Red light in headphone jack?? (w/ a pic)

Discussion in 'MacBook Pro' started by AlphaDogg, Jan 22, 2011.

  1. AlphaDogg macrumors 68040

    AlphaDogg

    Joined:
    May 20, 2010
    Location:
    Boulder, CO
    #1
    Here is the situation:

    I had my 13" 2010 MBP setup at my desk. I also have speakers at my desk that are connected to my MBP with a 3.5mm audio cable. I was "un-docking" my MBP from my desk, unplugging every cable that is connected to it, so I can take it away from my desk. However, immediately after I "un-docked" it, I tried to watch a YouTube video. There was no audio coming out of the speakers. I thought "ok, I will just turn the volume up," so I did. I got a little icon that showed. It looked like this:
    [​IMG]

    So I thought "hey that's weird. I will just pop in some headphones. Maybe that will make it go away." So that is what I did. But I noticed something quite odd. There was a red light coming out of the headphone jack. I took a picture, and then plugged in headphones and took them out. The issue went away. But I still wondered what happened, what caused this to happen, and what it means.

    Here is the picture of the red light (I assume its an LED): [​IMG]
     
  2. AlphaDogg thread starter macrumors 68040

    AlphaDogg

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    May 20, 2010
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    Boulder, CO
  3. simsaladimbamba

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    Nov 28, 2010
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    located
    #4
    It does appear, my 2009 MBP had this happen some times,
     
  4. AlphaDogg thread starter macrumors 68040

    AlphaDogg

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    #5
    Well can someone tell me what optical audio is?
     
  5. Brdl04 macrumors regular

    Brdl04

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    Jan 22, 2011
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    #6
  6. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #7
    I didn't tell the OP not to post. I simply posted links to threads with information on the topic at hand. There's no way for anyone to know in advance if the OP has seen those or not.

    From the Forum Rules:
    Where's the help YOU offered?
     
  7. wordoflife macrumors 604

    wordoflife

    Joined:
    Jul 6, 2009
    #8
    I think it means that the port thought there was something in it, but it cleared itself when you replugged it.
     
  8. surfologist87 macrumors 6502

    Joined:
    Aug 19, 2010
    #9
    Dude... you got an alien in there... :eek:

    Lol i want to make that come on all the time
     
  9. CW Jones macrumors 6502

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    Nov 24, 2009
    Location:
    CT
    #10
    haha and the score is now CGJ 1 opponent... 0

    The very last person in one of those threads said Apple told them to stick a toothpick in it and move it around till it goes off.... Kinda odd but might be worth a shot? Also I would say putting a jack in and out a few times might fix it as well. Just some thoughts.
     
  10. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #11
    Optical Audio: digital audio signals transferred via an optical connection, often transmitted via TOSLINK or S/PDIF.
     
  11. AlphaDogg thread starter macrumors 68040

    AlphaDogg

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    May 20, 2010
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    Boulder, CO
    #12
    Thank you. Is TOSLINK and S/PDIF like a fiber optic thing?
     
  12. simsaladimbamba

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    #13
    Yep.
     
  13. Queen of Spades macrumors 68030

    Queen of Spades

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    The Iron Throne
    #14
    It happened on my 2010 MBP - the same fix worked. I plugged in a set of headphones and when I pulled them out it was fixed.
     

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