Turn macbook on/off w/keyboard through KVM?

remember the old days when you could turn a mac on/off with a key. Can you still do that with a wired KB? I've been using a laptop for years. How 'bout through a KVM?

Try running an Apple Hardware Test:
http://support.apple.com/kb/ht1509
If you find you can't, make an appointment at an Apple store genius bar.  The evaluation will be free and then you should know what the problems are with your MBA.
Ciao.

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