"BillW50" <BillW50@aol.kom> wrote in message
news:465167c9$0$18534$834e42db@reader.greatnowhere .com...
> "M.I.5¾" <no.one@no.where.NO_SPAM.co.uk> wrote in message
> news:465145c7$1_1@glkas0286.greenlnk.net
>> "BillW50" <BillW50@aol.kom> wrote in message
>> news:464f4afc$0$18537$834e42db@reader.greatnowhere .com...
>>> I see an error message if I use the USB webcam and the USB TV tuner
>>> card at the same time. Although it only flashes for a half of a
>>> second when I plug the last one in and then both are operating just
>>> fine. I don't use them on a hub, but rather my laptop has 4 built in
>>> USB ports. I would never purchase a laptop without at least 4 USB
>>> ports on it. :)
>>
>> Hmm. I can only assume that the port is flagging the problem to the
>> host and then recovering to operate normally. If it is not
>> inconveniencing normal operation, then just ignore it.
>
> I think of it is both the webcam and the TV tuner uses the max 500ma. And
> when you first plug them in, there is a surge which probably hits it over
> 500ma sometimes. Thus the problem is flagged just for a split second. But
> then it instantly recovers.
>

The USB specification requires a port to cater for this situation, but it
just might be that your combination is marginal.