I hope this is your questions.. this works:
Section "Monitor" Identifier "Dell" Option "DPMS" Option "UseEDID" "FALSE" Option "UseEDIDFreqs" "FALSE" Option "UseEDIDDpi" "FALSE" Option "ModeValidation" "NoEdidModes" HorizSync 30 - 85 VertRefresh 48 - 120 # DisplaySize 312 234
I hope this is your questions..
this works:
Section "Monitor"
Identifier "Dell"
Option "DPMS"
Option "UseEDID" "FALSE"
Option "UseEDIDFreqs" "FALSE"
Option "UseEDIDDpi" "FALSE"
Option "ModeValidation" "NoEdidModes"
HorizSync 30 - 85
VertRefresh 48 - 120
# DisplaySize 312 234