Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
Modeline "1024x768" 115.5 1024 1056 1248 1440 768 771 781 802 -HSync -VSync
HorizSync 30-85
VertRefresh 50-160
Option "DPMS"
EndSection
most ez configom.