[MinnowBoard] USB issue?

[John Hawley]

Would someone mind adding that to the wiki? (I'm running around at a
conference and by the time I can get back to do it, I'll probably have
forgotten).

Thanks!

- John 'Warthog9' Hawley

On 12/4/2014 4:04 PM, Soeren Zorn wrote:
> Thanks a lot, that was the problem! Solved it by using a small hub (in
> the absence of an extension cord).
>  
> *Gesendet:* Freitag, 05. Dezember 2014 um 00:17 Uhr
> *Von:* "Adam Goode" <adam at spicenitz.org>
> *An:* "MinnowBoard Development and Community Discussion"
> <elinux-minnowboard at lists.elinux.org>
> *Betreff:* Re: [MinnowBoard] USB issue?
> 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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