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-   -   Frequency Out of Range. (

pagalbilal 03-17-2006 12:56 AM

Frequency Out of Range.
Hello to all,

im new in linux world.

i installed linux 9.0 on my home PC but got some problem. when installing started in Graphix Mode. the monitor automaticullay tunred off???

but i already installed in my lab PC. no as such error occured.

my home pc configurations is

Processor: 1.7 Intel(Celeron)
Motherboard: MSI
VGA: S3pro
RAM: 256+128 Kingston
Hard Disk: Westren Digital 40gb
Monitor: LG Studionworks 505g

but when i installed my home pc with LG monitor when graphix mode start loading.
error occure on monitor screen...."Frequency out of Range"
Opearting Frequency linux default.
and Monitor Frequency is

plz tell me wht prob with this...and wht should i do in this situations...

thanks in advanced.

Bilal Hussain Meer

ntubski 03-17-2006 02:52 PM

You probably need to change your moniter frequencies in your /etc/X11/XFree86Config file. (It might also be called XFree86Config-4 or xorg.conf, I suppose you mean Red Hat 9, and I don't know exactly how it's setup.)

I don't use redhat, so I'm not sure if redhat-config-xfree86 will work in console. Try that first, it might be simpler.

To do this switch to console mode pressing Ctrl+Alt+backspace. Then type

cd /etc/X11
and type ls to see the files in the directory. From this you should be able to see whether you have XFree86Config ,XFree86Config-4, or xorg.conf

Now to edit the file type

nano filename
Find the place that has Section "Moniter" in the file and then look for the lines with HorizSync and VertRefresh. According to this site your moniter should have a HorizSync 30-60 and VertRefresh of 50-120

Then type startx and hopefully your graphics should be working.

pagalbilal 03-18-2006 02:26 AM

oh thanks you very much for reply.

yeh im trying to change my freqeuncy setting
i think it will be okay.

but im wondering there is any problem with my monitor..
i have the latest monitor?

but its ok
thanks you very much again.

pagalbilal 03-19-2006 03:12 AM


this is never work. i change /etc/X11/xorg.conf
monitor frequency range. but graphic not loaded..

the same error message appear on monitor screen.

it says
"Frequency Out of range"
HF=26.8 khz
VF=38.0 ohz
Operating Frequency is
HF=30-45 khz
VF=50-120 ohz

im wondering prob in my monitor?
but monitor is supporting that frequecny ranges.


kevkim55 03-19-2006 04:25 AM

What Distro do you use ? Redhat 9.0 or SuSE 9.0 or ... ????

Edit /etc/X11/xorg.conf by following the postings by ntubski. See if there any other references to invalid frequencies (frequencies that are not in the range as specified by your monitor) and modify them.

Otherwise, post the contents of /etc/X11/xorg.conf file here and one of us would have a look and suggest you something useful.

pagalbilal 03-19-2006 11:22 AM


im using Redhat linux 9.0(shrike)..

i already change frequency ranges. in etc/X11/xorg.conf
but prob is still there.
i once agin check my configurations. if prob is still. i will poste
contents of etc/X11/xorg.conf.

thanks alot

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