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Q: Logic Pro 9 and OS X Yosemite in conflict with M-Audio Blackbox interface

I am using Logic Pro version 9. I recently upgrade to OS X 10.10.2 Yosemite software. Now, my M-Audio BlackBox interface is not recognized by the new OS system. Can someone suggest a fix for this? Thanks.

Logic Pro, OS X Yosemite (10.10.2)

Posted on Mar 11, 2015 4:37 PM

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Q: Logic Pro 9 and OS X Yosemite in conflict with M-Audio Blackbox interface

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  • by Pancenter,

    Pancenter Pancenter Mar 11, 2015 7:55 PM in response to CS36T
    Level 6 (9,923 points)
    Audio
    Mar 11, 2015 7:55 PM in response to CS36T

    Is that unit bus powered or does it have it's own power supply?

  • by Felix1988,

    Felix1988 Felix1988 Jun 17, 2015 12:10 PM in response to CS36T
    Level 1 (0 points)
    Jun 17, 2015 12:10 PM in response to CS36T

    I just got the problem that after upgrading to Yosemite my M-Audio BlackBox interface worked not anymore. So I looked around and saw that Apple introduced a new mechanism called "kext signing" in Yosemite, which prevents the system from executing not authorized kexts and due the fact that the driver (kext) of my audio interface is a little bit older, it isn't signed at all. So for me worked disabling the mechanism by executing the following command on the terminal:

     

    sudo nvram boot-args=kext-dev-mode=1

     

    The command for reenabling it again is:

     

    sudo nvram -d boot-args

     

    But by disabling it, you should be careful to only install drivers from sources that you trust!

  • by BenB,

    BenB BenB Jun 17, 2015 1:16 PM in response to Felix1988
    Level 6 (9,886 points)
    Audio
    Jun 17, 2015 1:16 PM in response to Felix1988

    Or just install the new Yosemite drivers for that I/O unit.  That said, the Black Box is a discontinued model, and M-Audio isn't updating drivers anymore.  So when that driver dies, it dies.

    http://www.m-audio.com/support/drivers