G550 dual-head problems

[Benjamin Thelen]

Hi List,

I really would appreciate your help, because I ran out of ideas!

Basically dual-head works, but only with a little workaround:
If I start X, with the xorg.conf I attached, the second monitor simply 
isn't activated, although the desktop is expanded to the second monitor! 
I first have to comment out "Screen 0" and "Screen 1" within both 
'Section "Device"' for Card0 and Card1. If I then start X, the second 
monitor is activated in cloning mode. After "reaktivating" the "Screen 
0" and "Screen 1" entries, which I just have commented out, dual-head works.

Do you have an idea what is wrong in my xorg.conf? I "played" around for 
example with commenting out "Xinerama", removing the second 'Section 
"Device"' for Card1, but without success.


Kind Regards,
Benjamin
-------------- next part --------------
Section "ServerLayout"
	Identifier     "Dual-Monitor"
	Screen      0  "Screen0"
	Screen      1  "Screen1" RightOf "Screen0"
	InputDevice    "Mouse0" "CorePointer"
	InputDevice    "Keyboard0" "CoreKeyboard"
#	Option "Clone" "off"
EndSection


Section "ServerFlags"
	Option "Xinerama" "true"
EndSection


Section "Files"
	RgbPath      "/usr/X11R6/lib/X11/rgb"
	ModulePath   "/usr/X11R6/lib/modules"
	FontPath     "/usr/X11R6/lib/X11/fonts/misc/"
	FontPath     "/usr/X11R6/lib/X11/fonts/TTF/"
	#FontPath     "/usr/X11R6/lib/X11/fonts/Type1/"
	#FontPath     "/usr/X11R6/lib/X11/fonts/CID/"
	FontPath     "/usr/X11R6/lib/X11/fonts/75dpi/"
	FontPath     "/usr/X11R6/lib/X11/fonts/100dpi/"
	#FontPath    "/usr/X11R6/lib/X11/fonts/Speedo/"
	FontPath    "/usr/X11R6/lib/X11/fonts/URW/"
	FontPath    "/usr/local/share/fonts/"
	FontPath    "/usr/X11R6/lib/X11/fonts/"
	#FontPath    "/usr/local/share/fonts/override/"
	FontPath    "/usr/X11R6/lib/X11/fonts/bitstream-vera/"
	#FontPath    "/usr/X11R6/lib/X11/fonts/cyrillic/"
	#FontPath    "/usr/X11R6/lib/X11/fonts/latin2/"
	#FontPath    "/usr/X11R6/lib/X11/fonts/local/"
	#FontPath    "/usr/X11R6/lib/X11/fonts/PEX/"
	FontPath    "/usr/X11R6/lib/X11/fonts/TrueType/"
	#FontPath    "/usr/X11R6/lib/X11/fonts/latin2/100dpi/"
	#FontPath    "/usr/X11R6/lib/X11/fonts/latin2/75dpi/"
EndSection

Section "Module"
	Load  "extmod"
	Load  "glx"
	#Load  "dri"
	Load  "dbe"
	Load  "record"
	Load  "xtrap"
	Load  "type1"
	Load  "freetype"
	#Load  "speedo"
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
	Option "XkbModel" "pc105"
        Option "XkbLayout" "de"
        Option "XkbVariant" "nodeadkeys"
EndSection

Section "InputDevice"
	Identifier  "Mouse0"
	Driver      "mouse"
	Option	    "Protocol" "auto"
	Option	    "Device" "/dev/sysmouse"
	Option      "ZAxisMapping" "4 5"
EndSection


Section "Monitor"
	##DisplaySize	  400   300	# mm
	#Identifier   "Monitor0"
	#VendorName   "IVM"
	#ModelName    "2140"
	Option	      "DPMS"
	Identifier    "Monitor0"
        VendorName    "IIyama"
        ModelName     "A201HT"
	HorizSync     30-130
	VertRefresh   50-160
EndSection

Section "Monitor"
        Identifier    "Monitor1"
        VendorName    "IIyama"
        ModelName     "A201HT"
        HorizSync     30-130
        VertRefresh   50-160
        Option        "DPMS"
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"      	30-130# [<str>]
        #Option     "Monitor2VRefresh"   	50-160# [<str>]
        #Option     "Monitor2Position"   	right# [<str>]
        #Option     "MetaModes"          	# [<str>]
	Identifier  "Card0"
	Driver      "mga"
	VendorName  "Matrox Graphics, Inc."
	BoardName   "MGA G550 AGP"
	BusID       "PCI:1:0:0"
	Screen	    0
EndSection

Section "Device"
	Identifier  "Card1"
        Driver      "mga"
        VendorName  "Matrox Graphics, Inc."
        BoardName   "MGA G550 AGP"
        BusID       "PCI:1:0:0"
	Screen	    1
EndSection


Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
	DefaultDepth 16
	Subsection "Display"
        	Depth       8
        	Modes       "640x480" "800x600" "1024x768" "1280x1024"
        	ViewPort    0 0
    	EndSubsection
    	Subsection "Display"
        	Depth       16
        	Modes       "1280x1024" "1024x768" "800x600" "640x480"
        	ViewPort    0 0
    	EndSubsection
    	Subsection "Display"
        	Depth       24
        	Modes       "640x480" "800x600" "1024x768" "1280x1024"
        	ViewPort    0 0
    	EndSubsection
EndSection

Section "Screen"
        Identifier "Screen1"
        Device     "Card1"
        Monitor    "Monitor1"
        DefaultDepth 16
        Subsection "Display"
                Depth       8
                Modes       "640x480" "800x600" "1024x768" "1280x1024"
                ViewPort    0 0
        EndSubsection
        Subsection "Display"
                Depth       16
                Modes       "1280x1024" "1024x768" "800x600" "640x480"
                ViewPort    0 0
        EndSubsection
        Subsection "Display"
                Depth       24
                Modes       "640x480" "800x600" "1024x768" "1280x1024"
                ViewPort    0 0
        EndSubsection
EndSection