Linux 求助。设置分辨率？

1、X终端下显示器分辨率及刷新率设置
  刷新率和分辨率可以在/etc/X11/xorg.conf中设置

(1)对显示器行频（水平分辨率）和场频（垂直分辨率）的设置 

  在xorg.conf中有类似一段： 
  Section "Monitor" 
  Identifier "Monitor0" 
  VendorName "Monitor Vendor" 
  ModelName "206STUDIO" 
  HorizSync 30.0 - 70.0 
  VertRefresh 50.0 - 160.0 
  EndSection 
  其中HorizSync，VertRefresh分别是显示器行频（水平分辨率）和场频（垂直分辨率）的设置 

应该根据显示器的性能进行设置，他们的值决定了显示分辨率和刷新频率可能取值的范围。 

(2)对首先和可选分辨率的设置 
  在xorg.conf中有类似一段： 
  Section "Screen" 
  Identifier "Screen0" 
  Device "Videocard0" 
  Monitor "Monitor0" 
  DefaultDepth 24 
  SubSection "Display" 
  Depth 24 
  Modes "1024x768" "800x600" "640x480" "1280x1024" 
  EndSubSection 
  EndSection 
  行 ： 
  Modes "1024x768" "800x600" "640x480" 
  设置了三种可选的分辨率，排在最前面的就是首选的分辨率，也就是一般生效的分辨率。X启动时如果首选的分辨率无效，比如过高，会依次尝试后面的分辨率。

下面是具体对应的的xort.conf文件的内容

# /.../
# SaX generated X11 config file
# Created on: 2008-08-31T05:51:02+0800.
#
# Version: 7.1
# Contact: Marcus Schaefer <sax@suse.de>, 2005
# Contact: SaX-User list <https://lists.berlios.de/mailman/listinfo/sax-users>
#
# Automatically generated by [ISaX] (7.1)
# PLEASE DO NOT EDIT THIS FILE!
#

Section "Files"
FontPath "/usr/X11R6/lib/X11/fonts/misc:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/local"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/Type1"
FontPath "/usr/X11R6/lib/X11/fonts/URW"
FontPath "/usr/X11R6/lib/X11/fonts/Speedo"
FontPath "/usr/X11R6/lib/X11/fonts/PEX"
FontPath "/usr/X11R6/lib/X11/fonts/cyrillic"
FontPath "/usr/X11R6/lib/X11/fonts/latin2/misc:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/latin2/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/latin2/100dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/latin2/Type1"
FontPath "/usr/X11R6/lib/X11/fonts/latin7/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/baekmuk:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/japanese:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/kwintv"
FontPath "/usr/X11R6/lib/X11/fonts/truetype"
FontPath "/usr/X11R6/lib/X11/fonts/uni:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/CID"
FontPath "/usr/X11R6/lib/X11/fonts/ucs/misc:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/ucs/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/ucs/100dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/hellas/misc:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/hellas/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/hellas/100dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/hellas/Type1"
FontPath "/usr/X11R6/lib/X11/fonts/misc/sgi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/xtest"
FontPath "/opt/kde3/share/fonts"
InputDevices "/dev/gpmdata"
InputDevices "/dev/input/mice"
EndSection

Section "ServerFlags"
Option "AllowMouseOpenFail" "on"
EndSection

Section "Module"
Load "dbe"
Load "type1"
Load "freetype"
Load "extmod"
Load "glx"
Load "v4l"
EndSection

Section "InputDevice"
Driver "kbd"
Identifier "Keyboard[0]"
Option "Protocol" "Standard"
Option "XkbLayout" "us"
Option "XkbModel" "pc104"
Option "XkbRules" "xfree86"
EndSection

Section "InputDevice"
Driver "mouse"
Identifier "Mouse[1]"
Option "Buttons" "5"
Option "Device" "/dev/input/mice"
Option "Name" "HP Virtual Keyboard"
Option "Protocol" "explorerps/2"
Option "Vendor" "Sysp"
Option "ZAxisMapping" "4 5"
EndSection

Section "Monitor"
HorizSync 31-48
Identifier "Monitor[0]"
ModelName "1024X768@60HZ"
Option "DPMS"
VendorName "--> VESA"
VertRefresh 50-60
UseModes "Modes[0]"
EndSection

Section "Modes"
Identifier "Modes[0]"
Modeline "1024x768" 65.0 1024 1048 1184 1344 768 771 777 806 -hsync -vsync
Modeline "1024x768" 61.89 1024 1080 1184 1344 768 769 772 794
EndSection

Section "Screen"
DefaultDepth 16
SubSection "Display"
Depth 15
Modes "1024x768"
EndSubSection
SubSection "Display"
Depth 16
Modes "1024x768"
EndSubSection
SubSection "Display"
Depth 24
Modes "1024x768"
EndSubSection
SubSection "Display"
Depth 8
Modes "1024x768"
EndSubSection
Device "Device[0]"
Identifier "Screen[0]"
Monitor "Monitor[0]"
EndSection

Section "Device"
BoardName "ES1000 515E"
BusID "1:3:0"
Driver "radeon"
Identifier "Device[0]"
VendorName "ATI"
EndSection

Section "ServerLayout"
Identifier "Layout[all]"
InputDevice "Keyboard[0]" "CoreKeyboard"
InputDevice "Mouse[1]" "CorePointer"
Option "Clone" "off"
Option "Xinerama" "off"
Screen "Screen[0]"
EndSection

Section "DRI"
Group "video"
Mode 0660
EndSection

Section "Extensions"
EndSection