20" Alu iMac wont detect optical cable

Discussion in 'iMac' started by bostik, Dec 9, 2007.

  1. bostik macrumors newbie

    Dec 9, 2007
    maybe one of you guys have some solution to my problem?

    I cant seem to get my optical output working on my new (few months old)
    20" iMac, optical input works fine, but when i connect the cable to "line-out"
    port the system detects it as "headphones"... :(

    running 10.5.1 all updates installed.
    everything else is working fine.
  2. jf8 macrumors regular

    Aug 8, 2007
    I use the optical out in Windows Vista. It is not detected automatically in the audio control panel (as plugging in a regular connection would), and so I have to manually switch individual applications or set the default to optical output.
  3. bostik thread starter macrumors newbie

    Dec 9, 2007
    problem is that i dont even get an option for optical/digital in the system..

    no red light and no sound.

    when i push the cable in it switches from "built in" to "headphones" in
    both "sound preferences" and "audio midi setup", and gives no option for optical/digital.
  4. Mindflux macrumors 68000


    Oct 20, 2007
    mine does the same thing when plugging in external speakers.

    I asked about it and nobody knew.
  5. jzajenius macrumors newbie

    Dec 6, 2007

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