diff --git a/src/radeon_exa.c b/src/radeon_exa.c
index 0193a28..dcb2018 100644
--- a/src/radeon_exa.c
+++ b/src/radeon_exa.c
@@ -52,7 +52,7 @@
 #define RINFO_FROM_SCREEN(pScr) ScrnInfoPtr pScrn =  xf86Screens[pScr->myNum]; \
     RADEONInfoPtr info   = RADEONPTR(pScrn)
 
-#define RADEON_TRACE_FALL 0
+#define RADEON_TRACE_FALL 1
 #define RADEON_TRACE_DRAW 0
 
 #if RADEON_TRACE_FALL
diff --git a/src/radeon_exa_render.c b/src/radeon_exa_render.c
index f519a3e..6f9891d 100644
--- a/src/radeon_exa_render.c
+++ b/src/radeon_exa_render.c
@@ -317,6 +317,49 @@ static Bool RADEONSetupSourceTile(PicturePtr pPict,
     return TRUE;
 }
 
+/*
+ * REPEAT_NONE acts as if the texture is infinitely extended with alpha=0 pixels.
+ * You can't get that for r3/4/5xx because the border color register has the same
+ * format as the texture source.
+ */
+//    if (pPict->transform != 0 && !pPict->repeat && PICT_FORMAT_A(pPict->format) == 0)
+/* Picture->transform is None
+   or Picture->transform.xx/xy are zero
+   and xy/yx are +/- 0x10000 or vice versa
+   and the translation components are integral */
+#if 1
+static Bool RADEONCheckPixelExactTransform(PicturePtr pPict)
+{
+
+    if (pPict->transform == 0)
+	return TRUE;
+
+    if (pPict->repeat) 
+	return TRUE;
+
+    if (PICT_FORMAT_A(pPict->format) != 0)
+	return TRUE;
+
+    if ((((pPict->transform->matrix[0][0] == 0) &&
+	  (pPict->transform->matrix[1][1] == 0)) &&
+	 (((pPict->transform->matrix[0][1] == 0x10000) ||
+	   (pPict->transform->matrix[0][1] == -0x10000)) &&
+	  ((pPict->transform->matrix[0][1] == 0x10000) ||
+	   (pPict->transform->matrix[0][1] == -0x10000))
+	  )) ||
+	(((pPict->transform->matrix[0][1] == 0) &&
+	  (pPict->transform->matrix[1][0] == 0)) &&
+	 (((pPict->transform->matrix[0][0] == 0x10000) ||
+	   (pPict->transform->matrix[0][0] == -0x10000)) &&
+	  ((pPict->transform->matrix[1][1] == 0x10000) ||
+	   (pPict->transform->matrix[1][1] == -0x10000))
+	  )))
+	return TRUE;
+
+     return FALSE;
+}
+#endif
+
 /* R100-specific code */
 
 static Bool R100CheckCompositeTexture(PicturePtr pPict, int unit)
@@ -980,9 +1023,21 @@ static Bool R300CheckCompositeTexture(PicturePtr pPict, int unit, Bool is_r500)
      * matter. I have not, however, verified that the X server always does such
      * clipping.
      */
+#if 0
+    if (pPict->transform != 0 && !pPict->repeat && PICT_FORMAT_A(pPict->format) == 0) {
+	ErrorF("transform:\n");
+	ErrorF("%x %x %x\n", pPict->transform->matrix[0][0], pPict->transform->matrix[0][1], pPict->transform->matrix[0][2]);
+	ErrorF("%x %x %x\n", pPict->transform->matrix[1][0], pPict->transform->matrix[1][1], pPict->transform->matrix[1][2]);
+	ErrorF("%x %x %x\n", pPict->transform->matrix[2][0], pPict->transform->matrix[2][1], pPict->transform->matrix[2][2]);
+
+    }
+#endif
+    if (!RADEONCheckPixelExactTransform(pPict))
+	RADEON_FALLBACK(("REPEAT_NONE unsupported for transformed xRGB source\n"));
+#if 0
     if (pPict->transform != 0 && !pPict->repeat && PICT_FORMAT_A(pPict->format) == 0)
 	RADEON_FALLBACK(("REPEAT_NONE unsupported for transformed xRGB source\n"));
-
+#endif
     return TRUE;
 }