我用的是学校的一台老式的计算机，Philip 105E显示器，Intel 815E芯片组集成显卡。
我给它装了feisty与XP双系统，但是feisty有偏移，我用xvidtune调整之后，show了一下，把modeline也写到了/etc/X11/xorg.conf中，如下所示：
Section "Monitor"
Identifier "105E"
ModeLine "800x600" 56.75 800 820 900 1056 600 603 607 633 -hsync +vsync
Option "DPMS"
EndSection
但是，开机重新启动之后，屏幕又回到了原来的偏移状态，似乎ModeLine并未起作用，我用命令：xvidtune -show了一下，发现Modeline为：
"800x600" 56.75 800 848 928 1056 600 603 607 633 -hsync +vsync
与xorg.conf中的Modeline配置不一样，这是为什么，求助？？？？？？？？？？？？？？？？！！！！！！！
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下面是xorg.conf中的一段：
Section "Device"
Identifier "Intel Corporation 82815 CGC [Chipset Graphics Controller]"
Driver "i810"
BusID "PCI:0:2:0"
EndSection
Section "Monitor"
Identifier "105E"
ModeLine "800x600" 56.75 800 820 900 1056 600 603 607 633 -hsync +vsync
Option "DPMS"
#HorizSync 30-54
#VertRefresh 50-120
EndSection
Section "Screen"
Identifier "Default Screen"
Device "Intel Corporation 82815 CGC [Chipset Graphics Controller]"
Monitor "105E"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "800x600" "640x480"
EndSubSection
EndSection
Section "ServerLayout"
Identifier "Default Layout"
Screen "Default Screen"
InputDevice "Generic Keyboard"
InputDevice "Configured Mouse"
InputDevice "stylus" "SendCoreEvents"
InputDevice "cursor" "SendCoreEvents"
InputDevice "eraser" "SendCoreEvents"
EndSection
Section "DRI"
Mode 0666
EndSection
