노트북을 사용중입니다. LW40-express 이구요, 비디오카드는 ATI mobility radeon x600 이네요
우분투 feisty에 ati 최신 드라이버 support.amd.com 가서 받아서 데비안 패키지 생성해서 설치했구요,
문제는 제가 노트북에 모니터를 연결해서 확장 데스크탑으로 사용하려 하는데 이게 쉽지 않네요
웃기는게 지금 제가 한 설정을 커널을 single로 띄워서(recovery mode로..) startx를 실행하면 제대로 확장으로 잡히는데 root가 아닌 다른 계정으로 startx를 하면 복제 화면(노트북과 모니터가 똑같은 화면..)이 뜨네요.. 이거 어떻게 해결 못하나요 ? 참고로 recovery mode에서 노틸러스 등등 띄우는게 모니터에서 뜨거든요... 도와주세요 제발 ㅠㅠ
노트북은 1280x768, 모니터는 1280x1024 입니다. 둘다 같은 해상도를 꼭 써야만 한다면 1280x768로 둘다 써도 상관 없습니다.

제 xorg.conf 한번 올려봅니다

Section "ServerFlags"
Option "Xinerama"
EndSection
Section "ServerLayout"
Identifier "Default Layout"
Screen 0 "aticonfig-Screen[0]" 0 0
InputDevice "Generic Keyboard"
InputDevice "Configured Mouse"
InputDevice "stylus" "SendCoreEvents"
InputDevice "cursor" "SendCoreEvents"
InputDevice "eraser" "SendCoreEvents"
InputDevice "Synaptics Touchpad"
Option "Xinerama" "off"
Option "Clone" "off"
EndSection

Section "Files"
# path to defoma fonts
FontPath "/usr/share/fonts/X11/misc"
FontPath "/usr/share/fonts/X11/cyrillic"
FontPath "/usr/share/fonts/X11/100dpi/:unscaled"
FontPath "/usr/share/fonts/X11/75dpi/:unscaled"
FontPath "/usr/share/fonts/X11/Type1"
FontPath "/usr/share/fonts/X11/100dpi"
FontPath "/usr/share/fonts/X11/75dpi"
FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
Load "i2c"
Load "bitmap"
Load "ddc"
Load "dri"
Load "extmod"
Load "freetype"
Load "glx"
Load "int10"
Load "vbe"
EndSection

Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/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 "InputDevice"
Identifier "stylus"
Driver "wacom"
Option "Device" "/dev/input/wacom"
Option "Type" "stylus"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection

Section "InputDevice"
Identifier "eraser"
Driver "wacom"
Option "Device" "/dev/input/wacom"
Option "Type" "eraser"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection

Section "InputDevice"
Identifier "cursor"
Driver "wacom"
Option "Device" "/dev/input/wacom"
Option "Type" "cursor"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection

Section "Monitor"
Identifier "aticonfig-Monitor[0]"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection

Section "Device"
Identifier "aticonfig-Device[0]"
Driver "fglrx"
Option "VideoOverlay" "on"
Option "OpenGLOverlay" "off"
Option "MonitorLayout" "LVDS, AUTO"
Option "IgnoreEDID" "off"
Option "ScreenOverlap" "0"
Option "CenterMode" "off"
Option "Stereo" "off"
Option "StereoSyncEnable" "1"
Option "OverlayOnCRTC1" "on"
Option "OverlayOnCRTC2" "on"
Option "DesktopSetup" "horizontal"
Option "Mode2" "1280x1024"
EndSection

Section "Screen"
Identifier "aticonfig-Screen[0]"
Device "aticonfig-Device[0]"
Monitor "aticonfig-Monitor[0]"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x768"
EndSubSection
EndSection

Section "DRI"
Mode 0666
EndSection

Section "Extensions"
Option "XVideo" "Enable"
Option "Composite" "false"
EndSection