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    R40 built-in mic buzzing

    Discussion in 'Lenovo' started by osxdude, Aug 9, 2011.

  1. osxdude

    osxdude Newbie

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    I have a good-ol' IBM ThinkPad R40 (type 2723) and as long as I can remember, (I've had this laptop for a very long time) the microphone has had a 60Hz buzzing noise whenever plugged in. The noise goes away entirely when I touch something metal on the laptop, like VGA port or the metal around the Ethernet and modem, as well as a USB cable connected, AND when I put my hand near the microphone. It also goes away when the laptop is unplugged :p

    I'm pretty sure it's an issue with grounding, as I've heard it in every OS I've tried. (It seems to lessen under Ubuntu, however) What can I do to stop this terrible buzz?
     
    osxdude, Aug 9, 2011
    #1