[Ubuntu-zh] 我的ubuntu10.10无法启用桌面效果:(

[薇]

我的显卡配置 
     *-display               
       description: VGA compatible controller
       product: GT216 [GeForce GT 240M]
       vendor: nVidia Corporation
       physical id: 0
       bus info: pci在0000:01:00.0
       version: a2
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
       configuration: driver=nvidia latency=0
       resources: irq:16 memory:cc000000-ccffffff memory:d0000000-dfffffff memory:ce000000-cfffffff ioport:2000(size=128) memory:cd000000-cd07ffff
我下载的是Nvidia官方驱动并安装成功：~$ nvidia-settings -v
nvidia-settings:  version 260.19.44 
(buildmeister在swio-display-x86-rhel47-04.nvidia.com)  Sun Feb 27 21:50:27 PST
2011
  The NVIDIA X Server Settings tool.
  This program is used to configure the NVIDIA Linux graphics driver.
  For more detail, please see the nvidia-settings(1) man page.
  Copyright (C) 2004 - 2010 NVIDIA Corporation.
当我准备启动特效时:~$ gnome-appearance-properties 并选择选项卡》视觉效果》正常时命令行有failed error等字样具体如下(gnome-appearance-properties:2735): Gdk-CRITICAL **: IA__gdk_display_sync: assertion `GDK_IS_DISPLAY (display)' failed
你的系统上没有可用的图形驱动来支持复合的扩展，或者当前的驱动已经支持了。
compiz (core) - Fatal: No valid GL extensions string found.
compiz (core) - Error: Failed to manage screen: 0
compiz (core) - Fatal: No manageable screens found on display :0.0
Launching fallback window manager
(gnome-appearance-properties:2735): Gdk-CRITICAL **: IA__gdk_display_sync: assertion `GDK_IS_DISPLAY (display)' failed
屏幕闪烁2次后，弹出“无法启用桌面效果”对话框:(
还有一种方法就是安装CompizConfig 设置管理器我安装的compiz的包有
compiz                        install
compiz-core                    install
compiz-fusion-bcop                install
compiz-fusion-plugins-extra            install
compiz-fusion-plugins-main            install
compiz-gnome                    install
compiz-plugins                    install
compizconfig-backend-gconf            install
compizconfig-settings-manager            install
libcompizconfig0                install
python-compizconfig                install
我用compizConfig 设置管理器来配置什么炫的效果也没有,有时看PPS时闪烁,是我的驱动没装好吗？:( pls help me !
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