diff --git a/src/mesa/drivers/dri/i915tex/intel_buffers.c b/src/mesa/drivers/dri/i915tex/intel_buffers.c
index 62ff54b..d143787 100644
--- a/src/mesa/drivers/dri/i915tex/intel_buffers.c
+++ b/src/mesa/drivers/dri/i915tex/intel_buffers.c
@@ -264,10 +264,17 @@ intelWindowMoved(struct intel_context *intel)
 
       pf_active = pf_pipes && (pf_pipes & intel->sarea->pf_active) == pf_pipes;
 
-      if (INTEL_DEBUG & DEBUG_LOCK)
-	 if (pf_active != intel_fb->pf_active)
-	    _mesa_printf("%s - Page flipping %sactive\n", __progname,
-			 pf_active ? "" : "in");
+      if (1 /*INTEL_DEBUG & DEBUG_LOCK*/) {
+	 if (pf_active != intel_fb->pf_active || (pf_active && pf_pipes !=
+						  intel_fb->pf_pipes)) {
+	    if (pf_active) {
+	       _mesa_printf("%s - Page flipping active, pf_pipes=0x%x\n",
+			    __progname, pf_pipes);
+	    } else {
+	       _mesa_printf("%s - Page flipping inactive\n", __progname);
+	    }
+	 }
+      }
 
       if (pf_active) {
 	 /* Sync pages between pipes if we're flipping on both at the same time */
@@ -320,6 +327,14 @@ intelWindowMoved(struct intel_context *intel)
 	 drmVBlank vbl;
 	 int i;
 
+	 if (1 /*INTEL_DEBUG & DEBUG_LOCK*/) {
+	    if (flags & VBLANK_FLAG_SECONDARY) {
+	       fprintf(stderr, "Vsync to pipe B\n");
+	    } else {
+	       fprintf(stderr, "Vsync to pipe A\n");
+	    }
+	 }
+
 	 vbl.request.type = DRM_VBLANK_ABSOLUTE;
 
 	 if ( intel_fb->vblank_flags & VBLANK_FLAG_SECONDARY ) {