No Sound on Powerbook 12"

Discussion in 'PowerPC Macs' started by markintosh, Jan 9, 2008.

  1. markintosh
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    macrumors member

    Jul 4, 2004
    2 Days ago the sound just stopped working on my 12" 1.5Ghz Powerbook.
    Has worked fine since the day I got it. No problems when upgrading to Leopard, it just quit out of the blue.

    When I use the volume keys on the keyboard, I see an icon that looks like the circle with the line through it. I check in sounds in the System Preferences and it states that there is not an output device. The system profiles shows the sound card.

    Any ideas anyone?
  2. iSaint
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    macrumors 603


    May 26, 2004
    South Mississippi y'all, near the water!
    This happened on my 15" Powerbook after a Leopard install. A simple restart fixed it. I know there have been a couple of other G4 users on MacRumors that have resolved same issue this way.
  3. saxman
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    macrumors 6502

    May 13, 2004
    Have you plugged headphones or external speakers into it recently? A few times on my PB when I unplug it, it still thinks I have and external speaker hooked up. I have to plug in the speakers and then unplug them again.

    I haven't done much experimentation on why this happens, but it's happened to me about 3 times and plugging speakers in then unplugging them have worked. Maybe I just have a wonky port
  4. markintosh
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    thread starter macrumors member

    Jul 4, 2004

    Thanks for the advice everyone!
    Resetting the PMU worked. (Just glad I don't have to reinstall the OS - I'm used to doing that as an old Windows user :rolleyes:)

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