MacBook Pro question

[gassy]

When I close the computer, every time I open it I have to restart. the light shows that it's sleeping, but nothing short of turning it off then back on works. Then, on start up, it takes about 8 minutes to start up fully. Before I search Apple I thought I'd start here.
Thanks, Christian

[stomachmonkey]

What version of the OS

[kstar]

http://www.windley.com/archives/2007/10/fixing_macbook_pro_sleep_problems.shtml

This is a popular fix, but I don't think, from what I have read, it is the 100% fix.

Good luck!

Best,

[jeffgrant]

I found that the problem was that I was used to the way that my old MacBook Pro would sleep... as in, it would sleep immediately.

I would just close the lid and then move it; put it in my backpack, unplug a mouse, etc. It used to be able to handle it just fine.

My new MBP, though, doesn't work that way. I now find that when I put it to sleep, I have to wait a bit until it actually gets to sleep (you can tell by the front light) before doing anything to it. (This is due to the way that it now goes to sleep, which has changed).

If you DO do something to it before it's fully fallen asleep, there's an internal motion detector that causes it to kind of "reset" itself so that it is then somewhat "awake" with the lid closed, but would then go to sleep when the lid was opened. The simplest recourse was to do a hard reset (hold down the power button), but that became tiresome.

The reason for this is that the new MBP's use a new sleep mechanism, which is basically that it really "hibernates", and writes all memory to hard disk and powers off. "Old-school" sleeping was just keeping the memory in memory.

The reason they changed the way sleep works is that you can't change batteries on the new MBP's while it was in (old-school) sleep mode. The new sleep mode lets you do that, but it takes much, much longer to put it to sleep, and you can't be messing with it while it's going to sleep or you run into problems.


There's a very cool little control panel that sets the way it sleeps back to the old way, which solved my problems. It comes at a bit of a risk, but that's all explained on the site.

http://www.jinx.de/SmartSleep.html

The biggest issue you have to be aware of is that you can't change the batteries of the new MBP's while the laptop is asleep, if it uses the old-school sleep process.

The control panel also checks the battery level, and will reset the sleep method back to the new way (hibernate) when the battery starts to get low, so that you CAN change batteries if you want to.


Anyway, I'm using that control panel now, and it seems to work great.

[kstar]

That's the solution in the link I posted.

You can change sleep mode in Terminal, then find a hidden file named "sleepimage" and axe it! It's typically about the size of the amount of RAM on your machine, so you'll free up a decent amount of disk space.

FWIW.