Linux でもデュアルディスプレイを使いたいですよね
そんな時は、xrandr を使ってデュアルディスプレイを実現できる場合があります
今回は、ATI のビデオボードの場合
$ xrandr
を実行すると
Screen 0: minimum 320 x 200, current 2560 x 1024, maximum 2560 x 1200 VGA-0 connected 1280x1024+1280+0 (normal left inverted right x axis y axis) 340mm x 270mm 1280x1024 75.0*+ 70.0 60.0 1024x768 75.0 70.1 60.0 800x600 72.2 75.0 60.3 640x480 75.0 72.8 59.9 720x400 70.1 DVI-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 340mm x 270mm 1280x1024 75.0*+ 70.0 60.0 1024x768 75.0 70.1 60.0 800x600 72.2 75.0 60.3 640x480 75.0 72.8 59.9 720x400 70.1
のように表示されます。
下が /etc/X11/xorg.conf です。詳しく書きませんが、ヒントになれば幸いです。
# Xorg configuration created by pyxf86config Section "ServerLayout" Identifier "Default Layout" Screen 0 "Screen0" 0 0 InputDevice "Keyboard0" "CoreKeyboard" EndSection Section "InputDevice" # keyboard added by rhpxl Identifier "Keyboard0" Driver "kbd" Option "XkbModel" "jp106" Option "XkbLayout" "jp" EndSection Section "Device" Identifier "Videocard0" Driver "radeon" Option "monitor-VGA-0" "Monitor0" Option "monitor-DVI-0" "Monitor1" EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection Section "Monitor" Identifier "Monitor0" ModelName "IBM L171" DisplaySize 340 270 HorizSync 30.0-83.0 VertRefresh 55.0-75.0 Option "dpms" EndSection Section "Monitor" Identifier "Monitor1" ModelName "IBM L171" DisplaySize 340 270 HorizSync 30.0-83.0 VertRefresh 55.0-75.0 Option "dpms" Option "LeftOf" "Monitor0" EndSection