modified xorg.conf file

This is old post and the new post is 2008/12/17 - [computer/linux] - xorg.conf with an external monitor
.

Today, I installed the ATI Catalyst 8.1 Proprietary Linux x86 display driver by using http://wiki.cchtml.com/index.php/Ubuntu_Edgy_Installation_Guide.

However, it still suffers from the wrong resolution on the external TFT display if the mode of the LCD(LVDS) is different to the mode of the TFT(usually CRT1, but AUTO is a better choice).

I decied to keep using the open source driver (radeon) and just modified xorg.conf file slightly.

Section "Files"
#    FontPath    "/usr/share/fonts/X11/cyrillic"
    FontPath    "/usr/share/fonts/X11/75dpi/:unscaled"
    FontPath    "/usr/share/fonts/X11/100dpi/:unscaled"
    FontPath    "/usr/share/fonts/X11/75dpi"
    FontPath    "/usr/share/fonts/X11/100dpi"
    FontPath    "/usr/share/fonts/X11/Type1"
     FontPath    "/usr/share/fonts/X11/misc"

    # path to defoma fonts
    FontPath    "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
    Load    "bitmap"
    Load    "dbe"
    Load    "ddc"
    Load    "dri"
    Load    "extmod"
    Load    "freetype"
    Load    "glx"
    Load    "int10"
    Load    "type1"
    Load    "vbe"
EndSection

Section "InputDevice"
    Identifier    "Generic Keyboard"
    Driver        "kbd"
    Option        "CoreKeyboard"
    Option        "XkbRules"    "xorg"
    Option        "XkbModel"    "pc105"
    Option        "XkbLayout"    "kr"
#    Option        "XkbOptions"    "lv3:ralt_switch"
EndSection

Section "InputDevice"
    Identifier    "Configured Mouse"
    Driver        "mouse"
    Option        "CorePointer"
    Option        "Device"        "/dev/input/mice"
    Option        "Protocol"        "ExplorerPS/2"
    Option        "ZAxisMapping"        "4 5"
    Option        "Emulate3Buttons"    "true"
EndSection

Section "InputDevice"
    Identifier    "Synaptics Touchpad"
    Driver        "synaptics"
    Option        "SendCoreEvents"    "true"
    Option        "Device"        "/dev/psaux"
    Option        "Protocol"        "auto-dev"
    Option        "HorizScrollDelta"    "0"
EndSection

Section "Device"
    Identifier    "ATI Technologies, Inc. Radeon Mobility X700 (RV410 PCIE)"
    Driver        "radeon"
    Screen        0
    BusID        "PCI:1:0:0"
    Option        "MonitorLayout"        "LVDS,AUTO"
 EndSection

Section "Device"
    Identifier    "ATI Technologies, Inc. Radeon Mobility X700 (Dell)"
    Driver        "radeon"
    Screen        1
    BusID        "PCI:1:0:0"
EndSection

Section "Monitor"
    Identifier    "Laptop LCD"
    HorizSync       28-64
    VertRefresh    43-60
    Gamma           1.0
    Option           "DPMS"
EndSection

Section "Monitor"
    Identifier    "Dell E177FPf"
    HorizSync       30-81
    VertRefresh    56-76
    Gamma           0.9
    Option        "   DPMS"
EndSection


Section "Screen"
    Identifier    "Default Screen"
    Device        "ATI Technologies, Inc. Radeon Mobility X700 (RV410 PCIE)"
    Monitor        "Laptop LCD"
    DefaultDepth    24
    SubSection "Display"
        Depth        24
        Modes        "1280x800" "1024x768" "800x600"
    EndSubSection
EndSection

Section "Screen"
    Identifier    "External Screen"
    Device        "ATI Technologies, Inc. Radeon Mobility X700 (Dell)"
    Monitor        "Dell E177FPf"
    DefaultDepth    24
    SubSection "Display"
        Depth    24
        Modes        "1280x1024"  "1024x768" "800x600"
    EndSubSection
EndSection

Section "ServerLayout"
    Option        "AIGLX"             "true"
    Option        "Xinerama"        "true"
    Option        "BlankTime"      "10"      # the unit is mins.
    Option        "Standby"           "20"
    Option        "SuspendTime"  "30"
    Option        "OffTime"          "40"
    Identifier    "Default Layout"
    Screen    0    "Default Screen" 0 0
    Screen    1    "External Screen" RightOf "Default Screen"
    InputDevice    "Generic Keyboard"
    InputDevice    "Configured Mouse"
    InputDevice    "Synaptics Touchpad"
EndSection

Section "Extensions"
    Option    "Composite" "Enable"
EndSection

Section "DRI"
    Mode    0666
EndSection

invalid-file

a little modified xorg.conf file