As suggested by Alan Stone on the linux-usb mailing list, I've verified that the "USB cable is bad" messages are caused by the order in which the USB devices are initialized.
I've also found a new way of triggering the freeze on a bad kernel: https://bugs.freedesktop.org/show_bug.cgi?id=76935#c1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1485057 Title: "lsusb -v" as root freezes the kernel on Acer ES1-111; also freeze on shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1485057/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
