Index: /trunk/src/VBox/Devices/Graphics/DevVGA-SVGA.cpp
===================================================================
--- /trunk/src/VBox/Devices/Graphics/DevVGA-SVGA.cpp	(revision 88546)
+++ /trunk/src/VBox/Devices/Graphics/DevVGA-SVGA.cpp	(revision 88547)
@@ -6409,4 +6409,8 @@
             vmsvgaR3InitFifo3DCaps(pThis, pThisCC);
         }
+        else {
+            LogRel(("VMSVGA3d: 3D support disabled! (vmsvga3dPowerOn -> %Rrc)\n", rc));
+            pThis->svga.f3DEnabled = false;
+        }
     }
 # else  /* !VBOX_WITH_VMSVGA3D */