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Old 02-02-2005, 11:10 AM   #1
BACTRATE
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TFT Monitor out of Freqency problem


I have just installed a new TFT Monitor (GNR) and it works perfectly under
Win95 but when trying to boot into Linux it says 'out of frequency' and shuts the monitor down.So I am unable to make any adjustments in Linux.
Any help much appreciated.


Dave
 
Old 02-02-2005, 11:51 AM   #2
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which distro are you using?
can you get to a terminal? (ctrl+alt+F1~6)
 
Old 02-02-2005, 02:55 PM   #3
BACTRATE
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Thanks Tuttle.
I am using mandrake 10.1.I will try ctrl+alt+F1 -6.

Dave
 
Old 02-02-2005, 03:44 PM   #4
BACTRATE
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Hello again Tuttle
Can also get the command line shell by pressing ctrtl.alt f1 etc.Dont know how to configure the monitor from shell.


Dave
 
Old 02-02-2005, 04:35 PM   #5
Tuttle
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First, find out the horizontal and vertical refresh rate range for your monitor, then log in as root and run:
Code:
/usr/X11R6/bin/xorgconfig
This will configure the X server, asking you several questions about your hardware.
Once you get X up and running you can configure the finer details from within the KDE control centre.
 
Old 02-03-2005, 06:42 AM   #6
BACTRATE
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Thanks Tuttle I will try it


Cheers

Dave
 
Old 02-03-2005, 11:15 AM   #7
BACTRATE
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Now all ok thanks to you Tuttle.

All the best.

Dave
 
Old 02-04-2005, 05:05 AM   #8
jschiwal
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There is a program you can run to estimate a modeline:
example:
/usr/X11/bin/gtf 1280 800 60 --xorgmode
will give you an xorg style modeline for "1280x800@60Hz"

This example looks like this on my system:
[jschiwal@hpamd64 jschiwal]$ /usr/X11R6/bin/gtf 1280 800 60 --xorgmode

# 1280x800 @ 60.00 Hz (GTF) hsync: 49.68 kHz; pclk: 83.46 MHz
Modeline "1280x800_60.00" 83.46 1280 1344 1480 1680 800 801 804 828 -HSync +Vsync

I think that you may want to run this program when your computer isn't heavily loaded to get a better result.
 
Old 02-04-2005, 05:36 AM   #9
BACTRATE
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Thanks for the progtam and info Jschiwal.

Regards

Dave
 
  


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