I have a canoscan LIDE 30 with the same problem. I connect it into a USB 3.0 port no go in a USB 2.0 port on the same machine it works. I can give you all the pertinent information if you need. This is also a problem in Oneiric with the default kernel.
** Changed in: linux (Ubuntu) Status: Expired => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/712384 Title: USB scanner doesn't work when connected to USB 3.0 port To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/712384/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs