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A comment on the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it" in Apple:

So far all is good: on my benchmarks: so, slightly faster in raw memory access, but slightly slower in streaming. Overall the same. The only problem I've encountered is that the system reports that the installed RAM as being PC2-3200S-2-6-6 (a non-existent configuration for DDR2 SODIMM RAM) instead of PC2-5300-4-4-4-, so I guess I'm paying a performance penalty of 1/7 (that would be 12/14) in latency. Not an noticeable, and barely measurable, penalty. To come back to Thor's problem, I'll let you all know whether I have any success. You can't prove a negative, but so far - early days - so good. Anyone here remember the underrated capacitors on the original Apple Graphite Airport base stations? outer – outer, on June 26, 2008 04:00

A comment on the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it" in Apple:

interesting! – John O'Day, on June 26, 2008 01:54

A comment on the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it" in Apple:

Yup. That's my issue too. MacBook Pro circa Dec 2006. Are then new new MacBooks seeing this issue too? – daemonchild, on June 24, 2008 20:29

A comment on the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it" in Apple:

Presumably under AppleCare? How much if you're not covered anyone? – daemonchild, on June 24, 2008 20:27

A comment on the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it" in Apple:

Well, I've just put my money where my mouth was and replaced my memory with two 1G PC2-5300 4-4-4-12 modules. We'll see. – outer, on June 24, 2008 20:18

A comment on the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it" in Apple:

outer that isn't really useful information, it's more opinion – DS, on June 24, 2008 17:33

outer replied on June 24, 2008 13:27 to the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it" in Apple:

This is indicative of a hardware deadlock or livelock interrupt handler. On my PowerBook G4 1.67 Tiger, I suspect it is caused by Apple overclocking their supplied PC2-4200 DDR533 RAM to 333Mhz, while I have 3rd party JEDEC standard PC2-4200 RAM (which is only rated to 266Mhz) installed.

A comment on the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it" in Apple:

John O'Day marked this reply as useful – John O'Day, on May 16, 2008 08:09

John O'Day marked one of DS's replies in Apple as useful. DS replied to the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it".

cliffrowley@gmail.com replied on May 15, 2008 00:03 to the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it" in Apple:

There's also a known issue with connected Bluetooth devices when Leopard wakes from sleep. This usually happens to me if I've had my Mighty Mouse connected when I sleep my MBP, and then later wake it when the mouse is not present.

Turning off / disconnecting the mouse before going to sleep fixes the problem for me.

A comment on the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it" in Apple:

Thanks! – Amy Muller, on May 14, 2008 23:37

A comment on the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it" in Apple:

That makes perfect sense! Thanks for the update. – Thor Muller, on May 14, 2008 23:30

Thor Muller marked one of DS's replies in Apple as useful. DS replied to the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it".

DS started following the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it" in Apple.

DS replied on May 14, 2008 23:28 to the problem "My Macbook sometimes doesn't wake up from sleep mode after I open it" in Apple:

I found that the problem is caused by an overused CPU at the time of 'waking up' the laptop, if you move the mouse around and then wait it should wake the screen up within 90 seconds. i do believe it has to do with how the memory is cached when putting the laptop to sleep