It works in Ekiga... poorly.
But not in Kopete, or Camorama.
Perhaps it's a configuration issue, and it would otherwise work fine. By unsupported I vaguely meant that Logitech hasn't developed Linux drivers for the camera. Any supporting drivers would be third-party.

In any case, the issue stands. It begins to heat up from the moment Ubuntu is booted. I'd like to unplug it, but since this is a laptop, any unplugging will have to be software-based. Any idea how to do that? Prevent Ubuntu from acknowledging a USB device in any manner. I suppose this is the amateur's solution.