我用yum安装ati 9550显卡驱动，
[root@localhost ~]# fglrxinfo
Xlib: [U]extension "XFree86-DRI" missing on display ":0.0".[/U]
display: :0.0 screen: 0
OpenGL vendor string: Mesa project:
www.mesa3d.org
OpenGL renderer string: Mesa GLX Indirect
OpenGL version string: 1.2 (1.5 Mesa 6.5.1)
有[U]extension "XFree86-DRI" missing on display ":0.0".[/U]错误而且
[root@localhost ~]# glxgears
Xlib: extension "XFree86-DRI" missing on display ":0.0".
1485 frames in 5.4 seconds = 275.582 FPS
1469 frames in 5.3 seconds = 278.493 FPS
1469 frames in 5.4 seconds = 273.673 FPS
数值超底，还不如自带的驱动，
？？？？？？？？？？？
