Triple / quadruple head config

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Hi list,

Triple / quadruple head config with one nvidia 980XGL (sorry) and one
matrox G450... anyone? :) I know nvidia is closed, but as nouveau is not
ready yet, I need to stick with nvidia, for now :) I want to be able to
use OpenGL apps on the displays connected to the nvidia card, I want to
have _ONE_ big screen spanning all displays, but if I maximize an app,
it should just maximize to the borders of ONE screen... it is a mixture
between twinview and xinerama (I think). My config trials up to now
were... hum... more or less strange. The best I could get was this:

The two displays connected to the nvidia are "together", applications
are maximized across both displays, the one (later there will be a
second one) connected to the matrox has its own panel (I use gnome), I
can move the mouse between those three displays but I can not drag apps
from one nvidia display to a matrox display.
So anyone thoughts on this? The xorg.conf is attached. It is more or
less a rough config, no language settings or other stuff, just the
display / graphics stuff is of concern now.

As a side note, edid / ddc seems to be broken with the matrox or the
display connected to it, not that important either, I will check that
when all works as I want it to.

regards
Michael Schmitt

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

Section "Files"
	RgbPath      "/etc/X11/rgb"
	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"
EndSection

Section "Module"
	Load  "extmod"
	Load  "dbe"
	Load  "dri"
	Load  "glx"
	Load  "record"
	Load  "xtrap"
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    "L1710S"
	
EndSection

Section "Device"
	Identifier  "Card0"
	Driver      "nvidia"
	VendorName  "nVidia Corporation"
	BoardName   "NV28GL [Quadro4 980 XGL]"
	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"
        ### [arg]: arg optional
        #Option     "SWcursor"           	# [<bool>]
        #Option     "HWcursor"           	# [<bool>]
        #Option     "PciRetry"           	# [<bool>]
        #Option     "SyncOnGreen"        	# [<bool>]
        #Option     "NoAccel"            	# [<bool>]
        #Option     "ShowCache"          	# [<bool>]
        #Option     "Overlay"            	# [<str>]
        #Option     "MGASDRAM"           	# [<bool>]
        #Option     "ShadowFB"           	# [<bool>]
        #Option     "UseFBDev"           	# [<bool>]
        #Option     "ColorKey"           	# <i>
        #Option     "SetMclk"            	# <freq>
        #Option     "OverclockMem"       	# [<bool>]
        #Option     "VideoKey"           	# <i>
        #Option     "Rotate"             	# [<str>]
        #Option     "TexturedVideo"      	# [<bool>]
        #Option     "Crtc2Half"          	# [<bool>]
        #Option     "Crtc2Ram"           	# <i>
        #Option     "Int10"              	# [<bool>]
        #Option     "AGPMode"            	# <i>
        #Option     "AGPSize"            	# <i>
        #Option     "DigitalScreen1"     	# [<bool>]
        #Option     "DigitalScreen2"     	# [<bool>]
        #Option     "TV"                 	# [<bool>]
        #Option     "TVStandard"         	# [<str>]
        #Option     "CableType"          	# [<str>]
        #Option     "NoHal"              	# [<bool>]
        #Option     "SwappedHead"        	# [<bool>]
        #Option     "DRI"                	# [<bool>]
        #Option     "MergedFB"           	# [<bool>]
        #Option     "Monitor2HSync"      	# [<str>]
        #Option     "Monitor2VRefresh"   	# [<str>]
        #Option     "Monitor2Position"   	# [<str>]
        #Option     "MetaModes"          	# [<str>]
        #Option     "OldDmaInit"         	# [<bool>]
        #Option     "ForcePciDma"        	# [<bool>]
        #Option     "AccelMethod"        	# [<str>]
	Identifier  "Card1"
	Driver      "mga"
	VendorName  "Matrox Graphics, Inc."
	BoardName   "MGA G400/G450"
	BusID       "PCI:3:0:0"
	Option "NoDDC"
	Option "DDCMode" "off"
	Option "IgnoreEDID" "on"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
	Option         "TwinView" "1"
	SubSection "Display"
		Viewport   0 0
		Depth     1
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     4
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     8
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     15
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     16
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection

EndSection

Section "Screen"
	Identifier "Screen1"
	Device     "Card1"
	Monitor    "Monitor1"
	Option	   "metamodes" "1280x1024_60"
	SubSection "Display"
		Viewport   0 0
		Depth     1
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     4
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     8
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     15
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     16
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection
EndSection

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