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I see these sleep problems on my MBP regularly
Authored by: Han Solo on Jan 14, '09 05:21:06PM
Rob should be glad he has never run into this bug on a MacBook Pro. It is maddening -- especially after years on a PowerBook, in which sleep (and everything else) Just Worked (tm).

I have the same basic problem described in other posts: about 90-95% of the time I attempt to put my mid-2007 15" Santa Rosa MacBook Pro 2.4GHz to sleep on my desk, it will awaken automatically. (There is no jostling of the MBP involved, so it's not a latch issue -- indeed, it happens even if I select "Sleep" from the Apple menu.) When it re-awakens -- usually within a few seconds -- I see the screen light up and hear the SuperDrive try to spin up. This happens whether I am connected to an 802.11g or 802.11n AirPort WiFi network. Unfortunately, I haven't been able to make sense of the copious output written to the Console to figure out what is going on, but it seems to clearly be a bug. This problem has occurred with every version of Mac OS X 10.4.x I've installed on my MBP. (I have not yet upgraded to Leopard.)

Turning off AirPort usually will allow the MBP to sleep, but not always. In those cases, sometimes I have to try two or three times to put it to sleep -- and for whatever reason, it typically takes 30-60 seconds after disconnecting from the wireless connection before it will sleep. (And, yes, I have already disabled SafeSleep.)

I have noticed that about 50-60% of the time that it is running off battery, it will go to sleep even if the AirPort connection is still on. On the other hand, there are (thankfully rare) occasions in which it will exhibit insomnia even with AirPort off and the power cord unplugged.

Finally, at random but rare intervals, it will refuse to wake from sleep. Holding down the power key (hard reboot) is the only way to make the machine functional again. What actually seems to be happening is that the screen lock process crashes, so that either the password prompt never comes up after waking, or it comes up with the SPOD and does not accept keyboard input. (The darned cursor still moves, however.)

Thanks to the author making this program available, although I have not tried it yet. Could the author post the source code somewhere? Much appreciated.

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