm: In my app-start-skript I set:

export QT_DEBUG_PLUGINS=1

I changed the main.qml of the application, that should show a rectanlge and a text (I updated the code in my previous post) . And now I get following errors:

qt.qpa.plugin: init_platform called with pluginNamesWithArguments "linuxfb" platformPluginPath "" platformThemeName ""
qt.core.plugin.factoryloader: checking directory path "/usr/local/qt6_10_1/plugins/platforms" ...
qt.core.plugin.factoryloader: looking at "libqvnc.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/platforms/libqvnc.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "vnc"
        ]
    },
    "archlevel": 0,
    "className": "QVncIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("vnc")
qt.core.plugin.factoryloader: looking at "libqeglfs.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/platforms/libqeglfs.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "eglfs"
        ]
    },
    "archlevel": 0,
    "className": "QEglFSIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("eglfs")
qt.core.plugin.factoryloader: looking at "libqminimal.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/platforms/libqminimal.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimal"
        ]
    },
    "archlevel": 0,
    "className": "QMinimalIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("minimal")
qt.core.plugin.factoryloader: looking at "libqlinuxfb.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/platforms/libqlinuxfb.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "linuxfb"
        ]
    },
    "archlevel": 0,
    "className": "QLinuxFbIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("linuxfb")
qt.core.plugin.factoryloader: looking at "libqoffscreen.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/platforms/libqoffscreen.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "offscreen"
        ]
    },
    "archlevel": 0,
    "className": "QOffscreenIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("offscreen")
qt.core.plugin.factoryloader: looking at "libqminimalegl.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/platforms/libqminimalegl.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimalegl"
        ]
    },
    "archlevel": 0,
    "className": "QMinimalEglIntegrationPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("minimalegl")
qt.core.plugin.factoryloader: checking directory path "/home/pi/platforms" ...
qt.qpa.plugin: Attempting to load Qt platform plugin "linuxfb" with arguments QList()
qt.core.library: "/usr/local/qt6_10_1/plugins/platforms/libqlinuxfb.so" loaded library
qt.qpa.plugin: Successfully loaded Qt platform plugin "linuxfb"
qt.qpa.theme: Adding platform integration's theme names to list of theme names: QList()
qt.qpa.theme: Failed to create platform theme; using "null" platform theme
qt.qpa.input: libinput: event0  - ILITEK ILITEK-TP: is tagged by udev as: Touchscreen
qt.qpa.input: libinput: event0  - ILITEK ILITEK-TP: device is a touch device
qt.qpa.input: libinput: event1  - ILITEK ILITEK-TP Mouse: is tagged by udev as: Mouse
qt.qpa.input: libinput: event1  - ILITEK ILITEK-TP Mouse: device is a pointer
qt.qpa.input: xkbcommon not available, not performing key mapping
qt.qpa.input: libinput: registerDevice /dev/input/event0 - ILITEK ILITEK-TP
qt.qpa.input.devices: Registered QInputDevice(QPointingDevice("ILITEK ILITEK-TP" TouchScreen id=3392 ptrType=Finger caps=Position|Area maxPts=16)
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/qml/QtQuick/libqtquick2plugin.so, metadata=
{
    "IID": "org.qt-project.Qt.QQmlExtensionInterface/1.0",
    "archlevel": 0,
    "className": "QtQuick2Plugin",
    "debug": false,
    "uri": [
        "QtQuick"
    ],
    "version": 395776
}


qt.core.library: "/usr/local/qt6_10_1/qml/QtQuick/libqtquick2plugin.so" loaded library
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/qml/QtQuick/Window/libquickwindowplugin.so, metadata=
{
    "IID": "org.qt-project.Qt.QQmlEngineExtensionInterface",
    "archlevel": 0,
    "className": "QtQuick_WindowPlugin",
    "debug": false,
    "uri": [
        "QtQuick.Window"
    ],
    "version": 395776
}


qt.core.library: "/usr/local/qt6_10_1/qml/QtQuick/Window/libquickwindowplugin.so" loaded library
qt.core.plugin.factoryloader: checking directory path "/usr/local/qt6_10_1/plugins/scenegraph" ...
qt.core.plugin.factoryloader: checking directory path "/home/pi/scenegraph" ...
Could not create scene graph context for backend 'opengl' - check that plugins are installed correctly in /usr/local/qt6_10_1/plugins
qt.core.plugin.factoryloader: checking directory path "/usr/local/qt6_10_1/plugins/imageformats" ...
qt.core.plugin.factoryloader: looking at "libqsvg.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqsvg.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "svg",
            "svgz"
        ],
        "MimeTypes": [
            "image/svg+xml",
            "image/svg+xml-compressed"
        ]
    },
    "archlevel": 0,
    "className": "QSvgPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("svg", "svgz")
qt.core.plugin.factoryloader: looking at "libqtga.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqtga.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "tga"
        ],
        "MimeTypes": [
            "image/x-tga"
        ]
    },
    "archlevel": 0,
    "className": "QTgaPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("tga")
qt.core.plugin.factoryloader: looking at "libqwebp.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqwebp.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "webp"
        ],
        "MimeTypes": [
            "image/webp"
        ]
    },
    "archlevel": 0,
    "className": "QWebpPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("webp")
qt.core.plugin.factoryloader: looking at "libqicns.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqicns.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "icns"
        ],
        "MimeTypes": [
            "image/x-icns"
        ]
    },
    "archlevel": 0,
    "className": "QICNSPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("icns")
qt.core.plugin.factoryloader: looking at "libqtiff.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqtiff.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "tiff",
            "tif"
        ],
        "MimeTypes": [
            "image/tiff",
            "image/tiff"
        ]
    },
    "archlevel": 0,
    "className": "QTiffPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("tiff", "tif")
qt.core.plugin.factoryloader: looking at "libqico.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqico.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "ico",
            "cur"
        ],
        "MimeTypes": [
            "image/vnd.microsoft.icon",
            "image/vnd.microsoft.icon"
        ]
    },
    "archlevel": 0,
    "className": "QICOPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("ico", "cur")
qt.core.plugin.factoryloader: looking at "libqgif.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqgif.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "gif"
        ],
        "MimeTypes": [
            "image/gif"
        ]
    },
    "archlevel": 0,
    "className": "QGifPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("gif")
qt.core.plugin.factoryloader: looking at "libqwbmp.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqwbmp.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "wbmp"
        ],
        "MimeTypes": [
            "image/vnd.wap.wbmp"
        ]
    },
    "archlevel": 0,
    "className": "QWbmpPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("wbmp")
qt.core.plugin.factoryloader: looking at "libqjpeg.so"
qt.core.plugin.loader: Found metadata in lib /usr/local/qt6_10_1/plugins/imageformats/libqjpeg.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "jpg",
            "jpeg",
            "jfif"
        ],
        "MimeTypes": [
            "image/jpeg",
            "image/jpeg",
            "image/jpeg"
        ]
    },
    "archlevel": 0,
    "className": "QJpegPlugin",
    "debug": false,
    "version": 395776
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("jpg", "jpeg", "jfif")
qt.core.plugin.factoryloader: checking directory path "/home/pi/imageformats" ...
qt.core.library: "/usr/local/qt6_10_1/plugins/imageformats/libqsvg.so" loaded library
qt.core.library: "/usr/local/qt6_10_1/plugins/imageformats/libqtga.so" loaded library
qt.core.library: "/usr/local/qt6_10_1/plugins/imageformats/libqwebp.so" loaded library
qt.core.library: "/usr/local/qt6_10_1/plugins/imageformats/libqicns.so" loaded library
qt.core.library: "/usr/local/qt6_10_1/plugins/imageformats/libqtiff.so" loaded library
qt.core.library: "/usr/local/qt6_10_1/plugins/imageformats/libqico.so" loaded library
qt.core.library: "/usr/local/qt6_10_1/plugins/imageformats/libqgif.so" loaded library
qt.core.library: "/usr/local/qt6_10_1/plugins/imageformats/libqwbmp.so" loaded library
qt.core.library: "/usr/local/qt6_10_1/plugins/imageformats/libqjpeg.so" loaded library
This plugin does not support createPlatformOpenGLContext!
QRhiGles2: Failed to create temporary context
This plugin does not support createPlatformOpenGLContext!
QRhiGles2: Failed to create context
Failed to create RHI (backend 2)
Failed to initialize graphics backend for OpenGL.
./start_app.sh: line 60:  1062 Aborted                 ./appTest

So.
The application, that shows an jpg, is okay.
But the application, that shows a rectangle and a text, is not okay.

[jsulm]

@MHermann said in Qt quick application not visible on Raspberry Pi 1920x515:

qt.core.plugin.factoryloader: checking directory path "/home/pi/scenegraph" ...
Could not create scene graph context for backend 'opengl' - check that plugins are installed correctly in /usr/local/qt6_10_1/plugins

QML requires OpenGL

[MHermann]

@jsulm: In /usr/local/qt6_10_1/plugins I see:

assetimporters
canbus
designer
egldeviceintegrations
generic
diconengines
imageformats
networkinformation
platforms
platformthemes
qmltooling
sqldrivers
tls

In /usr/local/qt6_10_1/plugins/platforms I see:

libqeglfs.so 
libqlinuxfb.so  
libqminimalegl.so  
libqminimal.so  
libqoffscreen.so  
libqvnc.so

So. Something is missing? scenegraph/libqtquickscenegraph_opengl.so i not there? I need this?
Can I install this additionally?
Or do I have to build qt again for raspi with the correct configuration?

(I want to run this application on Raspbian Trixie Lite. So I don't have a desktop.)

[MHermann]

@jsulm

I configure qt like this:

cmake .. -GNinja   
-DCMAKE_TOOLCHAIN_FILE=/home/user/sysroots/rpi-bookworm/rpi-aarch64.cmake   
-DCMAKE_INSTALL_PREFIX=/opt/qt6.10.1-rpi_NEW   
-DQT_HOST_PATH=/opt/qt6.10.1-host   
-DQT_FEATURE_opengl=ON  
-DQT_FEATURE_opengles2=ON   
-DQT_FEATURE_egl=ON   
-DQT_FEATURE_eglfs=ON   
-DQT_FEATURE_xcb=OFF   
-DQT_FEATURE_desktop_opengl=OFF*
-DCMAKE_BUILD_TYPE=Release      
-DQT_BUILD_TESTS=OFF    
-DQT_BUILD_EXAMPLES=OFF

But in config.summery I find:

OpenGL:
    Desktop OpenGL ....................... yes
    opengles2 ............................ yes
    OpenGL ES 3.0 ........................ yes
    OpenGL ES 3.1 ........................ yes
    OpenGL ES 3.2 ........................ yes
  Vulkan ................................. no
  Metal .................................. no
  QGraphicsFrameCapture .................. no
  Session Management ..................... yes
  Multi-threaded image and painting helpers  yes

Why is Desktop OpenGL yes ?
Is this the reason, why libqtquickscenegraph_opengl.so is not built?
Can anyone help me at this point?
How is the configuration for qt correct?

[MHermann]

Can nobdoy help me?
No ideas?

[jsulm]

@MHermann If you want to know why a module was enabled or disabled in configure run then check the content of config.log file.