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I have a Samsung Series 7 NP700-Z5A, which has a dual-purpose mic/headphone jack.

In both Ubuntu 12.04 and Windows 7, whenever I plug in my headphones the internal mic goes completely dead. When the headphones aren't plugged in, the microphone is fine.

The hardware is Realtek HD audio and the driver version 6.0.1.6428 (on Windows, at least).

I have an inkling that it thinks my headphones are a microphone, but there seems to be no option (in either OS) to adjust this.

Why can't I use my laptop's internal microphone while my headphones are plugged in?

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I was able to fix the internal microphone in Realtek HD Audio Manager:

  1. Open Control Panel → Hardware and Sound → Realtek HD Audio Manager.

    Control Panel

  2. In Realtek Audio Manager, select "Device advanced settings" in the top right.

    Realtek HD Audio Manager

  3. Select "Separate all input jacks as independent devices" and click OK.

    (If you don't see an option to separate jacks, you may need to update your Realtek Audio drivers.)

    Device advanced settings

  4. Open Control Panel → Hardware and Sound → Sound → Recording

  5. Set your internal microphone as the default recording device.

    Recording devices

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  • Please do not post the same answer to multiple questions. If the same information really answers both questions, then one question (usually the newer one) should be closed as a duplicate of the other. You can indicate this by voting to close it as a duplicate or, if you don't have enough reputation for that, raise a flag to indicate that it's a duplicate. Otherwise tailor your answer to this question and don't just paste the same answer in multiple places.
    – DavidPostill
    Aug 10 '18 at 19:15
  • @DavidPostill My apologies. I will go back and raise duplicate flags to this question, as I cannot vote to close without an upvoted answer.
    – Stevoisiak
    Aug 10 '18 at 19:18
  • This should be the accepted answer.
    – nichen
    Jan 23 '21 at 14:35

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