[ltp] USB port colors, nonfunctional port on X220

[James Macpherson]

On 09/20/2011 04:59 PM, Matt Jenny wrote:
> from some googling I think the Blue is USB 3.0, the Yellow is USB 
> 2.0 always on, and black is normal USB 2.0. try lsusb and see if a USB 
> 3.0 hub is listed. I am guessing at this because I have yet to work 
> with USB 3 but I think it should be listed the same as USB 2.0. Your 
> USB 3.0 hardware may not be supported yet.
I can confirm that the Yellow port is the always-on port.  I have the i5 
x220, which is without the USB3, and the blue port is the only cosmetic 
difference between the two.

A quick look at thinkwiki suggests that the USB 3 can be made to work at 
the expense of working suspend, and that the module might be 
blacklisted. 
http://www.thinkwiki.org/wiki/Installing_Ubuntu_10.10_(Maverick_Meerkat)_on_a_ThinkPad_X220 
<http://www.thinkwiki.org/wiki/Installing_Ubuntu_10.10_%28Maverick_Meerkat%29_on_a_ThinkPad_X220>

Hope that helps!

- J