no audio through speakers - headphones ok

Discussion in 'MacBook Pro' started by puckhead193, Nov 2, 2010.

  1. puckhead193 macrumors G3

    puckhead193

    Joined:
    May 25, 2004
    Location:
    NY
    #1
    I was editing a project in FCP using headphones (klisph s4i) and i wanted to show the client the edit. When I unplugged my headphones I didn't get audio. I tried putting the volume up on the keyboard but it is grayed out. It is also grayed out on my menu bar. Coming out of the headphone jack is a red light. As soon as I plug my headphones back in, itunes open up and I get my audio. Any ideas whats going on?
     
  2. aimbdd macrumors 6502a

    Joined:
    Dec 10, 2008
    Location:
    East Cost
    #2
    It got turned on as an audio input. Try plugging in fully then out a couple times.
     
  3. mulo macrumors 68020

    mulo

    Joined:
    Aug 22, 2010
    Location:
    Behind you
    #3
    could be a kext thats messing up. does it recognize your speakers as a sound output device?
     
  4. Inside_line macrumors regular

    Joined:
    Jun 21, 2005
    Location:
    U.S.A.
    #4
    I think the audio hardware is buggered on these i5,i7 MBP.
     
  5. Fubar1977 macrumors 6502a

    Fubar1977

    Joined:
    Jul 30, 2010
    Location:
    North Yorkshire, UK
    #5
    Check to see if there`s a red light showing inside the audio jack. There`s a known issue where the "pin" telling the Mac that there`s a optical input gets stuck which disables analogue output and internal speakers.

    Often plugging/unplugging a normal audio connector a few frees it off, proceed with caution though.
    Ultimately may require repair if this is the case.

    Just a thought.

    Just re-read your post properly, and you already said you had a red light showing so this IS the issue.
     
  6. aimbdd macrumors 6502a

    Joined:
    Dec 10, 2008
    Location:
    East Cost
    #6
    exactly what i said but more explanation :p
     
  7. puckhead193 thread starter macrumors G3

    puckhead193

    Joined:
    May 25, 2004
    Location:
    NY
    #7
    i unplugged normal headphones a few times, but that didn't solve the problem. I had to reboot and it seems normal now... :rolleyes:
    Thanks for the imput everyone. I really did not want to drive to apple today. :)
     

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