I have read and it is my experience that external hard drives,
especially powered external hard drives, should be connected to their
own port. I think this is due to both power and data transfer rates.
Putting a hard drive on a hub with any other device will slow down the
transfer rate at best. Ideally, a powered USB device should be
connected directly. If powered devices, like printers and scanners,
must be connected d to a hub, it is better if it is a powered hub. Hubs
work best for devices like keyboards and mice.
*Don Marang*
Vinux Software Development Coordinator - vinuxproject.org
<http://www.vinuxproject.org/>
There is just so much stuff in the world that, to me, is devoid of any
real substance, value, and content that I just try to make sure that I
am working on things that matter.
-- Dean Kamen
On 8/5/2011 5:44 PM, Desiree Oudinot wrote:
Hi,
Well, I plugged the drive into my laptop and it recognized right away.
I formatted it on the laptop and now things seem to be working fine. I
now have both external drives plugged into the back of the computer.
Thank you guys for your help.
Now, I have a related question. The hub does have a power cord, but it
didn't start giving me trouble even when it wasn't plugged into the
wall until today when I tried to plug my headphones into it. I asked
this same question on another list and someone responded back by
saying that plugging an external drive and a pair of headphones into
the same hub is a bad idea. Why would that be? I thought the point of
a hub was so that you could plug multiple devices into it at once and
not have to worry.
On 8/5/11, Mike& Barbara In Arcadia<[email protected]> wrote:
Hi Desiree,
Is this USB Hub only plug into the computer to get its power or, is it a
powered USB Hub and plug into a wall outlet socket to have AC / 120 volt
power as well? If it is not a powered hub, the USB port might not be
providing enough power to the Hub to sufficiently run the external drive.
Have you tried plugging the 2nd external drive into a USB port by itself to
see if it will work that way? Hope you get this issue figured out! I know
just how frustrating it can be when things quit working for no explainable
reason. Take care.
Mike
----- Original Message -----
From: Desiree Oudinot
To: [email protected]
Sent: Friday, August 05, 2011 12:48 PM
Subject: Re: [Blind-Computing] what to do when USB devices won't recognize
I did try that with no luck. Thanks for the suggestion though.
On 8/5/11, David Goldfield<[email protected]> wrote:
> Hi.
> Have you tried unplugging the actual USB hub from your computer and then
> plugging it back in? Maybe if it rerecognizes the actual hub things may
> work properly.
>
> Just a thought ...
> David
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Desiree
Oudinot
> Sent: Friday, August 05, 2011 2:34 PM
> To: blind-computing
> Subject: [Blind-Computing] what to do when USB devices won't recognize
>
> I bought a 2tb Western Digital external hard drive yesterday. I had
another
> one, but I bought a second one for backup purposes. I had it connected
to
> the computer via a USB hub, and the old one connected to the back of the
> computer. I was copying files from one to the other.
> The folder was quite large so it was taking a very long time. People
started
> doing work outside my house so I then plugged my USB headphones into the
> hub. I have had problems with this hub ever since I got it in that often
> when you plug more than one device into it, it tends to not recognize
the
> new device. Of course I couldn't disconnect the hub, so I disconnected
the
> headphones, figuring I'd just turn up my speakers since it was loud
outside.
> Unfortunately, unplugging the headphones had an adverse effect. It also
> somehow stopped recognizing the external that I was copying files to.
Now I
> can't get it to recognize the drive at all. Once, when I plugged it in,
it
> said I needed to format the drive to continue, but I hit cancel and
> restarted the computer, hoping that it would just recognize again as I
had a
> similar problem before and that fixed it. But no--no matter where I plug
it
> into the computer now, it says the device has malfunctioned and Windows
does
> not recognize it. I then tried disabling and reenabling the driver, but
no
> go.
> I feel so stupid right about now, if I hadn't plugged in my headphones I
> wouldn't have broken my new device. I seriously hope there's a way to
fix
> this because I didn't buy it to break it if you know what I mean. I'm
> running Vista Home Premium if that makes a difference.
> Thanks in advance for any help you can give me.
>
> For answers to frequently asked questions about this list visit:
> http://www.jaws-users.com/help/
>
>
>
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