This problems exists since months and is still present in 14.10. For me, it only happens when I use the onboard USB (2.0 or 3.0) of my mainboard. With an older USB 2.0 PCI card the scanner still works with sane.
And I can also use the scanner with the onboard USB controller, when I start Windows XP in VirtualBox , which uses an older USB 2.0 protocol. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1422132 Title: Canoscan LIDE 20 (plustek backend) not working anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1422132/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
