1. 修改/ect/X11/xorg.conf
请在相应的section添加下面带有“＃”的行，如果已经有了就不用了添加了
Section "ServerLayout"
Identifier "single head configuration"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Synaptics" "CorePointer"
Option "AIGLX" "true" #
EndSection
Section "Files"
EndSection
Section "Module"
Load "glx"
Load "dbe" #
Load "extmod" #
EndSection
Section "ServerFlags"
Option "AIGLX" "on"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us+inet"
EndSection
Section "InputDevice"
Identifier "Synaptics"
Driver "synaptics"
Option "Device" "/dev/input/mice"
Option "Protocol" "auto-dev"
Option "Emulate3Buttons" "yes"
Option "LeftEdge" "120"
Option "RightEdge" "830"
Option "TopEdge" "120"
Option "BottomEdge" "650"
Option "FingerLow" "14"
Option "FingerHigh" "15"
Option "MaxTapMove" "110"
Option "VertScrollDelta" "20"
Option "HorizScrollDelta" "20"
Option "MinSpeed" "0.3"
Option "MaxSpeed" "0.75"
EndSection
Section "Monitor"
Identifier "Monitor0"
ModelName "LCD Panel 1280x800"
HorizSync 31.5 - 50.0
VertRefresh 56.0 - 65.0
Option "dpms"
EndSection
Section "Device"
Identifier "Videocard0"
Driver "nvidia"
Option "XAANoOffscreenPixmaps" "true" #
Option "AllowGLXWithComposite" "true" #
Option "TripleBuffer" "true" #
Option "RenderAccel" "true" #
EndSection
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x800@60hz"
EndSubSection
Option "AddARGBGLXVisuals" "true" #
EndSection
Section "Extensions"
Option "Composite" "Enable"
EndSection
2. 重新启动x就应该可以了