On Fri, 14 Jul 2006 16:22:14 -0400 (EDT) Alan Stern wrote:

> On Fri, 14 Jul 2006, Robert Watkins wrote:
> 
> > I rebuilt 2.6.17.4 sans patch and still didn't get the "Cannot enable.."
> > messages. However removing the ehci-hcd module did. An unexpected
> > feature.
> 
> Yes, that would explain it.
> 
> Out of curiosity, what do you get if you do this:
> 
>       rmmod ehci-hcd
>       rmmod ohci-hcd
>       modprobe ohci-hcd
> 
> Does that just give the same sequence of repeating error messages?
> 
> > > I don't have any good ideas on what to do.  One possibility is to try 
> > > using a different extension cable.  Or instead of using an extension,
> > > get a USB hub.
> > 
> > I've re-tried an older style Belkin cable. There's no LED on it. 
> > Same results.
> > My PC normally live in a different room to the monitor and keyboard.
> > Its main use is as a MythTV, so it's nice to have the noisey beast out of
> > ear shot. I join 2 x 10' cables to get the USB connection though a wall and
> > the ceiling. Could I do that with a hub?
> 
> Oh dear.  Too bad you didn't mention this before.
> 
> There are limitations on how long a USB cable can be.  You may be up 
> against those limits.

Yes, it's 5 meters max between hubs.

> The way around the limits is to use a hub.  One cable from the computer to 
> the hub, one cable from the hub to the keyboard.  That way each cable is 
> safely within the length limit and you're okay.


---
~Randy


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