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I read that the newer VirtualBox supports Linux guests with dual monitors. I'm able to get two monitors to start when I start my Arch VM, but I cannot get Xorg to span to the 2nd monitor. They constantly display in clone mode. Has anyone successfully done this? If so, could you share your xorg.conf?
Edit: my xorg.conf (I tried incremental BusID as a test, but had them the same before).
Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
Screen 1 "Screen1" RightOf "Screen0"
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
ModulePath "/usr/lib/xorg/modules"
FontPath "/usr/share/fonts/misc/"
FontPath "/usr/share/fonts/TTF/"
FontPath "/usr/share/fonts/OTF/"
FontPath "/usr/share/fonts/Type1/"
FontPath "/usr/share/fonts/100dpi/"
FontPath "/usr/share/fonts/75dpi/"
EndSection
Section "Module"
Load "record"
Load "dbe"
Load "dri2"
Load "glx"
Load "extmod"
Load "dri"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5 6 7"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
EndSection
Section "Device"
Identifier "Card0"
Screen 0
Driver "vboxvideo"
BusID "PCI:0:2:0"
EndSection
Section "Device"
Identifier "Card1"
Screen 1
Driver "vboxvideo"
BusID "PCI:0:2:1"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Card1"
Monitor "Monitor1"
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
1Update: I can make this work from Xrandr, so it must be a configuration error. I made it work using xrandr --output VBOX1 --right-of VBOX0 – Kyle Smith – 2011-05-18T22:08:35.587
possible duplicate of How can I get VirtualBox to play nicely with dual monitors?
– Journeyman Geek – 2012-05-30T23:56:26.473i know this is old post, but this one did the trick for me xrandr --output VBOX1 --right-of VBOX0 thanx – benzebuth – 2012-12-12T08:26:28.520