I am using Lenovo X201 running with Ubuntu. After upgrade to 14.04 my Microsoft USB mouse does not work.
:~$ lsusb | grep mouse Bus 002 Device 021: ID 045e:00cb Microsoft Corp. Basic Optical Mouse v2.0
It looks like this mouse was detected but don't know why doesn't work (no response). Currently, only IBM trackpoint (touchpad) work. May I know how to fix it? Thanks!!