[dgold105]

I have one of the new 17" powerbooks with the HD screen. Am running 10.4.3.

I am having a problem that often the powerbook takes close to a minute to go to sleep after closing the lid and on the odd occasions it doesn't go to sleep at all.

I have tied a PRAM reset, fixed permissions, done an archive and install, checked activity monito and startup items, run tech tool pro none of which have fixed the problem. The problems persists across any users.

Anyone know how I can work out what is causing the problem or how I can remedy it?

David

[ism]

I wonder if this is to do with the safe sleep thing? Try disabling it (if possible in Energy Saver prefs) if not see here: http://www.andrewescobar.com/archive...leep-your-mac/

[zeta101]

it is indeed most likely to be the safe sleep feature, I enabled it on my 12" 1.5GHz pb and noticed it took some time to sleep, it depends how much stuff it has to write to hard disc from ram. So if you have a lot of stuff open and are using a lot of ram it will take longer to sleep compared to hardly any programs open.

[tricha6]

My Powerbook took a little while to sleep. I ended up reinstalling the system software for unrelated problem and the problem went away; this is on a 12 inch Powerbook (Feb 05) without the safe sleep option.

[Mike656]

My powerbook 15 inch was also slow to sleep since I got it back from AppleCare, took about 20 seconds. But for some reason as of yesterday it has started sleeping as soom as I close the lid, like it always used to.