ATI radeong 9800 ProのADC出力とDVI出力それぞれにディスプレイをつないた。xorgの設定が微妙に難しくてハマった。以下にxorg.confを全文転載しておく。
# /etc/X11/xorg.conf (xorg X Window System server configuration file) # # This file was generated by dexconf, the Debian X Configuration tool, using # values from the debconf database. # # Edit this file with caution, and see the /etc/X11/xorg.conf manual page. # (Type "man /etc/X11/xorg.conf" at the shell prompt.) # # This file is automatically updated on xserver-xorg package upgrades *only* # if it has not been modified since the last upgrade of the xserver-xorg # package. # # If you have edited this file but would like it to be automatically updated # again, run the following command: # sudo dpkg-reconfigure -phigh xserver-xorg Section "Files" FontPath "/usr/share/fonts/X11/misc" FontPath "/usr/X11R6/lib/X11/fonts/misc" FontPath "/usr/share/fonts/X11/cyrillic" FontPath "/usr/X11R6/lib/X11/fonts/cyrillic" FontPath "/usr/share/fonts/X11/100dpi/:unscaled" FontPath "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled" FontPath "/usr/share/fonts/X11/75dpi/:unscaled" FontPath "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled" FontPath "/usr/share/fonts/X11/Type1" FontPath "/usr/X11R6/lib/X11/fonts/Type1" FontPath "/usr/share/fonts/X11/100dpi" FontPath "/usr/X11R6/lib/X11/fonts/100dpi" FontPath "/usr/share/fonts/X11/75dpi" FontPath "/usr/X11R6/lib/X11/fonts/75dpi" # path to defoma fonts 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 "type1" Load "vbe" EndSection Section "InputDevice" Identifier "Generic Keyboard" Driver "kbd" Option "CoreKeyboard" Option "XkbRules" "xorg" Option "XkbModel" "pc104" Option "XkbLayout" "us" EndSection Section "InputDevice" Identifier "Configured Mouse" Driver "mouse" Option "CorePointer" Option "Device" "/dev/input/mice" Option "Protocol" "ExplorerPS/2" Option "Emulate3Buttons" "true" EndSection Section "Device" Identifier "Videocard0" Driver "ati" # Option "UseFBDev" "true" Option "VideoOverlay" "on" Option "CRT2Position" "RightOf" Option "CRT2HSync" "28-64" Option "CRT2VRefresh" "43-60" # Option "MetaModes" "1600x1200-1280x1024" # Option "MetaModes" "1280x1024-1024x768" Option "MetaModes" "1280x1024-1280x1024" Option "MergedFB" "true" Screen 0 EndSection Section "Monitor" Identifier "Monitor0" Option "DPMS" HorizSync 28-64 VertRefresh 43-60 Option "dpms" EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" Monitor "Monitor0" DefaultDepth 24 SubSection "Display" Depth 1 Modes "1280x1024" "1024x768" "800x600" "640x480" EndSubSection SubSection "Display" Depth 4 Modes "1280x1024" "1024x768" "800x600" "640x480" EndSubSection SubSection "Display" Depth 8 Modes "1280x1024" "1024x768" "800x600" "640x480" EndSubSection SubSection "Display" Depth 15 Modes "1280x1024" "1024x768" "800x600" "640x480" EndSubSection SubSection "Display" Depth 16 Modes "1280x1024" "1024x768" "800x600" "640x480" EndSubSection SubSection "Display" Depth 24 Modes "1280x1024" "1024x768" "800x600" "640x480" EndSubSection EndSection Section "ServerLayout" Identifier "Multihead" Screen 0 "Screen0" 0 0 InputDevice "Generic Keyboard" InputDevice "Configured Mouse" Option "Xinerama" "off" Option "Clone" "off" EndSection