Eric on 7 Jul 2008 20:20:36 -0700

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Re: [PLUG] USB Hub Blocks Web Cam

Could the problem be cable length or power requirements?  Is it a powered hub?
I'd try shorter cables or external power in the hub.

I once fought for several hours with a HP Scanner that ended up being very 
sensitive to cable length (shorter worked, longer was erratic.)



Casey Bralla wrote:
> Here's a weird one I don't understand.  Maybe somebody can help me understand
> what is going on.
> I've been goofing around with a Logitech QuckCam I got a while ago "free" from
> comcast.   It's well supported by Linux, although anything but great image
> quality.
> Anyway,the darn thing wouldn't work and I finally figured out that it was
> because it was being hooked up through a USB hub.   If I plugged it directly
> into my computer, it worked fine (well, as good as it ever would).  If I
> plugged it into a hub, it would not produce an image.
> lsusb sees it through the hub, but I couldn't get xawtv to pull an image from
> it.
> I duplicated the problem with another hub, and got the same result.  One of
> the hubs was powered, one was static.
> Can anybody explain this?  I'd like to use it through a hub (much cleaner
> wiring), but I don't even know what type of hub (if any) I should buy to make
> it work.
> Any comments, prognostications, disertations, or suggestions would be very
> much appreciated.

#  Eric Lucas
#                "Oh, I have slipped the surly bond of earth
#                 And danced the skies on laughter-silvered wings...
#                                        -- John Gillespie Magee Jr
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