Comment 61 for bug 1018020

HI

Running a Logitech, Inc. Webcam C310 on latest Quantal mainline kernel.

I see lots of " cannot set freq 48000 to ep 0x86" in log
Also microphone on cam stops working intermittently
Behaviour was identical in Precise.

I found that a workaround for this that works (mostly) is to keep camera unpluged during boot or "wake from suspend" and repluging it in after boot.

owever this is not a surefire fix as I have seen it "triggred" random.

Unplugging and replugging the Cam helps, but tends to crash things like skype

This seems to be issue that occurs widely .
There are several references that claim that this is due to something in snd-usb-audio going wrong see here for one:
https://bugzilla.redhat.com/show_bug.cgi?id=663583

Here is a claimed workaround:
http://www.techytalk.info/logitech-e3500-webcam-and-cannot-set-freq-16000-to-ep-0x86/

I will try it...