Matrox G450 Dual Head

Tue Jan 3 17:38:49 UTC 2006

I also have a G450 and are running in dualheadmode and it works fine. 
The thing you ar looking for is Xinerama in section Server Flags and the
placement of screens in the serverLayout-section:

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen      0   "Default Screen" RightOf "Screen1" 
	Screen		"Screen1" 0 0
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
EndSection

Section "ServerFlags"
	Option	    "Xinerama"
EndSection

You can see my complete configuration bellow.

Good luck,
/Magnus

# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool,
using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual
page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades
*only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically
updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"Section "ServerLayout"
	Identifier	"Default Layout"
	Screen      0   "Default Screen" RightOf "Screen1" 
	Screen		"Screen1" 0 0
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
EndSection
Section "ServerFlags"
	Option	    "Xinerama"
EndSection

	FontPath	"/usr/share/X11/fonts/misc"
	FontPath	"/usr/share/X11/fonts/cyrillic"
	FontPath	"/usr/share/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/Type1"
	FontPath	"/usr/share/X11/fonts/CID"
	FontPath	"/usr/share/X11/fonts/100dpi"
	FontPath	"/usr/share/X11/fonts/75dpi"
        # paths to defoma fonts
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/CID"
EndSection

Section "Module"
	Load	"GLcore"
	Load	"i2c"
	Load	"bitmap"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"type1"
	Load	"vbe"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc105"
	Option		"XkbLayout"	"se"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
	Option		"Emulate3Buttons"	"true"
	Option		"ZAxisMapping"		"4 5"
EndSection

Section "Device"
	Identifier	"Matrox Graphics, Inc. MGA G400 AGP"
	Driver		"mga"
	Option	        "AGPMode" "4"
	Option	        "hw cursor" "on"
	BusID		"PCI:1:0:0"
	Screen      0
EndSection

Section "Device"
	Identifier	"Matrox Graphics, Inc. MGA G400 AGP second head"
	Driver		"mga"
	Option	        "AGPMode" "4"
	Option	        "hw cursor" "on"
	BusID		"PCI:1:0:0"
	Screen      1
EndSection

Section "Monitor"
	Identifier	"CM772"
	Option		"DPMS"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"Matrox Graphics, Inc. MGA G400 AGP"
	Monitor		"CM772"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1600x1200" "1280x1024" "1152x864" "1024x768" "832x624"
"800x600" "720x400" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1600x1200" "1280x1024" "1152x864" "1024x768" "832x624"
"800x600" "720x400" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1600x1200" "1280x1024" "1152x864" "1024x768" "832x624"
"800x600" "720x400" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1600x1200" "1280x1024" "1152x864" "1024x768" "832x624"
"800x600" "720x400" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1600x1200" "1280x1024" "1152x864" "1024x768" "832x624"
"800x600" "720x400" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1600x1200" "1280x1024" "1152x864" "1024x768" "832x624"
"800x600" "720x400" "640x480"
	EndSubSection
EndSection

Section "Monitor"
	Identifier   "Proview"
	VendorName   "Unknown"
	ModelName    "Unknown"
	HorizSync    30.0 - 64.0
	VertRefresh  50.0 - 100.0
	Option	    "dpms"
EndSection

Section "Screen"
	Identifier "Screen1"
	Device     "Matrox Graphics, Inc. MGA G400 AGP second head"
	Monitor    "Proview"
	DefaultDepth     24
	SubSection "Display"
		Depth     24
		Modes    "1024x768"
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen      0   "Default Screen" RightOf "Screen1" 
	Screen		"Screen1" 0 0
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
EndSection
Section "ServerFlags"
	Option	    "Xinerama"
EndSection

Section "DRI"
	Mode	0666
EndSection

On Tue, 2006-01-03 at 00:38 -0500, 'Forum Post wrote:
> Hello Tom, and Dana.  I'm hoping you guys could help me out.  Every time
> I adjust my xorg.conf I get a xserver can't start.  after sudo dpkg
> xserver I have two monitors with clone mode, and I'm trying to get
> expanded mode.  I've got a compaq mv940 monitor with H: 31-85 KHz, and
> V: 50-120 Hz  and a CTL 7sln monitor with H: 30-70KHz, V: 50-160Hz  
> 
> this is my present xorg.conf : 
> 
> 
> 
> can anyone post what I need to change?  
> 
> Section "Module"
> 
> 	Load	"GLcore"
> 
> 	Load	"bitmap"
> 
> 	Load	"ddc"
> 
> 	Load	"dri"
> 
> 	Load	"extmod"
> 
> 	Load	"freetype"
> 
> 	Load	"glx"
> 
> 	Load	"int10"
> 
> 	Load	"type1"
> 
> 	Load	"vbe"
> 
> EndSection
> 
> 
> 
> Section "InputDevice"
> 
> 	Identifier	"Generic Keyboard"
> 
> 	Driver		"kbd"
> 
> 	Option		"CoreKeyboard"
> 
> 	Option		"XkbRules"	"xorg"
> 
> 	Option		"XkbModel"	"pc104"
> 
> 	Option		"XkbLayout"	"us"
> 
> EndSection
> 
> 
> 
> Section "InputDevice"
> 
> 	Identifier	"Configured Mouse"
> 
> 	Driver		"mouse"
> 
> 	Option		"CorePointer"
> 
> 	Option		"Device"		"/dev/input/mice"
> 
> 	Option		"Protocol"		"ImPS/2"
> 
> 	Option		"Emulate3Buttons"	"true"
> 
> 	Option		"ZAxisMapping"		"4 5"
> 
> EndSection
> 
> 
> 
> Section "Device"
> 
> 	Identifier	"Matrox Graphics, Inc. MGA G400 AGP"
> 
> 	Driver		"mga"
> 
> 	BusID		"PCI:1:0:0"
> 
> EndSection
> 
> 
> 
> Section "Monitor"
> 
> 	Identifier	"COMPAQ MV940"
> 
> 	Option		"DPMS"
> 
> EndSection
> 
> 
> 
> Section "Screen"
> 
> 	Identifier	"Default Screen"
> 
> 	Device		"Matrox Graphics, Inc. MGA G400 AGP"
> 
> 	Monitor		"COMPAQ MV940"
> 
> 	DefaultDepth	24
> 
> 	SubSection "Display"
> 
> 		Depth		1
> 
> 		Modes		"1600x1200" "1280x1024" "1024x768" "800x600" "720x400"
> "640x480"
> 
> 	EndSubSection
> 
> 	SubSection "Display"
> 
> 		Depth		4
> 
> 		Modes		"1600x1200" "1280x1024" "1024x768" "800x600" "720x400"
> "640x480"
> 
> 	EndSubSection
> 
> 	SubSection "Display"
> 
> 		Depth		8
> 
> 		Modes		"1600x1200" "1280x1024" "1024x768" "800x600" "720x400"
> "640x480"
> 
> 	EndSubSection
> 
> 	SubSection "Display"
> 
> 		Depth		15
> 
> 		Modes		"1600x1200" "1280x1024" "1024x768" "800x600" "720x400"
> "640x480"
> 
> 	EndSubSection
> 
> 	SubSection "Display"
> 
> 		Depth		16
> 
> 		Modes		"1600x1200" "1280x1024" "1024x768" "800x600" "720x400"
> "640x480"
> 
> 	EndSubSection
> 
> 	SubSection "Display"
> 
> 		Depth		24
> 
> 		Modes		"1600x1200" "1280x1024" "1024x768" "800x600" "720x400"
> "640x480"
> 
> 	EndSubSection
> 
> EndSection
> 
> 
> 
> Section "ServerLayout"
> 
> 	Identifier	"Default Layout"
> 
> 	Screen		"Default Screen"
> 
> 	InputDevice	"Generic Keyboard"
> 
> 	InputDevice	"Configured Mouse"
> 
> EndSection
> 
> 
> 
> Section "DRI"
> 
> 	Mode	0666
> 
> EndSection
> 
> 
> 
> I'd appreciate any help a LOT!!!  
> 
> 
> 
> 5.10 Breezy, AMD 1600, 512MB, NEC DVD Burner, 60GB hard drive, and
> 160GB hard drive.
> 
> 
> -- 
> GTroy

-- 
Magnus Runesson <mr-ubuntu at linuxalert.org>
Linuxalert