Help with 4 monitor setup in gnome

[Robstarusa]

Hi all,

I have the following video cards connected to 4 monitors:

7800GT w/ 256M ram (2 DVI) works fine with nvidia drivers + Twinview
Matrox Millennium PCI with 4M ram, 1680x1050 single monitor
voodoo3 2000, not sure on ram (16?), 1680x1050 single monitor.

I have tried crafting an xorg.conf file, but if I use it I get 4 blank screens. Any advice?

My monitor layout is like this:

[1920x1080/7800GT/DVI] [1920x1080/7800GT/DVI] [1680x1050 - v3] [1680x1050 - matrox]

Are my driver names wrong? How about my PCI device definitions in the xorg.conf file?

Output of lspci | grep VGA


rob2@rob-desktop-1:~$ lspci | grep VGA
01:00.0 VGA compatible controller: nVidia Corporation G70 [GeForce 7800 GT] (rev a1)
06:01.0 VGA compatible controller: Matrox Graphics, Inc. MGA 2064W [Millennium] (rev 01)
06:02.0 VGA compatible controller: 3Dfx Interactive, Inc. Voodoo 3 (rev 01)


My xorg.conf:



Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
Screen 1 "Screen1" RightOf "Screen0"
Screen 2 "Screen2" RightOf "Screen1"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "ServerFlags"
Option "Xinerama" "1"
EndSection

Section "InputDevice"

# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Sceptre X226W-1920"
HorizSync 29.0 - 81.0
VertRefresh 55.0 - 76.0
Option "DPMS"
EndSection

# http://usa.asus.com/product.aspx?P_ID=nDd2iW0CpEGYUWm1
Section "Monitor"
Identifier "Monitor1"
VendorName "Asus"
ModelName "VW192T+"
HorizSync 31.0 - 80.0
VertRefresh 56.0 - 75
EndSection

# http://usa.asus.com/product.aspx?P_ID=nDd2iW0CpEGYUWm1
Section "Monitor"
Identifier "Monitor2"
VendorName "Asus"
ModelName "VW192T+"
HorizSync 31.0 - 80.0
VertRefresh 56.0 - 75
EndSection

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 7800 GT"
EndSection

# Vodoo 3
Section "Device"
Identifier "Device1"
Driver "tdfx"
VendorName "Bankrupt 3DFX"
BoardName "Voodoo3 2000"
BusID "PCI:6:2:0"
EndSection

# Matrox Millennium
Section "Device"
Identifier "Device2"
Driver "mga"
VendorName "Matrox"
BoardName "Millennium 4MB"
BusID "PCI:6:1:0"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "1"
Option "metamodes" "DFP-0: nvidia-auto-select +0+0, DFP-1: nvidia-au
to-select +1920+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection

Section "Screen"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Subsection "Display"
Depth 24
Modes "1680x1050"
EndSubSection
EndSection

Section "Screen"
Identifier "Screen2"
Device "Device2"
Monitor "Monitor2"
DefaultDepth 16
Subsection "Display"
Depth 16
Modes "1680x1050"
EndSubSection
EndSection