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I use my MacBook Air (OS X 10.7.4) with the Apple USB keyboard with numpad and the USB mouse (connected to the keyboard). Perhaps unrelated, I also use an external monitor.

If I am lucky, the keyboard and mouse work fine. I can go in and out of sleep mode and the keyboard and mouse keep working just fine.

But when I have been away with only my Mac and I return to my desk to reconnect the keyboard, the keyboard and mouse do not respond and oftentimes the screen freezes (so that I cannot even use the internal keyboard). Sometimes only for about 5 seconds. But the keyboard and mouse does not start to work. I have tried to go in and out of standby mode, restart and shut down with the keyboard connected. But it only rarely helps. Right when I write this, I had the non-working external keyboard connected. And after about 3-5 minutes it started to work normally "by itself".

I have searched the internet but have not been able to find others with the same problem or a solution to the issue for that matter. I have reported the problem to www.apple.com/feedback but they do not offer much help in return.

Perhaps someone else experiences this issue or even has a solution?

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Note: I did see an error appearing in the OS utility USB Prober under the USB Logger tab (Level: '7 - Most Detail' and hit the 'Start' button). –  Ole Feb 21 '13 at 10:38
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closed as unclear what you're asking by bmike Jun 28 '13 at 13:26

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question.If this question can be reworded to fit the rules in the help center, please edit the question.

1 Answer

The issue has vanished upon upgrading to OS X Mountain Lion (10.8.2).

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The report that this was resolved upon upgrading to 10.8.2 doesn't work for all. I have 10.8.4 and am experiencing the same problem as the original poster. –  user52263 Jun 28 '13 at 12:44
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