1 files changed, 4 insertions, 1 deletions
diff --git a/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qxcbglxwindow.cpp b/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qxcbglxwindow.cpp
index 8aabde8129..8d5bfb13d3 100644
--- a/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qxcbglxwindow.cpp
+++ b/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qxcbglxwindow.cpp
@@ -62,7 +62,10 @@ void QXcbGlxWindow::resolveFormat()
 
 void *QXcbGlxWindow::createVisual()
 {
-    return qglx_findVisualInfo(DISPLAY_FROM_XCB(m_screen), m_screen->screenNumber(), &m_format);
+    QXcbScreen *scr = xcbScreen();
+    if (!scr)
+        return Q_NULLPTR;
+    return qglx_findVisualInfo(DISPLAY_FROM_XCB(scr), scr->screenNumber(), &m_format);
 }
 
 QT_END_NAMESPACE