diff --git a/hw/xfree86/common/xf86RandR.c b/hw/xfree86/common/xf86RandR.c
index 4432ad9..7e446de 100644
--- a/hw/xfree86/common/xf86RandR.c
+++ b/hw/xfree86/common/xf86RandR.c
@@ -223,6 +223,9 @@ xf86RandRSetConfig (ScreenPtr		pScreen,
     Bool		    useVirtual = FALSE;
     Rotation		    oldRotation = randrp->rotation;
 
+    if (!scrp->vtSema)
+	return FALSE;
+
     miPointerPosition (&px, &py);
     for (mode = scrp->modes; ; mode = mode->next)
     {