Dear all,<br> In xserver 1.9.0, there is an access array to cache previous results to reduce cost. Howver, this optimization would modify the original index and give the wrong index to driver PrepareAccess. Also, sometimes driver PrepareAccess need to know the pixmap is used to be read or written. Now, nobody can confirm that the driver PrepareAccess can get the right index now. Can someone exaplain this? Thanks!<br>
<br>Best wishes,<br><br>Fancy<br>