不知道改了什么，我用如下命令，显示这些，其中应该是少了composite extension，跑了很多地方，没有人能够解决。可能是Eemerld的问题？
weive@weive-laptop:~$ compiz replace
Checking for Xgl: not present.
No whitelisted driver found
SKIP_CHECKS is yes, so continuing despite problems.
Checking for texture_from_pixmap: not present.
Trying again with indirect rendering:
Checking for texture_from_pixmap: present.
Checking for non power of two support: present.
Checking for Composite extension: not present.
SKIP_CHECKS is yes, so continuing despite problems.
Checking for nVidia: not present.
Checking for FBConfig: present.
Checking for Xgl: not present.
Starting emerald
/usr/bin/compiz.real (core) - Fatal: No composite extension
(emerald:16615): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed
