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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!!

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I am sure this mouse is OK before upgrade to 14.04, also, I try to plug in another mouse. But the result is the same -- doesn't work. –  user273119 Apr 23 at 16:11
    
My USB mouse wouldn't copy/paste/highlight 100%. I switched to PS/2 mouse...no more problems. –  user287289 Jun 1 at 4:46

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