diff -Naur xf86-video-tseng-1.2.5ORIG/src/tseng_driver.c xf86-video-tseng-1.2.5/src/tseng_driver.c
--- xf86-video-tseng-1.2.5ORIG/src/tseng_driver.c	2012-07-17 13:21:17.000000000 +0800
+++ xf86-video-tseng-1.2.5/src/tseng_driver.c	2014-12-06 21:44:19.000000000 +0800
@@ -40,7 +40,7 @@
 #include "mipointer.h"
 
 /* All drivers implementing backing store need this */
-#include "mibstore.h"
+/*BK#include "mibstore.h"*/
 
 #include "fb.h"
 
@@ -1453,7 +1453,7 @@
 	}
     }
 
-    miInitializeBackingStore(pScreen);
+    /*BKmiInitializeBackingStore(pScreen);*/
     xf86SetSilkenMouse(pScreen);
     /* Initialise cursor functions */
     miDCInitialize(pScreen, xf86GetPointerScreenFuncs());