On Tue, 19 May 2009, Julien de Rosny wrote: > > There may be other ports on the front or side of the motherboard. Or > > maybe there are bare connectors, with no cables connecting them to a > > port. > > > Right. In fact it seems that there are 2 usb2 bus. > I change the connection between the front usb and the motherboard, and now my > wifi stick is on bus 2. > And now the dvb-t works perfectly at the same time than the wifi stick. > That's good. Great! > In fact my problem seems closely related to this bug > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/256492. I was thinking that > it was solved, but it doesn't seems. It looks like those people solved their problems the same way you did: by putting the two devices on different buses. > But I still do not understant why the 2 usb2 devices cannot share the same bus > without interfering. Is there a way to test the usb connection, a kind of > utility that test the usb connection? Not that I know of. Besides, you have found that each of the connections works okay. Problems occur only when both devices are being used on the same bus at the same time. That probably means some of the hardware is bad. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
