Reverted part of revision r12294 that introduced threading related problems under X11 due to checking the _display Display member variable assigned to the graphics thread from the main thread.
Reverted part of revision r12294 that introduced threading related problems under X11 due to checking the _display
Display member variable assigned to the graphics thread from the main thread.


scrawl/osg,artoolkit/osg,tomasthoresen/osg,jtorresfabra/osg,scrawl/osg,jtorresfabra/osg,artoolkit/osg,tomasthoresen/osg,jtorresfabra/osg,marchelbling/osg,artoolkit/osg,artoolkit/osg,marchelbling/osg,scrawl/osg,openscenegraph/osg,openscenegraph/osg,openscenegraph/osg,tomasthoresen/osg,openscenegraph/osg,tomasthoresen/osg,marchelbling/osg,jtorresfabra/osg,scrawl/osg,marchelbling/osg