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  1. #1
    10.7.3 upgrade killed my audio...
    kbalch's Avatar
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    Apr 11, 2008
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    Specs:
    24" iMac, 2.8GHz, 500GB, 4GB
    10.7.3 upgrade killed my audio...
    I just upgraded from 10.7.2 to 10.7.3 today via the combo update and have lost all audio. I'm not getting any sound from either the built-in speakers, my speaker system, or my headphones.

    The Sound pref pane doesn't show any options other than 'Digital Out', my task bar volume slider is grayed out, and my keyboard shortcut volume controls are also non-functional.

    I've reset the PRAM to no effect.

    Any other ideas, or is my volume toast until Apple addresses this with the next incremental release?

    Thanks for any and all assistance!

    Regards,
    Ken
    www.kenbalch.com
    ----------------------------------
    My project's blog:
    1969TriumphT120R.com

  2. #2
    10.7.3 upgrade killed my audio...
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
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    45,252
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, Yosemite
    Did you backup before applying the update? No? If not, boot to your Recovery partition and reinstall Lion. The Lion reinstall will do an automatic archive and install. Let's see if that fixes it.

  3. #3
    10.7.3 upgrade killed my audio...
    Lifeisabeach's Avatar
    Member Since
    Sep 30, 2007
    Location
    The Republic of Neptune
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    7,637
    I would simply try re-applying the update for the moment. If that doesn't work, we can try digging further.

    Please verify and include the exact model/year of your Mac and OS X version number (available from "About This Mac", then "More Info" on the Apple menu).
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  4. #4
    10.7.3 upgrade killed my audio...
    rman's Avatar
    Member Since
    Dec 24, 2002
    Location
    Los Angeles, California
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    12,584
    Specs:
    2 x 3.0GHz Quad-Core, 6GB OS X 10.6.8 | 15in MacBook Pro 2.2GHz OS X 10.6.8 | 64GB iPad 2 WiFi
    Cool
    I would download and re-install the combo update. If that does not resolve it I would do what chscag suggested.
    Life isn't about waiting for the storm to pass, It's about learning to dance in the rain!

  5. #5
    10.7.3 upgrade killed my audio...
    kbalch's Avatar
    Member Since
    Apr 11, 2008
    Posts
    102
    Specs:
    24" iMac, 2.8GHz, 500GB, 4GB
    Thanks, guys.

    Yes, I did have a current backup (via Time Machine). Rather than just return to 10.7.2, I reinstalled from the 10.7.3 combo updater. No change.

    I then repaired permissions from Disk Utility. No change.

    I then unplugged my external speakers and rebooted. That (possibly in combination with one or both of the other fixes tried) has solved the problem. All of my volume controls are back and, when I plug my speakers and/or headphones back in, everything works as it should.

    Thanks for the suggestions, guys; I really appreciate the help! :-)

    Ken
    www.kenbalch.com
    ----------------------------------
    My project's blog:
    1969TriumphT120R.com

  6. #6
    10.7.3 upgrade killed my audio...

    Member Since
    Sep 10, 2011
    Location
    Colne,UK
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    1,737
    Specs:
    iMac 27" Mid 2010, 3.2GHz Intel Core i3,12GB 1333 MHz DDR3, ATI Radeon HD5670 512MB, Yose 10.10.5
    Quote Originally Posted by kbalch View Post
    Thanks, guys.

    Yes, I did have a current backup (via Time Machine). Rather than just return to 10.7.2, I reinstalled from the 10.7.3 combo updater. No change.

    I then repaired permissions from Disk Utility. No change.

    I then unplugged my external speakers and rebooted. That (possibly in combination with one or both of the other fixes tried) has solved the problem. All of my volume controls are back and, when I plug my speakers and/or headphones back in, everything works as it should.

    Thanks for the suggestions, guys; I really appreciate the help! :-)

    Ken
    I would hazard a guess that the internals of the speaker socket are operating as a latching switch and that it needs to be reset which is what you did when you removed the jack from the externals.
    iMac 27-inch Mid 2010 (wow....that old...eeeks!), WD My Book 1TB Firewire,WD My Passport Air 500GB, Magic Mouse,Magic Trackpad,
    iPhone 5C, iPod Nano 4GB 3rd Gen, ATV2.
    MOTM October 2012. These days normally happy with an occasional grumble.

  7. #7
    10.7.3 upgrade killed my audio...
    kbalch's Avatar
    Member Since
    Apr 11, 2008
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    Specs:
    24" iMac, 2.8GHz, 500GB, 4GB
    Quote Originally Posted by pendlewitch View Post
    I would hazard a guess that the internals of the speaker socket are operating as a latching switch and that it needs to be reset which is what you did when you removed the jack from the externals.
    Sounds reasonable to me. I wonder what it was about the OS upgrade that triggered the problem? I suppose it could simply be a temporal coincidence, but that strains credulity. Mine, at least. :-)

    Ken
    www.kenbalch.com
    ----------------------------------
    My project's blog:
    1969TriumphT120R.com

  8. #8
    10.7.3 upgrade killed my audio...

    Member Since
    Sep 10, 2011
    Location
    Colne,UK
    Posts
    1,737
    Specs:
    iMac 27" Mid 2010, 3.2GHz Intel Core i3,12GB 1333 MHz DDR3, ATI Radeon HD5670 512MB, Yose 10.10.5
    Quote Originally Posted by kbalch View Post
    Sounds reasonable to me. I wonder what it was about the OS upgrade that triggered the problem? I suppose it could simply be a temporal coincidence, but that strains credulity. Mine, at least. :-)

    Ken
    Hi Ken,
    I can't be certain but my guess is that the contacts in the jack socket have normally closed switches connected to them. Plug in a jack and the switches will open, shutting off the audio to the internal speakers. Conflict could have occurred during the power interrupt/restart regime.
    iMac 27-inch Mid 2010 (wow....that old...eeeks!), WD My Book 1TB Firewire,WD My Passport Air 500GB, Magic Mouse,Magic Trackpad,
    iPhone 5C, iPod Nano 4GB 3rd Gen, ATV2.
    MOTM October 2012. These days normally happy with an occasional grumble.

  9. #9
    10.7.3 upgrade killed my audio...
    kbalch's Avatar
    Member Since
    Apr 11, 2008
    Posts
    102
    Specs:
    24" iMac, 2.8GHz, 500GB, 4GB
    Makes sense. I'll buy it. :-)

    Ken
    www.kenbalch.com
    ----------------------------------
    My project's blog:
    1969TriumphT120R.com

  10. #10
    10.7.3 upgrade killed my audio...

    Member Since
    Sep 10, 2011
    Location
    Colne,UK
    Posts
    1,737
    Specs:
    iMac 27" Mid 2010, 3.2GHz Intel Core i3,12GB 1333 MHz DDR3, ATI Radeon HD5670 512MB, Yose 10.10.5
    Ha..cheers
    iMac 27-inch Mid 2010 (wow....that old...eeeks!), WD My Book 1TB Firewire,WD My Passport Air 500GB, Magic Mouse,Magic Trackpad,
    iPhone 5C, iPod Nano 4GB 3rd Gen, ATV2.
    MOTM October 2012. These days normally happy with an occasional grumble.

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