iMac not sleeping properly

jialuolu

macrumors regular
Original poster
Oct 10, 2005
107
0
Canada
It only started happening a couple of weeks ago, it seems, but now whenever I put my iMac to sleep, it wakes up about 5-10 seconds later but the second time I put it to sleep, it'll stay asleep. Same deal even if I have no apps running. Any ideas?
 

EricNau

Moderator emeritus
Apr 27, 2005
10,648
31
San Francisco, CA
How are you putting it to sleep?

If you're using the keyboard shortcut, and you hold one of the keys too long, it will cause the computer to wake up.
 

Fleetwood Mac

macrumors 65816
Apr 27, 2006
1,265
0
Canada
What's plugged into your iMac?

If my generic external drive is plugged in, for example, it'll only sleep on the second try. Other peripherals cause similar behaviour.
 

jialuolu

macrumors regular
Original poster
Oct 10, 2005
107
0
Canada
How are you putting it to sleep?

If you're using the keyboard shortcut, and you hold one of the keys too long, it will cause the computer to wake up.
Nope, usually I just press the power button on the back but the same thing happens if I go through the Apple menu as well.

No devices plugged in except for a USB printer but it's never on :confused: