黑呵曰：你不得不感叹Linux的强大。如果windows因为显卡驱动开不了机你会怎么办？重装。。。。Linux提供了一个强大的命令行（windows的那个简直称不上命令行）让你直接修改设置，修改完成不用重启，就能运行。Linux的确比windows好。
进入命令行用vi命令修改以下文件
/etc/X11/Xorg.conf或者可能是/etc/X11/XF86config.conf
修改Xorg.conf是件简单的事，配置文件结构简单，也没有复杂的语法，但是一但配置失败，后果是比较严重的，，所以强烈建议每次修改之前做好备份工作。
Xorg.conf一般位于/etc/X11/xorg.conf
包含了你的显卡信息和显示器信息。
===============sample as my config======================
# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
# sudo dpkg-reconfigure -phigh xserver-xorg
装as4.0for 64bit可能出现显示器花屏现象,可以通过:system-config-display --reconfig修改/etc/X11/Xorg.conf/etc/X11/XF86config.conf还可以通过vncvncserver客户端vncviwer修改Xorg.conf是件简单的事，配置文件结构简单，也没有复杂的语法，但是一但配置失败，后果是比较严重的，，所以强烈建议每次修改之前做好备份工作。
Xorg.conf一般位于/etc/X11/xorg.conf
包含了你的显卡信息和显示器信息。
===============sample as my config======================
# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
# sudo dpkg-reconfigure -phigh xserver-xorg
[1;31m带#的是注释掉的行，不用管。[m
Section "Files"
FontPath "/usr/share/X11/fonts/misc"
FontPath "/usr/share/X11/fonts/cyrillic"
FontPath "/usr/share/X11/fonts/100dpi/:unscaled"
FontPath "/usr/share/X11/fonts/75dpi/:unscaled"
FontPath "/usr/share/X11/fonts/Type1"
FontPath "/usr/share/X11/fonts/CID"
FontPath "/usr/share/X11/fonts/100dpi"
FontPath "/usr/share/X11/fonts/75dpi"
# paths to defoma fonts
FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/CID"
EndSection
[1;31m一段一段的用Section & EndSection隔开，上面是定义一些文件的路径[m
Section "Module"
# Load "GLcore"//这行
Load "i2c"
Load "bitmap"
Load "ddc"
# Load "dri" //还有这行，是我装显卡驱动时注释掉的
Load "extmod"
Load "freetype"
Load "glx" //这行是加上的，有些记不清了，不过装好了以后就可以打quake了
Load "int10"
Load "type1"
Load "vbe"
EndSection
[1;31mModule，顾名思意，模块，加载很多种模块，当你为你的显卡装驱动的时候，你会修改这些东西的，修改完毕且正确，那么你就可以享受同windows系统下一样的显卡速度了。[m
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "pc104"
Option "XkbLayout" "us"
EndSection
[1;31m键盘，显然，你不用修改这里，never，除非你的旧键盘坏了，而且你想换一块与众不同的新键盘。[m
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
Option "Emulate3Buttons" "true"
Option "ZAxisMapping" "4 5"
EndSection
[1;31m鼠标，同上，不过，罗技的鼠标在这里也发挥不了用武之地，因为这里没有cs。[m
Section "Device"
Identifier "NVIDIA Corporation NVCrush11 [GeForce2 MX Integrated Graphics]"
Driver "nvidia"
BusID "PCI:2:0:0"
EndSection
[1;31m显卡，这个是非常重要的一部分，虽然只有三行，但是显示的性能基本都在这里体现，只修改这里是没有用的，你必须做相应的修改，针对你的显卡和系统，搜一下网上的文章，你会搞定他的。[m
Section "Monitor"
Identifier "Philips 105S"//只是一个名字，但是改了看起来更好一些
Option "DPMS" //让能源之星见鬼去吧，注释掉，如果你愿意
HorizSync 30-63 //这两行改之前请查阅你显示器的型号，根据
VertRefresh 50-120 //参数做出相应修改，[1;32m不要写反！[m
EndSection
[1;31m显示器，困扰了我许久的问题，因为xorg对我早年的伤害，我一直不敢轻易尝试修改这个文件，到最后我下定决心改这个时，很轻松就搞定了。而且付出了很小的代价（两次死机，恩，很小的代价。）[m
Section "Screen"
Identifier "Default Screen"//[1;31m这行[m
Device "NVIDIA Corporation NVCrush11 [GeForce2 MX Integrated Graphics]"
Monitor "Philips 105S" //[1;31m到这行[m往上面找，找到相关的，注意大小写
DefaultDepth 16 //一般这里是24，我的比较老。。。
SubSection "Display"
Depth 1
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "1024x768" "800x600" "640x480"
EndSubSection
EndSection
[1;31m剩下的就不要改了！自动检测的会很好的。如果改，请确认你知道你在做什么。[m
Section "ServerLayout"
Identifier "Default Layout"
Screen "Default Screen"
InputDevice "Generic Keyboard"
InputDevice "Configured Mouse"
EndSection
Section "DRI"
Mode 0666
EndSection