FWIW - I replicated the issue on a Gigabyte H97M-D3H board, exactly the same symptoms and effect.
However, disabling xHCI in the BIOS (so all USB3 ports fall back to USB2/EHCI) and the problem is no longer apparent. My suspicion is thus the newer chipset: both of my boards are H97, and the OP's NUC is a Haswell unit, I think, so will have similar chippery and/or microcode in it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1313279 Title: xHCI host not responding to stop endpoint command To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lubuntu-meta/+bug/1313279/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs