/etc/xorg.conf配置如下：
－－－
# Xorg configuration created by system-config-display
Section "ServerLayout"
Identifier "single head configuration"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection
Section "Monitor"
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
Identifier "Monitor0"
ModelName "LCD Panel 1280x768"
### Comment all HorizSync and VertSync values to use DDC:
HorizSync 31.5 - 90.0
VertRefresh 60.0 - 60.0
Option "dpms"
EndSection
Section "Device"
Identifier "Videocard0"
Driver "i810"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x768" "1152x864" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 16
Modes "1280x768" "1152x864" "1024x768" "800x600" "640x480"
EndSubSection
EndSection
－－－
915resolution -l 显示 所有可支持分辨率 ，更改其中一个不会用到的分辨律，例如：
915915resolution 5a 1280 768
再用915resolution -l 显示时发现 5a 处的分辨率变成了 1280x768
为使915resolution在启动X运行，在etc/rc.local 中加入下面一行：
/usr/sbin/915resolution 1280 768 60
开始几次都不成功，后来在gnome图形界面调整分辨率时，将色彩深度换成上千，再重启，居然就可以了，但是心里总觉得不是最佳显示，然后再换成上百万，分辨率有又不行，反复几次，居然在百万时可以了，也不知道是什么原因！
