Working xorg.conf file

Section "ServerLayout"
	Identifier     "X.org Configured"
	Screen      0  "Screen0" 0 0
	Screen      1  "Screen1" RightOf "Screen0"
	Screen      2  "Screen2" RightOf "Screen1"
	InputDevice    "Mouse0" "CorePointer"
	InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
	ModulePath   "/usr/lib/xorg/modules"
	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"
	FontPath     "built-ins"
EndSection

Section "Module"
	Load  "glx"
	Load  "record"
	Load  "dri2"
	Load  "dbe"
	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 "Monitor"
	Identifier   "Monitor2"
	VendorName   "Monitor Vendor"
	ModelName    "Monitor Model"
EndSection

Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",
        ### <percent>: "<f>%"
        ### [arg]: arg optional
        #Option     "SWcursor"           	# [<bool>]
        #Option     "HWcursor"           	# [<bool>]
        #Option     "NoAccel"            	# [<bool>]
        #Option     "ShadowFB"           	# [<bool>]
        #Option     "VideoKey"           	# <i>
        #Option     "WrappedFB"          	# [<bool>]
        #Option     "GLXVBlank"          	# [<bool>]
        #Option     "ZaphodHeads"        	# <str>
        #Option     "PageFlip"           	# [<bool>]
	Identifier  "Card0"
	Driver      "nouveau"
	BusID       "PCI:1:0:0"
EndSection

Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",
        ### <percent>: "<f>%"
        ### [arg]: arg optional
        #Option     "ShadowFB"           	# [<bool>]
        #Option     "Rotate"             	# <str>
        #Option     "fbdev"              	# <str>
        #Option     "debug"              	# [<bool>]
	Identifier  "Card1"
	Driver      "fbdev"
	BusID       "PCI:1:0:0"
EndSection

Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",
        ### <percent>: "<f>%"
        ### [arg]: arg optional
        #Option     "ShadowFB"           	# [<bool>]
        #Option     "DefaultRefresh"     	# [<bool>]
        #Option     "ModeSetClearScreen" 	# [<bool>]
	Identifier  "Card2"
	Driver      "vesa"
	BusID       "PCI:1:0:0"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     1
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     4
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     8
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     15
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     16
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     24
	EndSubSection
EndSection

Section "Screen"
	Identifier "Screen1"
	Device     "Card1"
	Monitor    "Monitor1"
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     1
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     4
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     8
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     15
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     16
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     24
	EndSubSection
EndSection

Section "Screen"
	Identifier "Screen2"
	Device     "Card2"
	Monitor    "Monitor2"
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     1
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     4
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     8
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     15
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     16
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Modes "720x480"
		Virtual	720 480
		Depth     24
	EndSubSection
EndSection