I figured it out.  It turns out that since I am using two digital flat
panel screens I needed 'ConnectedMonitor DFP,DFP' instead of
'ConnectedMonitor DFP'

On Thu, Mar 20, 2003 at 09:21:46AM -0600, Benjamin Herbert wrote:
> Is TwinView supported by the Quadro4 900XGL card?  I am using the nvidia
> driver I downloaded from the nvidia website.  It works fine on one
> screen, but I still cant get both monitors to work.
> The second one just has a bunch
> of lines.   
> 
> Thanks again for any information.
> Here is my current XF86Config-4 file with TwinView:
> 
> 
> ------------------------------------------------------------
> 
>  Section "ServerLayout"
>      Identifier "XFree86 Configured"
>      Screen      0  "Screen0" 0 0
>      InputDevice    "Mouse0" "CorePointer"
>      InputDevice    "Keyboard0" "CoreKeyboard"
>  EndSection
> 
>  Section "Module"
>      Load  "dbe"             # Double-buffering
>      #Load  "GLcore"         # OpenGL support
>      #Load  "dri"            # Direct rendering infrastructure
>      Load  "glx"             # OpenGL X protocol interface
>      Load  "extmod"          # Misc. required extensions
>      Load  "v4l"             # Video4Linux
>      # Load  "record"        # X event recorder
>      # You only need the following two modules if you do not use xfs.
>      # Load  "freetype"       # TrueType font handler
>      # Load  "type1"         # Adobe Type 1 font handler
>  EndSection
> 
>  Section "InputDevice"
>      Identifier  "Keyboard0"
>      Driver      "keyboard"
>      Option      "XkbLayout" "us"
>  EndSection
> 
>  Section "InputDevice"
>      Identifier  "Mouse0"
>      Driver      "mouse"
>      Option      "Device" "/dev/mouse"
>      Option      "Protocol" "IMPS/2"
>      Option      "Emulate3Buttons" "off"
>      Option      "ZAxisMapping" "4 5"
>  EndSection
> 
>  Section "Monitor"
>      Identifier "DELL 1900FP"
>      VendorName "Unknown"
>      ModelName  "Unknown"
>      HorizSync 30 - 80
>      VertRefresh 56 - 76
>      Option "dpms"
>  EndSection
> 
>  Section "Device"
>     Identifier "NVIDIA GeForce 4 (generic)"
>      Driver "nvidia"
>      BoardName "Unknown"
>  EndSection
> 
>  Section "Device"
>      Identifier "Linux Frame Buffer"
>      Driver "fbdev"
>     BoardName "Unknown"
>  EndSection
> 
>  Section "Screen"
>      Identifier "Screen0"
>      Device "NVIDIA GeForce 4 (generic)"
>      Monitor "DELL 1900FP"
>      DefaultDepth 16
>      Subsection "Display"
>              Depth 16
>              Modes "1280x1024"
>      EndSubSection
>      Option "TwinView" "on"
>      Option "SecondMonitorHorizSync" "30 - 80"
>      Option "SecondMonitorVertRefresh" "56 - 60"
>      Option "Metamodes" "1280x1024"
>      Option "TwinViewOrientation" "RightOf"
>      Option "ConnectedMonitor" "DFP"
>  EndSection
> 
>  Section "DRI"
>      Mode 0666
>  
>  EndSection
> 
> 
> 
> On Wed, Mar 19, 2003 at 05:55:55PM -0500, Mark Vojkovich wrote:
> > 
> >    Dual head operation is only supported with the NVIDIA binary drivers.
> > I'd recommend avoiding NVIDIA version 4191 and using version 3123
> > instead.  Read the section on TwinView in the NVIDIA README to
> > configure it.  It is not configured the way other dual-head cards
> > supported by XFree86 are configured.  It does not have two
> > screen sections, for instance.
> > 
> > 
> >                         Mark.
> > 
> > 
> > On Wed, 19 Mar 2003, Benjamin Herbert wrote:
> > 
> > > Hello All,
> > > 
> > > Does anybody have any experience running Xinerama on a Quadro4 900XGL?
> > > There is one card with dual output and both monitors are exactly the
> > > same.  When I run Xconfigurator the driver gets set to 'vesa' and when I
> > > run startx both monitors work, but they are showing the same thing in
> > > both monitors.
> > > 
> > > I have downloaded and installed the Nvidia GLX and kernel rmps and
> > > changed my device to 'nvidia' but when I ran startx only one monitor
> > > worked.  The other monitor showed as a bunch of lines.  I read in the
> > > known bugs section that Xinerama does not work with OpenGL.  Does this
> > > mean that it will not work with the 'vesa' driver as well.  Thanks for
> > > any information, and here is my XFree86-4 file (ps - I am using RH7.3):
> > > 
> > > # XFree86 4.2.0 configuration generated by Xconfigurator 4.10.7
> > > 
> > > Section "ServerLayout"
> > >   Identifier "XFree86 Configured"
> > >   Screen      0  "Screen0" 0 0
> > >   Screen         "Screen1" RightOf "Screen2"
> > >   Option         "Xinerama" "on"
> > >   InputDevice    "Mouse0" "CorePointer"
> > >   InputDevice    "Keyboard0" "CoreKeyboard"
> > > EndSection
> > > 
> > > Section "Module"
> > >   Load  "dbe"             # Double-buffering
> > >   Load  "GLcore"         # OpenGL support
> > >   Load  "dri"            # Direct rendering infrastructure
> > >   Load  "glx"             # OpenGL X protocol interface
> > >   Load  "extmod"          # Misc. required extensions
> > >   Load  "v4l"             # Video4Linux
> > >   # Load  "record"        # X event recorder
> > >   # You only need the following two modules if you do not use xfs.
> > >   # Load  "freetype"       # TrueType font handler
> > >   # Load  "type1"         # Adobe Type 1 font handler
> > > EndSection
> > > 
> > > Section "InputDevice"
> > >   Identifier  "Keyboard0"
> > >   Driver      "keyboard"
> > >   Option      "XkbLayout" "us"
> > > EndSection
> > > 
> > > Section "InputDevice"
> > >   Identifier  "Mouse0"
> > >   Driver      "mouse"
> > >   Option      "Device" "/dev/mouse"
> > >   Option      "Protocol" "IMPS/2"
> > >   Option      "Emulate3Buttons" "off"
> > >   Option      "ZAxisMapping" "4 5"
> > > EndSection
> > > 
> > > Section "Monitor"
> > >   Identifier "DELL 1900FP"
> > >   VendorName "Unknown"
> > >   ModelName  "Unknown"
> > >   HorizSync 30 - 80
> > >   VertRefresh 56 - 76
> > >   Option "dpms"
> > > EndSection
> > > 
> > > Section "Device"
> > >   Identifier "NVIDIA GeForce 4 (generic)"
> > >   Driver "vesa"
> > >   BoardName "Unknown"
> > > EndSection
> > > 
> > > Section "Device"
> > >   Identifier "Linux Frame Buffer"
> > >   Driver "fbdev"
> > >   BoardName "Unknown"
> > > EndSection
> > > 
> > > Section "Screen"
> > >   Identifier "Screen0"
> > >   Device "NVIDIA GeForce 4 (generic)"
> > >   Monitor "DELL 1900FP"
> > >   DefaultDepth 16
> > >   Subsection "Display"
> > >           Depth 16
> > >           Modes "1280x1024"
> > >   EndSubSection
> > > EndSection
> > > 
> > > Section "Screen"
> > >   Identifier "Screen1"
> > >   Device "NVIDIA GeForce 4 (generic)"
> > >   Monitor "DELL 1900FP"
> > >   DefaultDepth 16
> > >   Subsection "Display"
> > >           Depth 16
> > >           Modes "1280x1024"
> > >   EndSubSection
> > > EndSection
> > > 
> > > Section "DRI"
> > >   Mode 0666
> > > EndSection
> > > _______________________________________________
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> > > 
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