El Capitan may have killed my Firewire port

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Level 1

6 points

El Capitan may have killed my Firewire port

This past week I upgraded my studio computer (2012 Mac Book Pro) to El Capitan but when I reconnected my audio interface (Focusrite Saffire 40 - http://us.focusrite.com/firewire-audio-interfaces/saffire-pro-40) the firewire port doesn't seem to pick up the audio interface. The audio interface is not being recognized by the OS. I didn't see the interface in the Audio/Midi area, I ran the audio interface's software and it is recognizing that the Saffire 40 is connected. I'm at my witt's end because I have a client coming in for a recording session within the coming week and I can't seem to solve the problem. Is there a problem with El Capitan that cause the firewire to not be recognized? Prior to upgrading the system was working perfectly. HELP!!!!!

MacBook Pro (13-inch Mid 2012), OS X El Capitan (10.11)

Posted on Nov 23, 2015 11:05 AM

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Answer 1

Nov 23, 2015 11:59 AM in response to prophessor

El Capitan enforces a much stricter kext-signing policy than any previous Mac OS X. Improperly-signed kernel extensions are Not loaded, and this can cause problems. Check with your Vendor for an updated driver.

Non-Apple drivers are found in this location:

/Library/Extensions

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Answer 2

prophessor Author

Level 1

6 points

Nov 23, 2015 12:05 PM in response to Grant Bennet-Alder

Thanks a lot. I also searched around and found that I may have to go in and delete the two preference files in Mac HD > Library > Preference > Audio along with the "com.apple.audiomidisetup.plist (if it exist). After doing this I will need to empty the trash and install the Saffire Mix Control 3.6.

Hopefully this will work; I'm currently at work and will try when I get home tonight (have to pay for my expensive hobby of having a recording studio for music production).

Once again, thanks for your reply.

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Answer 3

prophessor Author

Level 1

6 points

Nov 24, 2015 5:30 AM in response to prophessor

To let others know, I was able to solve my problem. Focusrite's website provided a program to uninstall all components of it's Saffire 40 software from the Mac Book and I reinstalled the Saffire Mix Control 3.6 and upgraded the Saffire 40 firmware. Now my audio interface and Mac Book Pro works great together.

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Answer 4

Mar 10, 2016 4:16 AM in response to prophessor

I'm having exactly the same issue with my saffire pro 24. Could you link to where the program to uninstall all components and firmware update is on the Focusrite site please? I can't seem to find it. Much appreciated 🙂

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