Fast Track C400: No sound after switching USB Ports

[shotar]

Hey,
when I connect my C400 on the USB Port in my Thunderbolt Display it is not working (Control Panel says it is connected and Streaming, but there is no sound). When I connect it on one of my USB Port directly at my MacBook Pro it works fine.

Strange... because it was already working connected to my Thunderbolt Display some weeks ago. It think it isn't working since I disconnected my MacBook from my Display one time and reconnected it.

Latest drivers installed (v1.2)

Any idea?

[mesaone]

Have you restarted after plugging it into your display?

[YYR123]

.....and or trashed your prefs?

[mesaone]

Originally Posted by YYR123

.....and or trashed your prefs?

I doubt this is a pro tools issue, I think it has to do with the audio interface driver and/or coreaudio not recognizing something.

[shotar]

yes, i think this is a Mac problem. The vu-meter in the Control Panel shows also no activity when i play music.

any ideas where i find something about it? I'm using OS X 10.9

[mesaone]

And you've already installed the 1.2 drivers from here, then? And you're using Pro Tools 11.0.3? http://avid.force.com/pkb/articles/d...k-C400-Drivers

[shotar]

yes, 1.2 is installed. i never installed pro tools.

[Mcflyaudio]

Hi, same problem. Start fast track c400. Then go to utility and then processor activity. There is a launchdeamon from m audio that doesn't start. I think it needs a mavericks update. My 2e mac with mavericks the m audio works.

[Mcflyaudio]