Martyn, could you please post the results of the following terminal command: usb-devices
** Tags removed: bios-outdated-a16 ** Tags added: latest-bios-a16 ** Tags added: kernel-bug-exists-upstream kernel-bug-exists-upstream-4.3 ** Tags added: trusty vivid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1513914 Title: Dell E7440 touchpad jumps position To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1513914/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs