lkml.org 
[lkml]   [2005]   [Jul]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Weird USB errors on HD
On Tue, Jul 19, 2005 at 12:47:32PM -0400, Karim Yaghmour wrote:
>
> I have a usb-attached HD that I use from time to time. When it's connected
> to my desktop through a hub it works flawlessly. When connected to my Dell
> D600 Laptop, however, it sometimes randomly exhibits a loud click (as if the
> heads went berzerk) and the device goes unrecognized (i.e. the USB layer drops
> the device and then redetects it again; meanwhile there is FS corruption.)
>
> The same behavior happens with 2.4.x and 2.6.x
>
> In /var/log/messages I see something like:
> hub 3-0:1.0: over-current change on port 1
> hub 1-0:1.0: over-current change on port 3
> ...
> usb 1-3: USB disconnect, address 2
> usb 1-3: new high speed USB device using ehci_hcd and address 3

Ugh, you have a bad device or power supply, or aren't giving it enough
power to drive the thing. Nothing we can do in Linux for that, sorry.
Buy a wall-powered usb hub, that usually helps.

Good luck,

greg k-h
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-07-19 21:32    [W:0.108 / U:0.248 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site