I had a similar problem. Flip the mouse over and look for a hair in the sensor. If that isn't it, try replacing the mouse, it might be a bad cable or similar. (That worked for me.)
** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2046636 Title: Mouse is erratic moving even i am not using it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2046636/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs