Hello,

I've honestly made a number of searchers on the furum as well on the net, I tried all the solutions suggested on this forum.
I was here http://koala.ilog.fr/cgi-bin/nph-colas-modelines and tried the modeline with my monitor default parameters.
I used Xconfigurator, I manually edited my XF86Config and put the recommended values from my monitor data sheet, I surely Installed the latest drivers from Nvidia....
No way, whatever I do, I always stay with my monitor on 60hz.
Why X refuses to accept the parameters stated in XF86Config: 85 or 100 or something else, recommended, put by Xconfigurator or manually?

My monitor: IIYAMA HM903DT
Sync Frequency Horizontal: 30.0-130.0kHz, Vertical: 50-200Hz
Video Bandwidth 345MHz dot clock
Recommended Resolution 1280 × 1024 at 85Hz
Video: Leadtek A250 (GF4200)

In W2k I have 1280 × 1024 at 100Hz, in RH7.3 even 85Hz does not work.

Any suggestions,
Thx,
BF

If you've seen it being done by someone else somewhere, don't worry. It is possible. Post the entire XF86Config file here.

Actually I have this configuration:
===========
# **********************************************************************
# Monitor section
# **********************************************************************

# Any number of monitor sections may be present

Section "Monitor"

Identifier "CustomConfiguration"
VendorName "Unknown"
ModelName "Unknown"

# HorizSync is in kHz unless units are specified.
# HorizSync may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

HorizSync 30.0-130.0

# VertRefresh is in Hz unless units are specified.
# VertRefresh may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

VertRefresh 85-200

# Modes can be specified in two formats. A compact one-line format, or
# a multi-line format.

# These two are equivalent

# ModeLine "1024x768i" 45 1024 1048 1208 1264 768 776 784 817 Interlace

# Mode "1024x768i"
# DotClock 45
# HTimings 1024 1048 1208 1264
# VTimings 768 776 784 817
# Flags "Interlace"
# EndMode

# This is a set of standard mode timings. Modes that are out of monitor spec
# are automatically deleted by the server (provided the HorizSync and
# VertRefresh lines are correct), so there's no immediate need to
# delete mode timings (unless particular mode timings don't work on your
# monitor). With these modes, the best standard mode that your monitor
# and video card can support for a given resolution is automatically
# used.


# 1280x1024 @ 100 Hz, 107.16 kHz hsync
Modeline "1280x1024" 181.75 1280 1312 1440 1696 1024 1031 1046 1072 -HSync -VSync
# 1280x1024 @ 85 Hz, 91.15 kHz hsync
Modeline "1280x1024" 157.5 1280 1344 1504 1728 1024 1025 1028 1072 +HSync +VSync



EndSection

===========

I also tried this calculated on http://koala.ilog.fr/cgi-bin/nph-colas-modelines
==========
ModeLine "1280x1024" 224.30 1280 1336 1616 1728 1024 1026 1038 1064 #122Hz

==========
I tried the config compiled by Xconfigurator...
My monitor is still 60Hz monitor :-(

Regards,
BF

Your lucky to get 60hz I can only get 50 :-/

Try the following:

cp /etc/X11/XF86Config XF86Config.old
Xfree86 -configure

This will generate a new XF86Config file (you guessed that). Compare the two files. The XF86Config.new file which was generated from the configure argument. This file will generate a very basic configuration whilst attempting to find the best refresh rate. Post that too.

Bert

I have the following message:

Fatal server eror:
Server is already active for display 0
...

Sometimes monitors don't tell the truth about what they are capable of, especially to the nvidia driver. Try adding the following option to your graphic device section (the bit about your geforce card),
You have to stop your x server first.

Thank you, I'll try it tonight.
Regards,
BF

It doesn't work :-/
I put the line Option "IgnoreEDID" "1" in my Gforce section, restarted X... and I still have 60Hz.
What else can I do? Using Iiyama Vision Master Pro 454 19" at 60Hz makes me grrrrr.
Thank you,
BF

Try leaving it there and comment out the mode lines.

The lines other than that from
http://koala.ilog.fr/cgi-bin/nph-colas-modelines
are deleted, not just commented out.
Yesterday I tried Mandrake 9, the same problem - 60Hz....
Thank you
BF

When you installed the latest nvidia drivers, you did modify the /etc/X11/XF86Config (or /etc/X11/XF86Config-4 depending on version of Redhat you are running) and change the vesa driver line to "nvidia" didn't you? With my GF4 and RH 8, I was stuck in 60 Hz mode until I installed the nvidia drivers and modified this file. After that, I can't even select a vertical frequency less than 85 Hz. Doesn't 7.3 still use the XF86Config-4 file? I thought they switched to using just the XF86Config file in version 8.0.

I installed nvidia drivers as soon as I installed RH (and Mandrake) but what exactly should I change in nvidia section? I only tried the Monitor section of my /etc/X11/XF86Config
Thx
WS

Are you using RH 7.3 or RH 8? The reason I re-ask this question is in 7.3 I believe that RH still uses XF86Config-4. In version 8 they changed to using XF86Config exclusively. If you edit the wrong file, none of the following information is going to do a bit of good. In addition, if you are using 8, you have to install from either source rpm or tarball. You also don't state what version of Mandrake you have tried, but I believe even version 9 still uses XF86Config-4 and with 9 you would have to install from source or tarball. Again, after completing the following section, with a GF4, you shouldn't have to mess with the monitor section in order to get a decent refresh rate.

You also have to do these things: 1) Make sure that /etc/modules.conf contains the line "alias char-major-195 NVdriver"; 2) edit /etc/X11/XF86Config (or XF86Config-4, see above) and make sure that under Modules, Load "glx" is present and comment out Load "dri"; 3) comment out the entire DRI section (this normally consists of 3 lines); 4) make sure that you change the line under Drivers from "vesa" to "nvidia"; and 5) Restart X.

I'm actually using RH 7.3 and Mandrake 9.
I edited exclusively XF86Config file, never XF86Config-4....
It might be the reason why I've always got 60Hz, I'll try to edit XF86Config-4 and /etc/modules.conf tonight.
Thanks again,
BF