On Sun, 05 Jan 2014 22:31:14 -0000 atar <atar.yo...@gmail.com> wrote:
> Hi! > > Thanks for replying! > > As per your question, the USB hub has not a jack for an external power > supply since it is designed to receive all its power from the USB bus > itself. moreover, the HDD itself is powered solely on the bus power. > But I think you're likely to be correct since Microsoft Windows XP is > also not able to mount the HDD when it is attached via the hub. > apparently those devices need a hub with external power supply to > provide them with their power consumption requirements. > You may also find that the length and/or quality of the cabling matters. I have a small Samsung drive which came with a cable about 8cm long, and it doesn't work reliably with longer cables. It certainly doesn't work through a hub, but it is long enough ago that I tried it that I can't remember the exact problem. I would have tried it with an externally-powered hub, as the ports of an unpowered hub often restrict the supply current to 100mA or so, a full-spec USB port must be able to provide 500mA. -- Joe -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20140105214048.205df...@jretrading.com
