I can confirm the workaround posted above, to connect the usb-1 devices via an external hub instead of directly on the root hub. Oddly enough, the usb hub I am using is usb-1 only; I would have expected the workaround to work only when using an usb-2 hub.
-- ehci_hcd module causes I/O errors in USB 2.0 devices https://bugs.launchpad.net/bugs/88746 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
