USB Mic Not Resuming Ubuntu 16.04
I've got a Logitech BRIO USB webcam (046d:085e) that mostly works wonderfully with my Ubuntu 16.04 desktop. Unfortunately, it's having some issues with the system suspend/resume that I don't know how to troubleshoot further.
Symptom:
On resume, the USB microphone interfaces appear in the "Input" tab of the Sound Settings, but it can't record audio from it and thus the volume meters don't move. Using the mic in Audacity causes it to hang.
What I do know and what I've already tried:
The interfaces appear in an "arecord -l", but they just seem to...do nothing. The device itself does appear in an lsusb, and all its interfaces appear present. I have tried an unbind/rebind on the driver. I've tried setting its "authorized" from 1 to 0 and back again. These sorts of "soft restart" of the device have not resolved the problem. I can confirm I'm doing them correctly because I see the interfaces disappear and reappear from an "arecord -l". Recording with arecord on the device produces a file full of 0s. I guess this means Audacity is stalling on something other than a read from the mic.
Only known workaround:
Unplugging and replugging the camera resolves the issue. Everything then works as expected...until the next suspend/resume.
What I'm hoping to find:
At a minimum, something that does a real, serious, just-like-
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