Flashing red light in Audio Port.

Discussion in 'MacBook Pro' started by 0000757, Jan 15, 2012.

  1. 0000757 macrumors 68040

    Dec 16, 2011
    On my Late 2011 MacBook Pro 13", when I took out my headphones, I saw a red light flash briefly in the reflection of the jack plug-in thing. I'm probably over-reacting, but I do want to be on the safe side. Is this bad at all? What does that red light mean?
  2. snaky69 macrumors 603

    Mar 14, 2008
    Means you accidentally tripped the little sensor for optical audio. As you may or may not know the MBP is capable of transmitting sound through optical out(fiber optics, S/PDIF, toslink, ADAT, call it what you want). That red light you saw was simply your sound card thinking it had such a cable put in for a moment.
  3. 0000757 thread starter macrumors 68040

    Dec 16, 2011
    OK! Thanks! For a minute I was worried!

Share This Page