EGLFS: OpenGL windows cannot be mixed with others.

Rohn

I am using below code to launch my window application(qml file loading) using PyQt5.QQuickView
@test.py
import os
import sys

from PyQt5.QtCore import QUrl
from PyQt5.QtGui import QGuiApplication
from PyQt5.QtQuick import QQuickView
from PyQt5.QtWebEngine import QtWebEngine

if name == 'main':
sys.argv.extend(['-platform', 'eglfs'])
app = QGuiApplication(sys.argv)
app.setApplicationName("Hello World")

QtWebEngine.initialize()
view = QQuickView()
view.setResizeMode(QQuickView.SizeRootObjectToView)
view.setSource(
    QUrl.fromLocalFile(os.path.join(os.path.dirname(__file__), 'myScrollView.qml'))

)

view.show()

sys.exit(app.exec_())

But I am getting an error as below

@error

QQuickView does not support using windows as a root item.

If you wish to create your root window from QML, consider using QQmlApplicationEngine instead.

EGLFS: OpenGL windows cannot be mixed with others.
sh: line 1: 10864 Aborted env "PYTHONUNBUFFERED"="1" "PYTHONPATH"="/home/root/.pycharm_helpers/pycharm_matplotlib_backend:/otis:/otis/protocols/generated" "PYCHARM_HOSTED"="1" "JETBRAINS_REMOTE_RUN"="1" "PYCHARM_MATPLOTLIB_PORT"="64833" "PYTHONIOENCODING"="UTF-8" /usr/bin/python3.5 -u /otis/temp/pyqt_file.py

Process finished with exit code 134

How to overcome this issue, please help me to resolve this issue.......I am using following in qml file

@qml file
import QtQuick 2.0
import QtQuick.Window 2.1
import QtQuick.Controls 2.0

Window{

}

Please let me know how to overcome those errors

SGaist

Hi,

Either follow the suggestion made:
@Rohn said in EGLFS: OpenGL windows cannot be mixed with others.:

If you wish to create your root window from QML, consider using QQmlApplicationEngine instead.

Or take a look at this example. It's C++ but you can translate it pretty easily in Python.

Rohn

@SGaist No , there is nothing related to my issue....please let me know the way to load the QML file(running application) using mentioned @test.py file using PyQt5 binding

SGaist

Yes it does since it's showing how to handle a QML file using a Window component.

Anyway here's how to load properly your Window based QML file:

engine =  QQmlApplicationEngine()
engine.load(QUrl.fromLocalFile(os.path.join(os.path.dirname(__file__), 'myScrollView.qml')));

And here's an improved version of your QML object to ensure there's something to show:

 Window{
     visible: true
     width: 512
     height: 300
 
     Text {
         anchors.centerIn: parent
         text: "Hello World!"
     }
 }