[MinnowBoard] USB issue?

[Adam Goode]

It is almost certainly this:
http://www.intel.com/content/www/us/en/io/universal-serial-bus/usb3-frequency-interference-paper.html

On Thu, Dec 4, 2014 at 4:18 PM, Soeren Zorn <ZornS at web.de> wrote:

> Hi,
>
> I encountered a small issue with the USB ports. I am running the latest
> Debian testing version on my MinnowboardMax (dual core version, Rev.A2),
> with LXDE as GUI. So far so good. Input device is a Logitech K400 keyboard
> connected by using a Logitech Unifying receiver.
>
> Now about my problem - when I connect an external USB 3.0 hard drive to
> the USB3.0 port (the lower, blue USB port) with the Unifiying-Receiver
> connected to the upper USB2.0 port, the keyboard becomes somewhat
> unresponsive - meaning, I type on the keyboard, and sometimes a letter
> shows up, but most times not. Same for the keypad input - if I am lucky,
> the cursor moves, but most of the times, it simply does not.
>
> Now comes the funny thing - when I connect the hard drive to the USB2.0
> port (top), and the unifying receiver to the lower USB3.0 port, everything
> works like a charm, besides the fact that the disk transfer speed is
> limited to USB2.0.
>
> Any ideas what goes wrong? Anything I might have done wrong? I am thankful
> for any suggestions!
>
> Soeren
>
>
> --
> ...and thanks for all the fish (in memory of D. N. Adams)
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>
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