python - PyQt WebEngineView interferes with MainMenu

Question

I'm trying to create an application that contains a web browser within it, but when I add the web browser my menu bar visually disappears but functionally remains in place. The following are two images, one showing the "self.centralWidget(self.web_widget)" commented out, and the other allows that line to run. If you run the example code, you will also see that while visually the entire web page appears as if the menu bar wasn't present, you have to click slightly below each entry field and button in order to activate it, behaving as if the menu bar was in fact present.

Web Widget Commented Out

Web Widget Active

Example Code

import os
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtWebEngineWidgets import *

class WebPage(QWebEngineView):
    def __init__(self, parent=None):
        QWebEngineView.__init__(self)
        self.current_url = ''
        self.load(QUrl("https://facebook.com"))
        self.loadFinished.connect(self._on_load_finished)

    def _on_load_finished(self):
        print("Url Loaded")

class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        # Initialize the Main Window
        super(MainWindow, self).__init__(parent)
        self.create_menu()
        self.add_web_widet()
        self.show()

    def create_menu(self):
        ''' Creates the Main Menu '''
        self.main_menu = self.menuBar()
        self.main_menu_actions = {}


        self.file_menu = self.main_menu.addMenu("Example File Menu")
        self.file_menu.addAction(QAction("Testing Testing", self))

    def add_web_widet(self):
        self.web_widget = WebPage(self)
        self.setCentralWidget(self.web_widget)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    main_window = MainWindow()
    main_window.showMaximized()
    sys.exit(app.exec_())  # only need one app, one running event loop

Development Environment Windows 10, PyQt5, pyqt5-5.9

EDIT

The problem doesn't seem to be directly related to the menu bar. Even removing the menu bar the issue still occurs. That said, changing from showMaximized() to showFullScreen() does seem to solve the problem.

Answer 1

I no longer believe this is an issue with PyQt5 specifically but rather a problem with the graphics driver. Specifically, if you look at Atlassian's HipChat application it has a similar problem which is documented here: https://jira.atlassian.com/browse/HCPUB-3177

Some individuals were able to solve the problem by running the application from the command prompt with the addendum "--disable-gpu" but that didn't work for my python application. On the other hand, rolling back the Intel(R) HD Graphics Driver did solve my problem. Version 21.20.16.4627 is the one that seems to be causing problems.