scheda video nvidia fx5900xt e due monitor lcd, posto il mio xorg perchè non riesco a far andare il secondo monitor
# Monitor section
# ************************************************** ********************

# Any number of monitor sections may be present

Section "Monitor"

Identifier "LGL1710S"

# HorizSync is in kHz unless units are specified.
# HorizSync may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

HorizSync 31.5 - 79.0

# HorizSync 30-64 # multisync
# HorizSync 31.5, 35.2 # multiple fixed sync frequencies
# HorizSync 15-25, 30-50 # multiple ranges of sync frequencies

# VertRefresh is in Hz unless units are specified.
# VertRefresh may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

VertRefresh 56-75
Option "TwinView" "0"
#Option "SecondMonitorHorizSync" "31.5-79"
#Option "SecondMonitorVertRefresh" "56-75"
#Option "MetaModes" "1280x1024 @1024x768"

EndSection
Section "Monitor"

Identifier "LGL1710B"
HorizSync 31.5 - 79.0
VertRefresh 56-75
#Option "TwinView" "1"
EndSection

# ************************************************** ********************
# Graphics device section
# ************************************************** ********************

# Any number of graphics device sections may be present

# Standard VGA Device:

Section "Device"
Identifier "GeForce1"
VendorName "Unknown"
BoardName "Unknown"

Driver "nvidia"

Option "RenderAccel" "true"
Option "NvidiaAGP" "3"
Option "NoLogo" "1"
Option "TwinView" "0"
Option "SecondMonitorHorizSync" "32-79"
Option "SecondMonitorVertRefresh" "56-75"
# Option "TwinViewOrientation" "Clone"
Option "MetaModes" "1280x1024 @1024x768"


# The chipset line is optional in most cases. It can be used to override
# the driver's chipset detection, and should not normally be specified.

# Chipset "generic"

# The Driver line must be present. When using run-time loadable driver
# modules, this line instructs the server to load the specified driver
# module. Even when not using loadable driver modules, this line
# indicates which driver should interpret the information in this section.

# Driver "vga"
# The BusID line is used to specify which of possibly multiple devices
# this section is intended for. When this line isn't present, a device
# section can only match up with the primary video device. For PCI
# devices a line like the following could be used. This line should not
# normally be included unless there is more than one video device
# intalled.

# BusID "PCI:0:10:0"

# VideoRam 256

# Clocks 25.2 28.3

EndSection

# Device configured by xorgconfig:

Section "Device"
Identifier "GeForce2"
Driver "nvidia"
#VideoRam 131072
# Insert Clocks lines here if appropriate
Option "RenderAccel" "true"
#Option "NvidiaAGP" "3"
Option "NoLogo" "1"
Option "TwinView" "0"
# Option "SecondMonitorHorizSync" "32-79"
# Option "SecondMonitorVertRefresh" "56-75"
EndSection

#Section "Extensions"
#Option "Composite" "Enable"
#Option "RENDER" "Enable"
#EndSection


# ************************************************** ********************
# Screen sections
# ************************************************** ********************

# Any number of screen sections may be present. Each describes
# the configuration of a single screen. A single specific screen section
# may be specified from the X server command line with the "-screen"
# option.

Section "Screen"
Identifier "Screen 1"
Device "GeForce1"
Monitor "LGL1710S"
DefaultDepth 24

Subsection "Display"
Depth 8
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
EndSection

Section "Screen"
Identifier "Screen 2"
Device "GeForce2"
Monitor "LGL1710B"
DefaultDepth 24

Subsection "Display"
Depth 8
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
EndSection

# ************************************************** ********************
# ServerLayout sections.
# ************************************************** ********************

# Any number of ServerLayout sections may be present. Each describes
# the way multiple screens are organised. A specific ServerLayout
# section may be specified from the X server command line with the
# "-layout" option. In the absence of this, the first section is used.
# When now ServerLayout section is present, the first Screen section
# is used alone.

Section "ServerLayout"

# The Identifier line must be present
Identifier "Simple Layout"

# Each Screen line specifies a Screen section name, and optionally
# the relative position of other screens. The four names after
# primary screen name are the screens to the top, bottom, left and right
# of the primary screen. In this example, screen 2 is located to the
# right of screen 1.

# Screen "Screen 1"

Screen "Screen 1" "Screen 2" "" "" ""
# Screen "Screen 2" "" "" "Screen 1" ""

Option "screen 1 leftof screen 2"

# Each InputDevice line specifies an InputDevice section name and
# optionally some options to specify the way the device is to be
# used. Those options include "CorePointer", "CoreKeyboard" and
# "SendCoreEvents".

InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"

EndSection

# Section "DRI"
# Mode 0666
# EndSection

cosa non è corretto?