I believe the problem is hardware related and nothing to do with (k)ubuntu. I have a new PC with 2 USB3 ports setup to dual boot between Windoze 7 and Kubuntu 13.10. The ports worked fine under Windoze but not at all under Kubuntu.
Browsing the forums for a solution I came across the answer in a Linux Mint (Ubuntu derivative) forum. Apparently internal USB3 ports plugged into the motherboard 20 pin header will not be recognised by Linux. The answer is to buy a PCI-E to USB 3 expansion card. I bought the Inateck Superspeed card from Amazon, plugged it into my motherboard's PCI-E expansion slot (MUST be a PCI-E slot, will not work with standard PCI) and on booting my PC Kubuntu recognised the ports and connected drives instantly. (Windoze had to wait until I installed the supplied driver). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1242321 Title: USB 3.0 not recognised by Ubuntu 13.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1242321/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs