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Thread: LCD making noise when connected to laptop.

  1. #1
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    LCD making noise when connected to laptop.

    Hi, i was just wondering what the best plan of attack was for this problem, i've got my new 15" BenQ lcd grounded via a screw in the back of the case and that cured most of the noise bar some slight inverter noise, but when i disconnect the monitor cable from the laptop the noise stops, i was wondering how i should go about fixing this, can i just cut the ground wire in the cable or will this cause problems.


    Thanks
    Damien

  2. #2
    I'm sorry, and you are....? frodobaggins's Avatar
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    since laptops are hard to ground, I propose this:

    try to somehow ground the outside of the vga connector....which connects to the laptop...which should ground the laptop..

    might work
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  3. #3
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    Hrmm, well my laptop is grounded from the serial connecter, i've tryed grounding the whole lot from the outside of the vga connecter and still get noise, the only way i can get rid of the noise is to ground the laptop from serial connecter - car and the lcd from a screw in the back of it to same spot on car and not have the vga cable connected.


    Thanks
    Damien

  4. #4
    Maximum Bitrate gizmomkr's Avatar
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    What happens when the laptop is running off bettery ?

    Buy the radioshack DC-DC converter. ditch the inverter
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  5. #5
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    sorry, should have explained better. I broke my laptop's lcd screen so i pulled it off and turned it into a carputa, i've just bought a benq 15" lcd screen to connect to my laptops vga out...

    <edit> without the inverter how would i power the lcd
    Thanks
    Damien

  6. #6
    I'm sorry, and you are....? frodobaggins's Avatar
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    Quote Originally Posted by jabba
    <edit> without the inverter how would i power the lcd
    Thanks
    Damien

    with 12v....bet the power brick puts out 12v, I bet, I bet, I bet !
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  7. #7
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    no power brick..... just the normal computer power cord straight into the monitor, id have to pull it apart to trackdown somthing like that... Is there any guides to doing it?


    Thanks
    Damien

  8. #8
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    power brick is most likely to put out 19v. some laptops may charge from 12v, but most ive seen are 19v.

  9. #9
    It ain't easy being a green moderator meddler's Avatar
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    way to revive a 4 year old thread.
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