I've had nothing but problems getting my Nvidia cards to play nice with my edid non-compliant Syntax Olevia LT32HV under linux. So here's my nvidia xorg.conf from Ubuntu 9.10 Linux for everyone to enjoy. Hopefully I used enough search terms for this to be useful for someone else.
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
EndSection
Section "Files"
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 "Unknown"
HorizSync 30.0 - 85.0
VertRefresh 50.0 - 85.0
Modeline "1368x768" 85.86 1368 1440 1584 1800 768 769 772 795
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "UseEdidFreqs" "False"
Option "ExactModeTimingsDVI" "True"
Option "UseEdidDpi" "False"
SubSection "Display"
Depth 24
Modes "1368x768" "1280x720"
EndSubSection
EndSection