在进入图形界面后，按ctrl+altf2，切到另一个用户进行操作，之后再按ctrl+alt+f7切回来的时候，显示会有问题，好像不能显示换，我的显卡是ati的，它自认成s3的显卡，我用不用改它的设置？另外这样的问题大家是如何处理的？

Section "Module"

    Load        "dbe"   # Double buffer extension

    SubSection  "extmod"
      Option    "omit xfree86-dga"   # don't initialise the DGA extension
    EndSubSection

    Load        "type1"
    Load        "freetype"


EndSection


Section "Files"


    RgbPath "/usr/X11R6/lib/X11/rgb"


    FontPath   "/usr/X11R6/lib/X11/fonts/misc/"
    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/Speedo/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/"


EndSection


Section "ServerFlags"






EndSection


Section "InputDevice"

    Identifier "Keyboard1"
    Driver "Keyboard"


    Option "AutoRepeat" "500 30"




    Option "XkbRules" "xfree86"
    Option "XkbModel" "pc101"
    Option "XkbLayout" "us"

EndSection



Section "InputDevice"


    Identifier "Mouse1"
    Driver "mouse"
    Option "Protocol"    "PS/2"
    Option "Device"      "/dev/psaux"



    Option "Emulate3Buttons"

EndSection


Section "Monitor"

    Identifier  "My Monitor"

    HorizSync   30 - 64


    VertRefresh 50-90

EndSection



Section "Device"
    Identifier "Standard VGA"
    VendorName "Unknown"
    BoardName "Unknown"


    Driver     "vesa"

EndSection


Section "Device"
    Identifier  "Cardex Trio64Pro"
    Driver      "vesa"
# unsupported card
    #VideoRam    32768
EndSection


Section "Screen"
    Identifier  "Screen 1"
    Device      "Cardex Trio64Pro"
    Monitor     "My Monitor"
    DefaultDepth 16

    Subsection "Display"
        Depth       8
        Modes       "800x600" "1024x768" "1280x1024"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes       "800x600"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes       "800x600"
        ViewPort    0 0
    EndSubsection
EndSection

Section "ServerLayout"

    Identifier  "Simple Layout"


    Screen "Screen 1"


    InputDevice "Mouse1" "CorePointer"
    InputDevice "Keyboard1" "CoreKeyboard"

EndSection