lsusb looks the same whether the Micro is plugged in to a blue or black port or not at all:
geoff@geoff-laptop:~$ lsusb
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 003: ID 5149:13d3
geoff@geoff-laptop:~$ sudo chmod 777 /dev/ttyUSB0
[sudo] password for geoff:
chmod: cannot access `/dev/ttyUSB0': No such file or directory
geoff@geoff-laptop:~$