On Wed, 12 Jul 2006, Berndt Josef Wulf wrote:

> > ..but actually I wonder if this may be caused by the absence of
> > isochronous transfer support in the ehci(4) driver - was the older laptop
> > a different USB controller?
>
> Yes, the usb controller has changed.
>
> old laptop = Intel 82801FB/FR USB UHCI Controller (rev. 0x03)
> new laptop= Intel 82801GB/GR USB EHCI Controller (rev. 0x01)

Ok - just to make sure, have you tried any other USB hardware on
the new laptop?

iain