linux-kernel - Re: Lacie Mobile Disk 250 GB USB 2.0 not recognized by my computer

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Date:	Wed, 11 Nov 2009 15:18:53 -0600
From:	Robert Hancock <hancockrwd@...il.com>
To:	Michel <michel.linux@....fr>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Lacie Mobile Disk 250 GB USB 2.0 not recognized by my computer

On 11/11/2009 02:45 PM, Michel wrote:
> Hi,
>
> i'm in great trouble,
>
> i bought a "Lacie Mobile Disk 250 GB USB 2.0 HI-speed", but it seems not
> recognized by my computer.
> The device seems locked when i connect it to a USB port, the diode blue
> light remains on,
> and i can hear a litttle "tick" every second near the disk, i didn't
> heard the disk turning. feels like it is blocked.
> - dmesg displays nothing before and after plug-in the device
> - the scan of the connected usb port by usbmon reports nothing at all.

If there's really no output at all then it sounds like the USB 
controller isn't even detecting the device. Maybe it's drawing more 
power than the motherboard wants to provide and can't initialize 
properly? Have you tried a different USB port?
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