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Thread: How do you check the signal timing of a computer?




  1. #1
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    I'm not sure if this is the right catagory to place this post but I'm thinking this might be a Windows XP setting:confused: ...

    Anyway, I need to know how to check to see if the signal timing of my computer is within the my LCD monitors specifications and I haven't a clue how to do this.

    For XGA 1024X768(The res I want to run) my monitors manual list horizontal Frequency at 48.4 KHZ, 56.5 KHZ, and 60.0 KHZ and Vertical is 60.0 Hz, 70.1Hz, 75.0 Hz. I'm assuming thats some sort of range my system should be set at for my monitor for better display centering, which I need. Could someone please help me out here?

  2. #2
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    I think that windows wont show the frequencies that your monitor cannot handle. Right click anywhere on your desktop, select properties, click the parameters tab, the advanced setting button, the monitor tab and there you have the monitor frequency setting.

    May not be exactly the same buttons... my winXP is in french.

    Hope i could help!
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  3. #3
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    Quote Originally Posted by syx
    I think that windows wont show the frequencies that your monitor cannot handle. Right click anywhere on your desktop, select properties, click the parameters tab, the advanced setting button, the monitor tab and there you have the monitor frequency setting.

    May not be exactly the same buttons... my winXP is in french.

    Hope i could help!
    I don't have a parameters tab:confused: . But I have my refresh rate for Windows XP pro's(US) desktop set at 75hz, which is the maximum but this does not affect how the monitor centers things on the screen even when its turned down to its lowest setting of 60hz.

    It's possible that a setting in my Geforce FX video card has some sort of sensitivity setting for this also but I'm not sure what....:?:

  4. #4
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    The Refresh Rate, messured in Hz, is how many times per second the screen is drawn. The human eye I beleive sees picutes at around 72Hz, so anything lower then that will result in the screen flickering. Its the same reason why when your watching TV and they show a monitor, it flickers. So if you run your monitor at a lower refresh rate, even though you may not notice it, your brain has to do extra work when analysing the screen. This can cause headaches, as it did with me. So usually you want a refresh rate >72Hz.

    The reason it works like this requires a bit of knowledge about how monitors work. A normal CRT used 3 guns, each displaying its own color (RGB) and different intesities of each gun put together can create all the colors your computer needs. The guns then make passes down the screen to draw the picture. When the guns are not shooting at one location, there will be nothing there, this is why you see the flashing.

    With LCD, Im not sure exactly how it works, but to say the least the picture will remain on the screen without having to be drawn. This results in a refresh rate being almost useless because the whole screen is changed in Real Time.

    So to sum it up, you shouldnt have to worry about Refresh Rate with your LCD. 60Hz should work best.

    As for centering the image, you should be able to adjust that with the buttons on your monitor, or try the utility that came with your graphics driver (e.i. nView for an nVidia based card)

  5. #5
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    Quote Originally Posted by Dyck15


    So to sum it up, you shouldnt have to worry about Refresh Rate with your LCD. 60Hz should work best.

    As for centering the image, you should be able to adjust that with the buttons on your monitor, or try the utility that came with your graphics driver (e.i. nView for an nVidia based card)
    Not sure what to try with nView... Ofcoarse i've tried the button options on the monitor but when certain programs are started (mainly games), centering is off until you manually set it. If you restart the system everything has to be done over again to get the same programs centered.

  6. #6
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    Try the proper driver from the monitor manufacturer. Sometimes things don't work right with the driver that xp uses.
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