diff --git a/pyqtgraph/util/get_resolution.py b/pyqtgraph/util/get_resolution.py
index 79e17170..421afabe 100644
--- a/pyqtgraph/util/get_resolution.py
+++ b/pyqtgraph/util/get_resolution.py
@@ -1,13 +1,16 @@
 from .. import mkQApp
+from ..Qt import QtGui
 
 def test_screenInformation():
+    # a qApp is still needed, otherwise screen is None
     qApp = mkQApp()
-    desktop = qApp.desktop()
-    resolution = desktop.screenGeometry()
-    availableResolution = desktop.availableGeometry()
+    screen = QtGui.QGuiApplication.primaryScreen()
+    screens = QtGui.QGuiApplication.screens()
+    resolution = screen.size()
+    availableResolution = screen.availableSize()
     print("Screen resolution: {}x{}".format(resolution.width(), resolution.height()))
     print("Available geometry: {}x{}".format(availableResolution.width(), availableResolution.height()))
-    print("Number of Screens: {}".format(desktop.screenCount()))
+    print("Number of Screens: {}".format(len(screens)))
     return None