Matrox G400 dual head monitor problem

[Dana Laude]

On Thursday 08 June 2006 16:26, Ben Edwards wrote:

> Thanks for this, and everybody elses help.  Ended up getting a G450 and
> now have both monitors working (c xorg.conf below).
>
> Have a slight problem, when I go to change resolution I get 'The X
> Server does not support the XRandR extension.  Runtime resolution
> changes to the display size are not available'
>
> Have done a bit of googeling and it looks maybe the mga drivers I am
> using do not support this but any insight would be, well insightful.

I'm attaching my working xorg.conf, I have a Matrox G400 also.

Dana
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# /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
#
# Modified from original to support 2 monitors.
# Installed the "official" mga_drv.o and mga_hal_drv.o from
# http://www.matrox.org. (mgadrive-x86-4.3.0.tar.gz)
# These files are located in /usr/X11R6/lib/modules/drivers on
# the below mentioned dist.
#
# I did copy original mga_drv.o to mga_drv.o.org just in case. ;) The
# mga_hal.o file did NOT come installed originally, at least not on
# my currect dist, which is Kubuntu breezy.
#
# Last updated on 12/15/06 by Dana J. Laude.

Section "Files"
	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	"dbe"
	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:2:0:0"
	Screen 0
	Option		"AGPMode" "4"
EndSection

Section "Device"
	Identifier	"Matrox Graphics, Inc. MGA G400 AGP_2"
	Driver		"mga"
	BusID		"PCI:2:0:0"
	Screen 1
	Option		"AGPMode" "4"
EndSection

Section "Monitor"
	Identifier	"Sylvania"
	HorizSync	30-69
	VertRefresh	50-90
	Option		"DPMS"
EndSection

Section	"Monitor"
	Identifier	"ViewSonic"
	HorizSync	30-70
	VertRefresh	50-120
	Option		"DPMS"
EndSection

Section "Screen"
	Identifier	"Sylvania"
	Device		"Matrox Graphics, Inc. MGA G400 AGP"
	Monitor		"Sylvania"
	DefaultDepth	24
	SubSection "Display"
		Depth		16
		Modes		"1280x1024" "1024x768" "800x600"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1280x1024" "1024x768" "800x600" "640x480"
	EndSubSection
EndSection

Section "Screen"
        Identifier      "ViewSonic"
        Device          "Matrox Graphics, Inc. MGA G400 AGP_2"
        Monitor         "ViewSonic"
        DefaultDepth    24
        SubSection "Display"
                Depth           16
                Modes           "1280x1024" "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth           24
                Modes           "1280x1024" "1024x768" "800x600" "640x480"
        EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
	Option		"Xinerama" "on"
	Screen		"Sylvania" 0 0
	Screen		"ViewSonic" RightOf "Sylvania"
EndSection

Section "DRI"
	Mode	0666
EndSection