USB Midi devices not recognised

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Level 1

4 points

USB Midi devices not recognised

Maybe someone can help.

I have recently lost use of midi devices on my mid 2012 macbook Pro. OS 10.8.5 is installed. They are powered over USB and register in system profiler, but are not recognised by AudioMidi setup.

Also my iphone 5 will charge but is no longer recognised.

My RME Babyface Pro (USB Audio and Class Compliant mIdi) will run audio, but is not recognised as a midi device in AudioMidi setup.

Since I have had the machine, the rear USB port (nearest the screen) would run a USB 3 HD but not USB 2 devices. The near port would run anything, until recently.

My ilok 2 has never been recognised.

Currently, USB 2 devices such as thumb drives, hard drives, audio interfaces (audio only), work on the near port, and only USB 3 devices work on the rear port. No midi devices or the iphone are recognised.

I have tried solutions such as, swapping cables, confirming devices work on other computers, removing Midi Drivers from Library, trashing audio prefs from user/Library, SMC reset, PRAM reset, trashing and creating new profiles in AudioMidi setup.

I will shortly try a powered USB 2.0 hub.

Any ideas would be much appreciated.

Message was edited by: matt eaton - additional info

Logic Pro, OS X Mountain Lion (10.8.5), Macbook Pro mid-2012

Posted on Sep 14, 2016 5:35 AM

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Answer 1

matt eaton Author

Level 1

4 points

Sep 15, 2016 2:50 AM in response to matt eaton

As a follow up -

The powered USB Hub made no difference ( and is not recognised on the rear USB port)

I installed OS 10.8.5 over the top of the existing OS 10.8.5 using Disk Recovery.

USB midi devices are now working as expected and, for the first time, my ilok 2 is recognised. Both only on one port.

That's good enough for work to proceed as normal.

I have migrated my setup between systems many times over the past 4 years. I expect that a clean install will preempt further problems.

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