On Sun, 17 Jan 2016 09:03:16 -0500 Robert P. J. Day wrote:
"dmesg" doesn't seem to see it, and neither does "lsblk" or "lshw". any suggestions?
This sounds almost like it has no power. Maybe something isn't making a good connection. Is there another machine you could try it in? If you are dual booting, does the other OS see it?