求助：安装beryl出现了一点问题

[luke03011]

参考http://wiki.beryl-project.org/index.php/Install/Ubuntu/Edgy/AiGLX安装
ps: 我的是笔记本 CPU：AMD2800+ 显卡集成 ATI　Ｘ２００

安装完成后出现下面的问题：

luke@luke-laptop:~$ beryl-manager
luke@luke-laptop:~$ Xlib: extension "XFree86-DRI" missing on display ":0.0".
**************************************************************
* Beryl system compatiblity check *
**************************************************************

Detected xserver : AIGLX

Checking Display :0.0 ...

Checking for XComposite extension : passed (v0.3)
Checking for XDamage extension : passed
Checking for RandR extension : passed
Checking for XSync extension : passed

Checking Screen 0 ...

Checking for GLX_SGIX_fbconfig : passed
Checking for GLX_EXT_texture_from_pixmap : passed
Xlib: extension "XFree86-DRI" missing on display ":0.0".
Checking for non power of two texture support : failed

Support for non power of two textures missing
Xlib: extension "XFree86-DRI" missing on display ":0.0".
beryl: glXBindTexImageEXT is missing
beryl: Failed to manage screen: 0
beryl: No manageable screens found on display :0.0

请问这事什么原因？有什么解决的办法。谢谢！！