Refresh Rate Problem

[Paul Howarth]

Ahmed Abdel-Aliem wrote:
> On Mon, 28 Feb 2005 17:40:50 +0000, Paul Howarth <paul at city-fan.org> wrote:
> 
>>David Curry wrote:
>>
>>>Ahmed Abdel-Aliem wrote:
>>>
>>>
>>>>On Mon, 28 Feb 2005 15:15:01 +0000, Paul Howarth <paul at city-fan.org>
>>>>wrote:
>>>>
>>>>
>>>>
>>>>>Ahmed Abdel-Aliem wrote:
>>>>>
>>>>>
>>>>>
>>>>>>How Can i Change the refresh rate of the monitor
>>>>>>i use fedora core 3
>>>>>>my screen resolution is 1280 X 1024
>>>>>>when i go to Applications --> Preferences --> Screen Resolution
>>>>>>i find that there is only one value for the refresh rate which is 60
>>>>>>Hz & i can't change it
>>>>>>i went to the file /etc/x11/xorg.conf
>>>>>>i found this section :
>>>>>>
>>>>>>Section "Monitor"
>>>>>>     Identifier   "Monitor0"
>>>>>>     VendorName   "Monitor Vendor"
>>>>>>     ModelName    "710E"
>>>>>>     DisplaySize  330        250
>>>>>>     HorizSync    30.0 - 71.0
>>>>>>     VertRefresh  50.0 - 160.0
>>>>>>     Option      "dpms"
>>>>>>EndSection
>>>>>>
>>>>>>what should i do to increase the refresh rate of my monitor from 60 Hz
>>>>>>to 90 Hz or 100 Hz ??
>>>>>>
>>>>>>can anyone help me with this please ?
>>>>>>
>>>>>
>>>>>What is the make and model of your monitor?
>>>>>
>>>>>Do you know what the horizontal and vertical sync frequencies are that
>>>>>it supports (this information should be in the monitor manual)?
>>>>>
>>>>>Paul.
>>>>>
>>>>>
>>>>
>>>>
>>>>My Monitor is LG Studiowords 710E 17"
>>>>i can't find the manual now, but it supports up to 90 and 100 Hz cause
>>>>i use this refresh rate in  windows it works fine with no problems
>>>>
>>>>
>>>>
>>>>
>>>
>>>You might be able to find the monitor specs online through a google search.
>>
>>I found one here:
>>http://translate.google.com/translate?hl=en&sl=pt&u=http://www.amx.com.br/_model1/produto.asp%3Fproduto%3DLG_02%26emp%3DISICONECTION&prev=/search%3Fq%3D%2522Studioworks%2B710E%2522%2Bhorizontal%2Bsync%26hl%3Den%26lr%3D%26c2coff%3D1%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DG
>>
>>However, the information there appears to contradict itself.
>>
>>It says the horizontal frequency range is 30-70 KHz and the vertical
>>frequency range is 50-160 Hz (which appear to be very similar to the the
>>auto-detected specs in the xorg.conf file above), and that the monitor
>>is capable of 1280x1024 at 85Hz.
>>
>>If you go to http://www.sh.nu/nvidia/gtf.php (modeline calculator) and
>>plug in 1280x1024 at 85 Hz refresh rate, you get a required horizontal
>>sync frequency of over 91 KHz, which is well above the published
>>specification. So something is definitely wrong.
>>
>>If you are absolutely sure that the monitor can do this resolution, you
>>could change the "HorizSync 30.0 - 71.0" to "HorizSync 30.0 - 92.0" in
>>your xorg.conf and that should allow a higher refresh rate. However, if
>>you monitor does not support this rate, it could be damaged, so beware.
>>
>>Paul.
> 
> 
> i changed the values in the file and it didn't work, the monitor gave
> me a warning and rebooted, so i booted to windows :( to send this
> email,
> is there a way i can modify the file again to the old value so i don't
> have to install Fedora again !
> i tried using the boot cd
> choosed the rescue mode
> and in the shell i found the folder etc
> but inside it i couldn't find the folder x11 which has the file i modified
> 
> is there a way to do this ?

Use the right directory name; it's "X11", not "x11". Remember, Linux 
filenames are case sensitive.

Paul.