pyqt5 ubuntu上的全屏不需要的行为

Question

我正在Ubuntu上运行PYQT5应用程序，当应用程序处于全屏模式时，当单击对话框时，我会在应用程序上弹出码头和标题栏的这种行为。当对话框关闭时，一切都会恢复正常。这个问题不会在我的英特尔上发生，而是在ARM64上发生。我的系统是Jetson Agx Xavier 32GB。我在下面发布了一个示例代码，该代码重现了问题。

我看到了另一篇建议在设置窗口标志qt.x11bypasswindowmanagerhint或qt.bypasswindowmanagerhint时提出的一篇文章，尽管它涉及一些问题，但这也没有起作用。

任何帮助都将被大大应用。

from PyQt5.QtWidgets import QComboBox, QVBoxLayout, QWidget, QHBoxLayout, QApplication, QFileDialog, QPushButton, QMainWindow
from PyQt5.QtCore import Qt
import sys
import pyautogui


class TestCode(QMainWindow):

    def __init__(self):
        super(TestCode, self).__init__()

        self.OpenDialog = QPushButton()
        self.OpenDialog.setText("OPEN D BOX")
        self.OpenDialog.clicked.connect(self.openDBox)

        self.closeWindow = QPushButton()
        self.closeWindow.setText("CLOSE")
        self.closeWindow.clicked.connect(self.close)

        colors = ["Yellow", "Magenta", "Black", "White",
                       "Green", "Blue", "Cyan", "Red"]
        self.drop_down = QComboBox()
        for color in colors:
            self.drop_down.addItem(color)

        self.buttonLayout = QVBoxLayout()
        self.buttonLayout.addWidget(self.OpenDialog)
        self.buttonLayout.addWidget(self.drop_down)
        self.buttonLayout.addWidget(self.closeWindow)

        self.mainWidget = QWidget()
        self.mainLayout = QHBoxLayout(self.mainWidget)
        self.freeSpace = QWidget()
        self.freeSpace.setStyleSheet("background-color: black")

        self.mainLayout.setSpacing(10)
        self.mainLayout.setContentsMargins(20, 20, 20, 20)
        self.mainLayout.addLayout(self.buttonLayout)
        self.mainLayout.addWidget(self.freeSpace, 1)

        self.setCentralWidget(self.mainWidget)

        self.showFullScreen()
        # screenWidth, screenHeight = pyautogui.size()
        # self.setGeometry(0,0,screenWidth+1, screenHeight)

    def openDBox(self):

        openImageFile, _ = QFileDialog.getOpenFileName()

if __name__ == '__main__':
    app = QApplication(sys.argv)
    main_window = TestCode()
    # main_window.setWindowFlags(Qt.WindowStaysOnTopHint | Qt.FramelessWindowHint | Qt.BypassWindowManagerHint)

    main_window.show()
    sys.exit(app.exec_())