[ltp] A question about USB storage and ehci_hcd

[Joerg Platte]

Am Samstag, 5. Januar 2008 schrieb Dreamwander:
> Hello, all.
>
> I'm running Ubuntu linux 7.10 on a T40p.  The issue below occured also with
> Ubuntu 7.04.  I don't remember which kernel that was, but on this install i
> have (through Ubuntu devs) 2.6.22-14-generic and 2.6.24-2-generic.
>
> The problem seems fairly common across machines (it seems, though, to be
> heavily concentrated in laptops, though i may be mistaken): usb storage
> devices won't hold hardware addresses.  The only workaround solution i've
> found is to unload the ehci_hcd module and run at usb 1.1 speeds.
>
> Has anyone encountered this?  Has anyone solved it?  I've looked far and
> wide and have not had success with anyone else's solutions that i've found
> (though, to be honest, i've never compiled my own kernel, mostly because i
> don't have the time to learn enough about it to feel like i'd do a good job
> configuring it well)

This looks like your southbridge is damaged, it's a common problem of T40's 
and you have to replace the system board to fix it. My T40p has the same 
problem...

regards,
Jörg

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