Comment 174 for bug 88746

Pär:
This most certainly does not have anything to do with the length of the
cabling. But your front ports might be no native USB ports but internal
USB Hub ports. This however is just something I suspect to be the reason
for the bug. However, unless some developer has a look at that or at
least advises me, how to verify my theory, this will just stay
speculation.

On Mon, 2007-12-10 at 12:08 +0000, Pär Lidén wrote:
> I've had the same problem, but just on my front ports. And I'm pretty
> sure it is because the wires are longer, and of lower quality, to the
> front ports. The back ports are connected directly to mainboard, via a
> riser. Usb 1.1 devices (such as mice and keyboards) work at the front
> ports, but not usb 2.0 devices (such as camera or memory sticks). If I
> unload usb-ehci it works.
>
> So IMO, a solution to this could be some sort of fallback. If usb 2.0
> doesn't work, try 1.1, and then notify the user. Win xp does this for my
> front ports. I don't know if this is hard to implement, I'm no kernel
> hacker. I was just about to post a feature request about this thing when
> I found this bug.
>
> I have a ASUS P4C800 motherboard, with intel 875 chipset, and an Antec
> Sonata case (the original model). And I think the wires from the case
> are to blame in this case.
>