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Tbdbuckeyeitl

macrumors regular
Original poster
Jul 25, 2012
199
0
When my imac is coming out of a deep sleep such as an hour or more. When the screen wakes and the password screen comes on, it flashes off or black for a quick second then back to password screen. It does not do this during use or a quick sleep just coming out of a long sleep.
How do I fix this? Is this a major problem worth taking the imac to an apple specialist? Is it a hard drive failure.
Is this normal please help. Imac is a late 2012 27 inch model with fusion drive.
 
I reset the pram and unplugged machine. However it does same thing. Can anyone help? Does this seem like a major or potential issue.
 
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