System Environment:
--------------------------

--Platform:i965

--Architecture(32-bit,64-bit,compatiblity):64bit & 32bit

--2D driver:
commit 96246c27cb836bae8ee02c46c68a1f2102efd14b

--Drm
commit b9417f41418321d5081547a3a3386dcccae7541f


--3D driver:
commit aac2d99dc316c069faa46dd43ff034155754c6b3

--Xserver:
commit 95c02adea80a14e18bb51876bc1418eccdade31d


--Kernel:
2.6.23


Bug detailed description:
-------------------------
startx ,run brick , draw nothing ,and if you close the case, it will crash X .



Reproduce steps:
----------------
 run brick , then close it .



Current result:
----------------
draw nothing and crash X 


Expected result:
----------------
run normally