diff --git a/exa/exa_render.c b/exa/exa_render.c
index 9909d7f46..5bfb07c4b 100644
--- a/exa/exa_render.c
+++ b/exa/exa_render.c
@@ -469,6 +469,23 @@ exaComposite(CARD8	op,
         return;
     }
 
+    /* simplify the drivers by reducing here */
+    switch (op) {
+	case PictOpDisjointClear:
+	case PictOpConjointClear:
+	    op = PictOpClear;
+	    break;    
+	case PictOpDisjointSrc:
+	case PictOpConjointSrc:
+	    op = PictOpSrc;
+	    break;    
+	case PictOpDisjointDst:
+	case PictOpConjointDst:
+	case PictOpDst:
+	    return;    
+	default:
+	    break;
+    }
 
     if (!pMask && pSrc->pDrawable)
     {
diff --git a/hw/xfree86/exa/exa_render.c b/hw/xfree86/exa/exa_render.c
index 9909d7f46..5bfb07c4b 100644
--- a/hw/xfree86/exa/exa_render.c
+++ b/hw/xfree86/exa/exa_render.c
@@ -469,6 +469,23 @@ exaComposite(CARD8	op,
         return;
     }
 
+    /* simplify the drivers by reducing here */
+    switch (op) {
+	case PictOpDisjointClear:
+	case PictOpConjointClear:
+	    op = PictOpClear;
+	    break;    
+	case PictOpDisjointSrc:
+	case PictOpConjointSrc:
+	    op = PictOpSrc;
+	    break;    
+	case PictOpDisjointDst:
+	case PictOpConjointDst:
+	case PictOpDst:
+	    return;    
+	default:
+	    break;
+    }
 
     if (!pMask && pSrc->pDrawable)
     {
diff --git a/hw/xfree86/exa/exapict.c b/hw/xfree86/exa/exapict.c
index 9909d7f46..5bfb07c4b 100644
--- a/hw/xfree86/exa/exapict.c
+++ b/hw/xfree86/exa/exapict.c
@@ -469,6 +469,23 @@ exaComposite(CARD8	op,
         return;
     }
 
+    /* simplify the drivers by reducing here */
+    switch (op) {
+	case PictOpDisjointClear:
+	case PictOpConjointClear:
+	    op = PictOpClear;
+	    break;    
+	case PictOpDisjointSrc:
+	case PictOpConjointSrc:
+	    op = PictOpSrc;
+	    break;    
+	case PictOpDisjointDst:
+	case PictOpConjointDst:
+	case PictOpDst:
+	    return;    
+	default:
+	    break;
+    }
 
     if (!pMask && pSrc->pDrawable)
     {