Xorg refresh rate configuration

[Francesco Del Citto]

Hi!
I have a Sony CRT display (Multiscan G420) which can reach up to
1024x768 at 120Hz and 1280x1024 at 100Hz, and a Nvidia GeForce4 Ti4200 with Nvidia
drivers.
In FC4, the corresponding section of xorg.conf is:

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Sony"
    ModelName      "Sony Multiscan G420"
    HorizSync       30.0 - 110.0
    VertRefresh     48.0 - 170.0
    Option         "dpms"
EndSection

Section "Device"
    Identifier     "Videocard0"
    Driver         "nvidia"
    VendorName     "Videocard vendor"
    BoardName      "NVIDIA GeForce 4 (generic)"
EndSection

The problem is that I can't select a refresh rate higher than 85Hz, whatever
resolution I choose.
The values of HorizSync and VertRefresh are the right ones, I think.

Any suggestions?
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