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Article #1471

Re: Help for USB hub and Webcam issue

#1471
From: chris_smith
Date: Thu, 27 Sep 2001 18:31
127 lines
5320 bytes
It is actually a "static problem" which was causing the problem. It is
documented
on microsoft's website. A smalll static spark occurs and can knowck out
some USB devices. There is no Fix for Win98 but there is a fix for
Win 98 SE.

I went to using ethernet for my cable modem connection and now the webcam
works again
plugged straight into the USB.

"George Zent" <gjzent@applecapital.net> wrote in message
news:q2l5rtokddgkp74odfomohjmugimt79vds@4ax.com...
> On Tue, 25 Sep 2001 19:48:24 +0100, "chris_smith"
> <chris_smith@ntlworld.com> wrote:
>
> >
> >"Hornet" <hornet@roadrunner.net> wrote in message
> >news:fOSr7.47705$B92.817400@news.easynews.com...
> >> Do you know what type of chipset your motherboard uses? Possibly VIA?
Are
> >> you using an AMD processor?
> >>
> >> Just a thought as these and other non Intel chipsets can cause major
> >> headaches when using USB. Here is a good place to start
troubleshooting-
> >>
> >> http://www.usbman.com/
> >>
> >>
> >>
> >
> >Well unfortunately I know about the via problem. This is a IBM Thinkpad
770X
> >and has an
> >Intel processor and the Universal Host Controller entry under system is
> >Intel 82371AB/EB
> >PCI to USB.
> >
> >The device I am using works perfectly when I have it plugged straight
into
> >the USB port on
> >the system. It always fails when I have the hub plugged.
> >
>
> My USB DSL Modem does the same thing.  If it's on the system direct it
> works fine.  Plug it into the HUB and nothing at all on the DSL....
> Fortunately I have 4 ports on my system so I can have everything
> direct to the system.
>
> One question......  Is the Belkin a Self-Powered hub?  My DSL Modem
> uses the full 500 MA the USB line can give.  If you have another
> device on the same USB Channel using SYSTEM power, everything dies
> because there isn't enough power.  Plug the Camera direct to the
> system and everything else to the hub.  That's what I ended up having
> to do before I got the 4 channel USB connector.  FYI  I have an AZZA
> Athlon T-bird MoBo
>
>
> >I have uninstalled and re-installed all drivers and noted the following
> >stange thing happening:
> >
> >Uninstall drivers for webcam then reboot, then plug webcam -> drivers are
> >installed for webcam then reboot
> >
> >Uninstall drivers for HUB, reboot then plug HUB --> drivers are installed
> >for hub, reboot
> >
> >Now boot up with HUB only and then plug webcam  in -> it installs drivers
> >again!
> >
> >Why does it do this? Does this give a clue?
> >
> >I am at a loss now.
> >
> >
> >Origial note attachment:
> >>Hi guys,
> >>
> >>I have a Webcam Plus model that I have been using for six months without
a
> >>problem.
> >>
> >>I recently decided to get cable. The cable uses my USB point so I needed
to
> >>get a USB hub.
> >>
> >>I tried a Belkin pocket hub which went fine and I could plug in the
cable
> >>and the webcam into it. However as soon as I tried to access the webcam
> >>when it was on the hub it would die. It would also kill the hub.
> >>
> >>I then called customer services who advised me that it was a bad hub. I
> >>changed it for the same model. Same thing happened.
> >>
> >>I changed it for another Belkin hub and it did the same.
> >>
> >>I have now a Soho hub and although the cam always comes up when plugged
I
> >>find it gets killed as soon as I try to access it (netmeeting, yahoo,
> >>dwyco.. whatever programs
> >>that use the cam will result in the cam dying - light just goes out).
> >>
> >>I am at a loss to why this is. When I go back to using the non hub
option
> >>with dial up access it works perfectly....!
> >>
> >>Help help help!!!!!
> >>
> >>Please someone help!!!
> >>
> >>Thanks guys....!
> >>
> >>.
> >>Now some more info.. I bought another USB cam...   this time a Logitech
> >cam.
> >>This cam
> >>does exactly the same. Works OK when directly plugged into my USB port
but
> >>dies
> >>on the USB hub....
> >
> >
> >
> >
> >
> >
>
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From: "chris_smith" <chris_smith@ntlworld.com>
Newsgroups: creative.misc
References: <obPr7.6401$KP.1205539@news2-win.server.ntlworld.com> <fOSr7.47705$B92.817400@news.easynews.com> <Ck4s7.3439$L4.747363@news6-win.server.ntlworld.com> <q2l5rtokddgkp74odfomohjmugimt79vds@4ax.com>
Subject: Re: Help for USB hub and Webcam issue
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