This sounds like the same bug upstream: https://bugzilla.kernel.org/show_bug.cgi?id=42584
Interestingly, it was happening with a different USB3 controller, so this bug doesn't seems specific to the NEC uPD720200. ** Bug watch added: Linux Kernel Bug Tracker #42584 http://bugzilla.kernel.org/show_bug.cgi?id=42584 ** Also affects: linux via http://bugzilla.kernel.org/show_bug.cgi?id=42584 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/904412 Title: USB3 card reader hangs/powers off when connected to USB3 port [NEC uPD720200] To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/904412/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
