質問:
BIOSでOptimusを有効にしてOS検出をオンにすると、2つの外部DVI接続モニター(ドッキング-Nvidiaカード)とラップトップLCD(Intelカード)が動作します。ドッキングのVGA(Intelカード)も動作しましたが、ラップトップLCDのクローンとしては使用できませんでした。
Xineramaを有効にしたxorgの設定は次のとおりです。
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "ScreenNvidia0" 0 0
Screen 1 "ScreenNvidia1" RightOf "ScreenNvidia0"
Screen 2 "ScreenIntel" RightOf "ScreenNvidia1"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "true"
EndSection
Section "Files"
EndSection
Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "MonitorNvidia0"
VendorName "Unknown"
ModelName "Samsung SyncMaster"
HorizSync 30.0 - 81.0
VertRefresh 50.0 - 63.0
Option "DPMS"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "MonitorNvidia1"
VendorName "Unknown"
ModelName "Samsung SyncMaster"
HorizSync 30.0 - 81.0
VertRefresh 50.0 - 63.0
Option "DPMS"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "MonitorIntel"
VendorName "Unknown"
ModelName "Unknown"
HorizSync 30.0 - 81.0
VertRefresh 50.0 - 63.0
Option "DPMS"
EndSection
Section "Device"
Identifier "DeviceNvidia0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BusID "1:0:0"
Option "RegistryDwords" "EnableBrightnessControl=1"
Screen 0
EndSection
Section "Device"
Identifier "DeviceNvidia1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BusID "1:0:0"
Option "RegistryDwords" "EnableBrightnessControl=1"
Screen 1
EndSection
Section "Device"
Identifier "DeviceIntel"
Driver "intel"
BusID "0:2:0"
Option "monitor-VGA1" "VGA1"
Option "monitor-TV" "TV"
Option "monitor-LVCD1" "LVCD1"
Option "Clone" "off"
EndSection
Section "Monitor"
Identifier "VGA1"
EndSection
Section "Monitor"
Identifier "LVCD1"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "TV"
Option "Ignore" "false"
EndSection
Section "Screen"
Identifier "ScreenNvidia0"
Device "DeviceNvidia0"
Monitor "MonitorNvidia0"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1920x1200"
EndSubSection
EndSection
Section "Screen"
Identifier "ScreenNvidia1"
Device "DeviceNvidia1"
Monitor "MonitorNvidia1"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1920x1200"
EndSubSection
EndSection
Section "Screen"
Identifier "ScreenIntel"
Device "DeviceIntel"
Monitor "MonitorIntel"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1900x1200"
EndSubSection
SubSection "Display"
Depth 24
Modes "1920x1200"
EndSubSection
EndSection
「DeviceIntel」セクションは、Intelカードで複数のモニターを取得する最後の試みです。
これが私の「lspci」の抜粋です。
$ lspci |grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: nVidia Corporation Device 1057 (rev a1)
NVidiaカードを使用しない場合は、ノートブックの単一のVGAポートのみを使用できます。ドッキングステーションの両方に接続しても、NVidiaカードを使用しない限り、dviポートとディスプレイポートは使用できません。