Describe My Setup
Roon Rock (OPS: Version 1.0 (build 158) stable; Server: Version 1.4 (build 298) stable)
Device: NUC7i5BNH
M.2: Transcend TE 850 120GB
Storage: WD MyBook 4T Attached to the NUC
Raspberry Pi 3 Model B Board
Software for Pi: Ropieee 20180520-2
AudioOutput: Benchmark HDR1 USB DAC (connected either directly to the NUC or to the Pi via USB)
Describe the Issue
I can see the Benchmark DAC in audio setting. But when I press the enable button, it just says “Enabling” without Roon making the USB audio output available. The same occurs whether I have the DAC connected either directly via USB to the NUC or to the Raspberry Pi3.
I would also add that I am able to obtain audio output from Roon to my tablet and to a Squeezebox 3.
(Note: I tried to upload some screenshots of the USB stuck in “enabling mode”, but got an error: “uninitialized constant EXIFR::JPEG”)
Do you have a Windows or MacOS computer in the house that you can try with Roon as well? This will help us determine if this issue is caused by a specific interaction of the DAC and operating system or with Roon itself.
Thanks John. I followed up on your suggestion. It seems to have been a temporary glitch associated with the software, as I explain below.
I installed Roon on a Windows 10 machine and switched the Core to that machine from the NUC. All audio outputs were working fine, including a S/Pdif to the Benchmark DAC. From the Roon Core on the Windows machine, I was also able to send the audio output to the Benchmark USB input on the using Roon Rock on the NUC.
And then to my surprise, when I switched the core back to the NUC, the USB audio output to the Benchmark DAC was now working fine. It was no longer hanging in Enabling mode. The same when the DAC was connected to the Raspberry Pi via USB.
I would also add that the initial problems seems to have been more general than I first thought. The analog headphone audio output from the NUC was hanging in Enabling mode (with headphones plugged in).
In any case, the problem seems to have disappeared.