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Thread: Monitor Frequency

  1. #1

    Monitor Frequency


    I have an old 14'' inch Vintron Monitor.
    Redhat is not detecting the frequency of the monitor and hence giving some vertical lines...
    Version of Redhat is 9.0
    Can anybody tell tell me what to do about it.

    manu

  2. #2

    Re:Monitor Frequency

    hello,
    the easiest way is to see if the model is listed durring setup, try re-running redhat-config-xfree86,
    else you can add modelines to the the file /etc/X11/XF86config - this can be tricky. here is one how-to:
    http://www.knowplace.org/timings.html
    another, probably better is here.

    do you have a model number for you moniter?

  3. #3
    Mentor Stuart's Avatar
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    Re:Monitor Frequency

    I have the same problem with a different monitor.

    You need to google for the model number of that monitor and get it's specs (hsync, vsync) and then put those in your XF86Config file.

  4. #4

    Re:Monitor Frequency


    I have tried searching but was not able to get any specs.
    Is there some other method, like some program or soemthing to figure it out.

    manisha

  5. #5

    Re:Monitor Frequency

    you can try xvidtune - but be careful!!

  6. #6

    Re:Monitor Frequency

    My monitor sometimes has a high pitched noise where there is a page with a lot of white. Why's that?

  7. #7

    Re:Monitor Frequency

    Can you tell me how to use xdvitune as i am new to linux so dont know much about it.

    manu

  8. #8
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    Re:Monitor Frequency

    [quote author=gmoreno link=board=3;threadid=10261;start=0#msg92666 date=1109571131]
    My monitor sometimes has a high pitched noise where there is a page with a lot of white. Why's that?
    [/quote]
    I had mine like that. After a while doing that, it will go blank while I was reading something (like going into sleep mode even though I'm actively typing documents). If I hit the top of the monitor, it will return.

    After a while of that, it burned with holy smell that trigger even my smoke alarm (and a yelling from my wife for playing with THAT thing). ;D YMMV though.

  9. #9
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    Re:Monitor Frequency

    To Manu;

    You should take Generic values given by Red Hat Installer since it will be the safest value if you do not know exactly the values of your monitor's VSync and HSync. Those values should be on the sticker of your monitor (where they list a host of operation values along with FCC ID and stuff at least here in the US).

    Please also check out Red Hat 9's XConfig manual section. It will tell you how to configure it.

    Or you can search for "xdvitune" with "whereis" command. That will also tell you where the binary is and you can go in there and issue command like "./xdvitune".

    HTH ...

  10. #10

    Re:Monitor Frequency

    There is nothing written on the monitor anywhere.
    I got the generic values generated by Redhat and think will work with them for the time being till i dont hit on anything.

    One question that i have is:
    When i installed windows on the same system, it didnt give any problem,
    Why is it so?
    Is there some method from which we can extract this information from Windows.

    manu

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