Xorg refresh rate configuration

[Francesco Del Citto]

I've almost reloved by adding this lines to xorg.conf:

    ModeLine "1280x1024" 195.36 1280 1344 1656 1776 1024 1027 1040 1068
#103Hz
    ModeLine "1280x1024" 189.67 1280 1344 1656 1776 1024 1027 1040 1068
#100Hz
    ModeLine "1280x1024" 161.22 1280 1344 1656 1776 1024 1027 1040 1068
#85Hz
    ModeLine "1280x1024" 142.25 1280 1344 1656 1776 1024 1027 1040 1068
#75Hz
    ModeLine "1280x1024" 113.80 1280 1344 1656 1776 1024 1027 1040 1068
#60Hz
    ModeLine "1024x768" 136.52 1024 1072 1312 1408 768 770 782 808 #120Hz
    ModeLine "1024x768" 113.76 1024 1072 1312 1408 768 770 782 808 #100Hz
    ModeLine "1024x768" 96.70 1024 1072 1312 1408 768 770 782 808 #85Hz
    ModeLine "1024x768" 85.32 1024 1072 1312 1408 768 770 782 808 #75Hz
    ModeLine "1024x768" 68.25 1024 1072 1312 1408 768 770 782 808 #60Hz

computed using the script provided by this site:
http://koala.ilog.fr/cgi-bin/nph-colas-modelines

I'm still wandering why default setting of Xorg doesn't support a rate
higher than 85Hz...
It could be for security reasons, I guess...

2006/2/14, Bob Chiodini <rchiodin at bellsouth.net>:
>
> On Tue, 2006-02-14 at 02:02 -0900, gary wrote:
> > On Tue, 2006-02-14 at 11:36 +0100, Francesco Del Citto wrote:
> > > 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?
> > >
> >     Check out vert.freq - horiz.freq here --
> > http://www.chipmunk.nl/beeldschermen/Sony.html
> >
> >       --gary
> >
>
> >From the above URL, your frequencies are pretty close.  If you are using
> the proprietary Nvidia driver try adding:
>
>         Option      "UseEdidFreqs" "0"
>
> to the "Device" section for the video card.
>
> Bob...
>
> --
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