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It seemed that the USB connection was OK.

Is there any way to solve this problem?

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We'll need a lot more info to help you. What happens when you connect the mouse? Does it need drivers? What mouse is it? –  Nathan Greenstein Jun 22 '11 at 1:55
    
@Nathan no drivers required, Apple mighty mouse A1152. Actually, nothing happened when the mouse connected. –  YeJiabin Jun 22 '11 at 2:00
    
What version of the Mac OS are you running? Have you upgraded it recently? When was the last time that the mouse was working correctly, and what have you changed on your system since that time? Have you installed any new software whatsoever? Have you experienced any crashes? Please provide more details. –  Wheat Williams Aug 13 '11 at 4:29
    
Does one USB port of the MacBook seem more problematic than other USB ports? –  Graham Perrin Jul 25 '12 at 10:40
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2 Answers

With a problem such as this, the first thing you must always try is to connect a different USB mouse. If one works, and the other doesn't, then the problem is almost certainly with a defective mouse, and not with the computer. This is a basic troubleshooting step known as "isolating the fault".

In all problems of this sort (not just with mice) you need to test with a second peripheral that you know is working correctly, which we refer to as the "known good" item.

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Additionally: test the mouse on another computer to see if it works there. –  Jannemans Oct 12 '11 at 16:31
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Open system profiler and look at the USB connection area. You can refresh to see if it's seen on the system bus. If it is - look in the console app - system.log for more USB related errors.

If it isn't then it's a bad port / cable or mouse.

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