I have found that most of my problems have cleared up by doing the following :-
1. Adding the following to /etc/initramfs-tools/modules :- ohci_hcd ehci_hcd 2. Rebuilding the initramfs by running 'update-initramfs' 3. Reboot. This (I believe) ensures the modules are loaded in the right order at boot. -- 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