From 6828fc9ef5af073615e3ecc68355ad36d24c70da Mon Sep 17 00:00:00 2001
From: Martin Zibricky <mzibr.public@gmail.com>
Date: Thu, 22 Dec 2011 19:17:35 +0100
Subject: [PATCH] fixed bug 907857: opengl rendering disabled for mac

---
 openlp/core/ui/maindisplay.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/openlp/core/ui/maindisplay.py b/openlp/core/ui/maindisplay.py
index 03b5da7e6..c8d061e17 100644
--- a/openlp/core/ui/maindisplay.py
+++ b/openlp/core/ui/maindisplay.py
@@ -30,6 +30,7 @@ and play multimedia within OpenLP.
 """
 import logging
 import os
+import sys
 
 from PyQt4 import QtCore, QtGui, QtWebKit, QtOpenGL
 from PyQt4.phonon import Phonon
@@ -61,7 +62,12 @@ class Display(QtGui.QGraphicsView):
         self.controller = controller
         self.screen = {}
         self.plugins = PluginManager.get_instance().plugins
-        self.setViewport(QtOpenGL.QGLWidget())
+        # FIXME: On Mac OS X (tested on 10.7) the display screen is corrupt with
+        # OpenGL. Only white blank screen is shown on the 2nd monitor all the
+        # time. We need to investigate more how to use OpenGL properly on Mac OS
+        # X.
+        if sys.platform != 'darwin':
+            self.setViewport(QtOpenGL.QGLWidget())
 
     def setup(self):
         """