Audio Line out suddenly dead?

Discussion in 'Mac Pro' started by Loa, Nov 30, 2012.

  1. Loa macrumors 65816

    Loa

    Joined:
    May 5, 2003
    Location:
    Québec
    #1
    Hello,

    After messing around with a few GPU cards and installing Windows on one of the internal drives of my 2009MP, the audio line-out is dead. Nothing. At one point it was even absent from the selections in the Audio System Pref. Now it's back, but sound will not come out of the speakers, regardless of the source.

    The GPU I'm currently using, and have ben for months with no audio issues, is a HD 6870, with a DVi to HDMI cable for my tv, and the mini displayport for my cinema display.

    Thanks for any help!

    Loa
     
  2. El Awesome macrumors 6502

    El Awesome

    Joined:
    Jul 21, 2012
    Location:
    Zurich
    #2
    Had something similar on my MacBook.

    Do a SMC reset and a PRAM reset, that should help.
     
  3. Loa thread starter macrumors 65816

    Loa

    Joined:
    May 5, 2003
    Location:
    Québec
    #3
    Hello,

    That did it!

    I'm so used to these steps not working that I didn't even think of doing them.

    Thanks

    Loa
     
  4. El Awesome macrumors 6502

    El Awesome

    Joined:
    Jul 21, 2012
    Location:
    Zurich
    #4
    When I had that on my MacBook I was sure that was a hardware problem, and I started cleaning the whole Macbook. Pretty pissed that it still didn't work, I made the usual software-troubleshooting and I was very surprised that after the resets I got it working again ;)
     

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