Here's the output of lsusb now, though now everything works fine so I guess it won't be of much help.
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 003 Device 015: ID 0458:003a KYE Systems Corp. (Mouse Systems) NetScroll+ Mini Traveler / Genius NetScroll 120 Bus 003 Device 011: ID 0409:005a NEC Corp. HighSpeed 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 001 Device 010: ID 0489:e04e Foxconn / Hon Hai Bus 001 Device 004: ID 04f2:b374 Chicony Electronics Co., Ltd Bus 003 Device 012: ID 03f0:1604 Hewlett-Packard DeskJet 940c Bus 003 Device 013: ID 0409:005a NEC Corp. HighSpeed Hub Bus 003 Device 014: ID 0518:0001 EzKEY Corp. USB to PS2 Adaptor v1.09 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1250488 Title: USB hub stopped working on a given USB port (would work on any other port). Reboot fixed the issue To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1250488/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
