Mid 2010 Macbook Pro Won't Sleep on Power Adapter

i have mid 2010 edition macbook pro running lion , noticed not sleep if close lid or select sleep apple icon if connected power adapter sleeps fine (using sleep light indicator) while on battery power or put asleep on battery power , reconnect power adapter. also, @ times, when open lid (never having gone sleep), screen comes on , turns off after 5-10 seconds. ideas?

 

capitanbuzo said: ↑

i have mid 2010 edition macbook pro running lion , noticed not sleep if close lid or select sleep apple icon if connected power adapter sleeps fine (using sleep light indicator) while on battery power or put asleep on battery power , reconnect power adapter. also, @ times, when open lid (never having gone sleep), screen comes on , turns off after 5-10 seconds. ideas?

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running on ac power or battery shouldn't affect ability sleep, unless have different settings in energy saver profiles.

mac os x: why mac might not sleep or stay in sleep mode
determine why mac wakes sleep

 

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