I need help with an Schiit Yggy USB problem that surfaced last night. The Setup:
Mac Mini late 2012 2.6 GHz i7 Quad core 16G RAM OS X Mavericks 10.9.5 pointing at iTunes library on a WD 2T USB 3 drive. Mini outputs via a Multi-Output Device consisting of Yggy (USB 3 Port 2) and Audioquest Dragonfly (USB 3 Port 1). Remaining 3 USB 3 Ports cover my cd drive, a NEC monitor, and a USB 3 10 Port switch.
Main System: Mini>Wyrd>Yggy>Ragnarok>KEF LS50 over Straightwire USB cables.
Backup System: Mini>Dragonfly>Bose Companion 3 over Straightwire USB cables.
Music Players: Roon/Pure Music integer/direct modes or basic iTunes. Native sample rates.
Yggy is on separate non-switched power and runs 24/7 (per Mike Moffat!). Wyrd/Rag are controlled by separate switch and are turned on only for use.
Everything has been fine until last night when I was auditioning the Trial version of Audirvana 2.2.1 in Hog/SysOptimized mode to see if was the better player.
It wouldn’t run because it said something was hogging the output in spite of Roon/Pure Music not running at the same time although they had been used earlier that night. I opened Midi Audio Devices, deselected the Multi-Output Device, selected only the Schiit Audio Gen 3 Device, restarted the Wyrd/Rag to resynch, then Audirvanna played fine over both sound systems.
I then went to A-B the sound by switching back to the other players, but nothing played over the Yggy using Roon/PM/iTunes but each played fine over the Dragonfly. Restarting Wyrd/Rag and switching between the various audio drivers was fruitless.
Thinking that Audirvana somehow now was hogging everything, I proceeded to delete every trace of it by trashing the application itself and all library preference files and caches I could discover after a fairly exhaustive Google search.
Still a NO GO. For some reason, the Mini’s USB Ports 1 and 2 are now corrupted in the following fashion:
iTunes/Pure Music/Roon play out ALL USB Ports through Audioquest Dragonfly>Bose Setup. ALL other devices work okay in ALL ports. Rag digital optical input from a Sonos works fine, so Rag digital is okay.
iTunes/Pure Music/Roon WILL NOT play out USB Port 1 and 2 through Yggy>Ragnarok Setup but WILL play out USB Port 3-5.
This does not change no matter how many times I have tried to repair disk permissions, rebooted the Mini, reset PRAM and the SMC/PMU, switched the Yggy and Wyrd/Rag on/off, and I even left the Yggy unplugged overnight to see if that would help, but nothing works.
I’ve run USB from my MacBook Pro over the same Straightwire in Port 2 used to feed Yggy, and it works fine. So cabling is okay.
When I switch Sample Rates in MIDI Audio Device , the Yggy clicks appropriately and switches lights letting me know that it is seeing that rate change request appropriately, but still no music plays out of Yggy on Port 1 or 2 but does on Port 3-5.
So in short, the Rag, Dragonfly/Bose, and all connected peripherals work fine on ALL ports. Yggy works on Ports 3-5 but no longer works on Ports 1 and 2. And this all developed after running Audirvana in best quality mode. Deleting every piece of Audirvana I could locate made no difference.
Schiit support recommended booting into Mavericks from an external clean install drive to see if that corrected the problem. I tried it and successfully recovered Ports 1-2 to feed Yggy. However rebooting back into the Mini confirmed that these 2 ports still have the same problem, and neither feed the Yggy but again work with everything else.
So this implies the Mini's software has become corrupted somehow by the Audirvana install.
It’s as if the ghost of Audirvana is somehow not releasing those 2 ports that it was originally connected to, but then why only to Yggy but not Dragonfly? Does this make any sense? Is there still a piece of Audirvana somewhere I’ve missed?
I’m hoping you can help me out beyond “Well, if it’s all working okay now, don’t F with it!!!” I REALLY don't want to go through the hassle of a clean installation at this time and hope to obtain a fairly simple fix if possible. Let me know if you need any more info for consideration.
Thanks, DSNORD