Recent Lion update messed up screen dimming

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I just installed an update yesterday (not sure what it was; I didn't bother reading it).

Now whenever my screen dims, it won't brighten up until about 30 seconds after I press a key. I can still use my computer during that time, but the screen is dim.

Has anyone else had this issue? Does anyone know how to fix it?

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MacBook Pro running 10.7.2
 

chscag

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Your Mac's Specs
2017 27" iMac, 10.5" iPad Pro, iPhone 8, iPhone 11, iPhone 12 Mini, Numerous iPods, Monterey
Reset your System Management Controller (SMC). Follow these directions from Apple: LINK
 

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