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While watching the input volume meter from my webcam in pavucontrol, it maxes out with a short (100ms or so) cracking sound every ~3 seconds, independently of the ambient sound. How can I get rid of it?

Looks like this has already been reported, but the project was abandoned. I don't suppose it would help to bribe with a bounty? :)

$ lsusb | grep -i cam
Bus 002 Device 004: ID 046d:08ce Logitech, Inc. QuickCam Pro 5000

From the Linux UVC driver footnotes:

1 First and second generation Logitech webcams suffer from firmware bug which make the camera somehow unstable. As the issue is timing-related, the exact impact of the bug on a particular user can't be predicted. If you plan to buy a Logitech webcam, consider getting one of the models not affected by the bug. More information about the issue, including possible workarounds, are available on the QuickCam Team website.

2 Starting at version 2.6.22, the Linux kernel includes a USB audio bug fix which triggers a (possibly identical to the above) bug in first and second generation Logitech webcams. See the Linux UVC wiki for a workaround.

Both references are down, so I guess that's it for this camera.

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closed as too localized by bodhi.zazen, fossfreedom Feb 28 '12 at 16:05

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Looking at the bug report, unless this is resolved with a newer kernel, looks like a dead end. Can you try a newer kernel and report back ? –  bodhi.zazen Feb 28 '12 at 5:23

1 Answer 1

Apparently this is a firmware bug (see the bug report). Buying a new webcam seems the only solution.

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