Ugh. I spoke too soon. I had ehci blacklisted. In summary, unplugging the Alcor Flash reader allows me to keep ehci, but leaving it in causes "reset high speed USB device" events.
-- 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
