I'm trying to set up xinerama or any dual head setup with the cards below...
Nvidia GeForce MX 440 PCI card at PCI:1:8:0 using the nv driver
Sapphire Radeon 9600 Pro AGP card at PCI:2:0:0 using the radeon driver

I have each card working perfectly when only one card is in the machine. As soon as I put both of them in, the Radeon screen acts like it's going to turn on, but no longer shows any video even if I only have that card in the XF86Config file.

There are no errors in the XFree86.0.log and the only warnings are ....
(WW) `fonts.dir' not found (or not valid) in "/usr/X11R6/lib/X11/fonts/local/".
(WW) fglrx: No matching Device section for instance (BusID PCI:2:0:1) found <-- This is the DVI on the radeon card. I'm not using it anyway.
(WW) fglrx(0): board is an unknown third party board, chipset is supported
(WW) (1400x1050,Samsung) mode clock 122MHz exceeds DDC maximum 110MHz

Also, If Xinerama cannot be done with this setup, can Dual-Head or Twinview? Or should I just go get another radeon card?

Thanks


My XF86Config file ....

Section "dri"
Mode 0666
EndSection

Section "Module"
Load "dbe" # Double buffer extension
SubSection "extmod"
Option "omit xfree86-dga" # don't initialise the DGA extension
EndSubSection
Load "type1"
Load "freetype"
Load "glx" # libglx.a
Load "dri" # libdri.a
EndSection

Section "Files"
RgbPath "/usr/X11R6/lib/X11/rgb"
FontPath "/usr/X11R6/lib/X11/fonts/local/"
FontPath "/usr/X11R6/lib/X11/fonts/misc/"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/Type1/"
FontPath "/usr/X11R6/lib/X11/fonts/Speedo/"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi/"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi/"
FontPath "unix/:7100"
EndSection

Section "ServerFlags"
EndSection

Section "InputDevice"
Identifier "Keyboard1"
Driver "Keyboard"
Option "AutoRepeat" "500 30"
Option "XkbRules" "xfree86"
Option "XkbModel" "pc104"
Option "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "ExplorerPS/2"
Option "Device" "/dev/mouse"
EndSection

Section "Monitor"
Identifier "CTX"
HorizSync 31.5 - 60.0
VertRefresh 60 - 75
Option "DPMS"
EndSection

Section "Monitor"
Identifier "Samsung"
HorizSync 30.0 - 70.0
VertRefresh 50.0 - 160.0
Option "DPMS"
EndSection

Section "Device"
Identifier "ATI" #Identify
Driver "fglrx"
Option "no_accel" "no"
Option "no_dri" "no"
Option "mtrr" "off"
Option "DesktopSetup" "0x00000000" #Don't change this for dualhead
Option "MonitorLayout" "CRT, CRT"
Option "IgnoreEDID" "off"
Option "HSync2" "31.5 - 80.5"
Option "VRefresh2" "60 - 100"
Option "ScreenOverlap" "0"
Option "NoTV" "yes"
Option "TVStandard" "NTSC-M"
Option "TVHSizeAdj" "0"
Option "TVVSizeAdj" "0"
Option "TVHPosAdj" "0"
Option "TVVPosAdj" "0"
Option "TVHStartAdj" "0"
Option "TVColorAdj" "0"
Option "GammaCorrectionI" "0x00000000"
Option "GammaCorrectionII" "0x00000000"
Option "Capabilities" "0x00008000"
Option "VideoOverlay" "on"
Option "OpenGLOverlay" "off"
Option "CenterMode" "off"
Option "PseudoColorVisuals" "off"
Option "Stereo" "off"
Option "StereoSyncEnable" "1"
Option "FSAAEnable" "yes" # Enable FSAA on first head
Option "FSAAScale" "2" # Enable FSAA on first head
Option "FSAADisableGamma" "no"
Option "FSAACustomizeMSPos" "no"
Option "FSAAMSPosX0" "0.000000"
Option "FSAAMSPosY0" "0.000000"
Option "FSAAMSPosX1" "0.000000"
Option "FSAAMSPosY1" "0.000000"
Option "FSAAMSPosX2" "0.000000"
Option "FSAAMSPosY2" "0.000000"
Option "FSAAMSPosX3" "0.000000"
Option "FSAAMSPosY3" "0.000000"
Option "FSAAMSPosX4" "0.000000"
Option "FSAAMSPosY4" "0.000000"
Option "FSAAMSPosX5" "0.000000"
Option "FSAAMSPosY5" "0.000000"
Option "UseFastTLS" "0"
Option "BlockSignalsOnLock" "on"
Option "UseInternalAGPGART" "no"
Option "ForceGenericCPU" "no"
Option "KernelModuleParm" "agplock=0" # AGP locked user pages: disabled
Option "EnablePrivateBackZ" "yes" # Enable on both heads for FSAA
BusID "PCI:2:0:0" # vendor=1002, device=4e45 (Same for both heads)
Screen 0 # This refers to first head
EndSection

Section "Device"
Identifier "GeForce"
Driver "nv"
VendorName "Videocard vendor"
BoardName "NVIDIA GeForce 4 MX (generic)"
BusID "PCI:1:8:0"
EndSection

Section "Screen"
Identifier "Screen0"
Device "ATI"
Monitor "CTX"
DefaultDepth 24
Subsection "Display"
Depth 24
Modes "1024x768"
ViewPort 0 0
EndSubsection
EndSection

Section "Screen"
Identifier "Screen1"
Device "GeForce"
Monitor "Samsung"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1024x768"
ViewPort 0 0
EndSubSection
EndSection

Section "ServerLayout"
Identifier "Right"
Screen "Screen1"
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
EndSection

Section "ServerLayout"
Identifier "Left"
Screen "Screen0"
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
EndSection

Section "ServerLayout"
Identifier "Dual"
Screen "Screen0"
Screen "Screen1" RightOf "Screen0"
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
EndSection

well, it is possible.....

Section "dri"
Mode 0666
EndSection

Section "Module"
Load "dbe" # Double buffer extension
SubSection "extmod"
Option "omit xfree86-dga" # don't initialise the DGA extension
EndSubSection
Load "type1"
Load "freetype"
Load "glx" # libglx.a
Load "dri" # libdri.a
EndSection

Section "Files"
RgbPath "/usr/X11R6/lib/X11/rgb"
FontPath "/usr/X11R6/lib/X11/fonts/local/"
FontPath "/usr/X11R6/lib/X11/fonts/misc/"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/Type1/"
FontPath "/usr/X11R6/lib/X11/fonts/Speedo/"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi/"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi/"
EndSection

Section "ServerFlags"
# Option "NoTrapSignals"
# Option "DontZap"
# Option "Dont Zoom"
# Option "DisableVidModeExtension"
# Option "AllowNonLocalXvidtune"
# Option "DisableModInDev"
# Option "AllowNonLocalModInDev"
EndSection

Section "InputDevice"
Identifier "Keyboard1"
Driver "Keyboard"
# Option "Protocol" "Xqueue"
Option "AutoRepeat" "500 30"
# Option "Xleds" "1 2 3"
# Option "LeftAlt" "Meta"
# Option "RightAlt" "ModeShift"
# Option "XkbModel" "pc102"
# Option "XkbModel" "microsoft"
# Option "XkbLayout" "de"
# Option "XkbLayout" "de"
# Option "XkbVariant" "nodeadkeys"
# Option "XkbOptions" "ctrl:swapcaps"
# Option "XkbRules" "xfree86"
# Option "XkbModel" "pc101"
# Option "XkbLayout" "us"
# Option "XkbVariant" ""
# Option "XkbOptions" ""
# Option "XkbDisable"
Option "XkbRules" "xfree86"
Option "XkbModel" "pc101"
Option "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "ImPS/2"
Option "ZAxisMapping" "4 5"
Option "Device" "/dev/mouse"
# Option "Protocol" "Xqueue"
# Option "BaudRate" "9600"
# Option "SampleRate" "150"
# Emulate3Buttons is an option for 2-button Microsoft mice
# Emulate3Timeout is the timeout in milliseconds (default is 50ms)
# Option "Emulate3Buttons"
# Option "Emulate3Timeout" "50"
# ChordMiddle is an option for some 3-button Logitech mice
# Option "ChordMiddle"
EndSection

Section "Monitor"
Identifier "Monitor0"
HorizSync 31.5 - 60.0
VertRefresh 60 - 75
Option "DPMS"
EndSection

Section "Monitor"
Identifier "Monitor1"
HorizSync 31.5 - 60.0
VertRefresh 60 - 75
Option "DPMS"
EndSection

Section "Monitor"
Identifier "Samsung"
HorizSync 30.0 - 70.0
VertRefresh 50.0 - 160.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Standard VGA"
VendorName "Unknown"
BoardName "Unknown"
Driver "vga"
EndSection

Section "Device"
Identifier "ATI Graphics Adapter connector 0"
Driver "fglrx"
# ### generic DRI settings ###
# === disable PnP Monitor ===
#Option "NoDDC"
# === disable/enable XAA/DRI ===
Option "no_accel" "no"
Option "no_dri" "no"
# === misc DRI settings ===
Option "mtrr" "off" # disable DRI mtrr mapper, driver has its own code for mtrr
# ### FireGL DDX driver module specific settings ###
# === Screen Management ===
Option "DesktopSetup" "0x00000000"
Option "MonitorLayout" "AUTO, AUTO"
Option "IgnoreEDID" "off"
Option "HSync2" "31.5 - 60.0"
Option "VRefresh2" "60 - 75"
Option "ScreenOverlap" "0"
# === TV-out Management ===
Option "NoTV" "yes"
Option "TVStandard" "NTSC-M"
Option "TVHSizeAdj" "0"
Option "TVVSizeAdj" "0"
Option "TVHPosAdj" "0"
Option "TVVPosAdj" "0"
Option "TVHStartAdj" "0"
Option "TVColorAdj" "0"
Option "GammaCorrectionI" "0x00000000"
Option "GammaCorrectionII" "0x00000000"
# === OpenGL specific profiles/settings ===
Option "Capabilities" "0x00000000"
# === Video Overlay for the Xv extension ===
Option "VideoOverlay" "on"
# === OpenGL Overlay ===
# Note: When OpenGL Overlay is enabled, Video Overlay
# will be disabled automatically
Option "OpenGLOverlay" "off"
# === Center Mode (Laptops only) ===
Option "CenterMode" "off"
# === Pseudo Color Visuals (8-bit visuals) ===
Option "PseudoColorVisuals" "off"
# === QBS Management ===
Option "Stereo" "off"
Option "StereoSyncEnable" "1"
# === FSAA Management ===
Option "FSAAEnable" "no"
Option "FSAAScale" "1"
Option "FSAADisableGamma" "no"
Option "FSAACustomizeMSPos" "no"
Option "FSAAMSPosX0" "0.000000"
Option "FSAAMSPosY0" "0.000000"
Option "FSAAMSPosX1" "0.000000"
Option "FSAAMSPosY1" "0.000000"
Option "FSAAMSPosX2" "0.000000"
Option "FSAAMSPosY2" "0.000000"
Option "FSAAMSPosX3" "0.000000"
Option "FSAAMSPosY3" "0.000000"
Option "FSAAMSPosX4" "0.000000"
Option "FSAAMSPosY4" "0.000000"
Option "FSAAMSPosX5" "0.000000"
Option "FSAAMSPosY5" "0.000000"
# === Misc Options ===
Option "UseFastTLS" "0"
Option "BlockSignalsOnLock" "on"
Option "UseInternalAGPGART" "no"
Option "ForceGenericCPU" "no"
BusID "PCI:2:0:0" # vendor=1002, device=4150
Screen 0
EndSection

Section "Device"
Identifier "ATI Graphics Adapter connector 1"
Driver "fglrx"
BusID "PCI:2:0:0" # vendor=1002, device=4150
Screen 1
EndSection

Section "Device"
Identifier "GeForce"
Driver "nvidia"
VendorName "Videocard vendor"
BoardName "NVIDIA GeForce 4 MX (generic)"
Option "NvAGP" "0"
BusID "PCI:1:8:0"
EndSection

Section "Screen"
Identifier "Screen0"
Device "ATI Graphics Adapter connector 0"
Monitor "Monitor0"
DefaultDepth 24
#Option "backingstore"

Subsection "Display"
Depth 24
Modes "1024x768"
ViewPort 0 0 # initial origin if mode is smaller than desktop
# Virtual 1280 1024
EndSubsection
EndSection

Section "Screen"
Identifier "Screen1"
Device "ATI Graphics Adapter connector 1"
Monitor "Monitor1"
DefaultDepth 24
#Option "backingstore"

Subsection "Display"
Depth 24
Modes "1024x768"
ViewPort 0 0 # initial origin if mode is smaller than desktop
# Virtual 1280 1024
EndSubsection
EndSection

Section "Screen"
Identifier "Screen2"
Device "GeForce"
Monitor "Samsung"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1024x768"
ViewPort 0 0
EndSubSection
EndSection

Section "ServerLayout"
Identifier "Dual"
Screen "Screen0"
Screen "Screen2" RightOf "Screen0"
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
EndSection

Section "ServerLayout"
Identifier "Left"
Screen "Screen0"
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
EndSection

Section "ServerLayout"
Identifier "Right"
Screen "Screen2"
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
EndSection

After doing a bit more trial and error...

The above XF86Config-4 file works only if I set up the BIOS to use the AGP card to show the boot sequence, and only if I don't use the graphical boot. So, the nogb option had to be passed to the kernel on boot. After all this, it works great.