G5 won't sleep

For some reason my G5 has sleeping problems. Although I set in the energy save to 15 minutes both display and cpu, it won't sleep. Maye it needs prozac?

MAC G5 Dual 2 Ghz 1.5 GB DDR SDRAM, Mac OS X (10.4.3)

Posted on Nov 11, 2006 2:29 PM

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7 replies

Nov 11, 2006 2:58 PM in response to Kobi Shely

This is for a Mac that won't sleep.
First, read things in Apple doc.#25801 on sleep settings.

USB devices and hubs often cause Macs to not sleep or wake quickly from sleep (notably HP printers and scanners, HP all in ones, and Cannon scanners). Disconnect all USB except for keyboard and mouse and try. If it sleeps, add one back at a time testing after each one to find the culprit.

If you've set your Mac to recieve faxes, it may not be able to sleep. It might also have a damaged preferences file.

If you use your Mac for faxing, open System Preferences. click Print & Fax, click the Faxing tab, and uncheck the Recieve Faxes On This Computer box.

If that does'nt work or you've never faxed on your Mac, go to Finder/Hard Drive /Library/Preferences/SystemConfiguration and delete the com.apple.PowerManagement.plist and com..apple.AutoWake.plist files (if your Mac asks, type your admin. password).

If the latter file isn't present in the folder, go to user name(probably your name)/Library/Preferences, delete the com.apple.systemuiserver.plist file, and reboot your Mac.

Hope this helps!
P.S. One member here reported this (Michael Gleason);
"I have had this problem with my IMac G5. It is surprisingly irritating. LaCie's Silverkeeper backup software was the cause. By default it gave itself permission to wake up the computer to check if a backup was needed. Do you have this or a similar program installed which has scheduled activities including wake-up permissions as an option?"

Dave Hamilton provided this link, xlr8yourmac.com, to a member, which addresses failure of deep sleep with some users that updated and added new FireWire and USB cards.

tomhorvat adds this; After few days of messing around I found out that I had desktop background (wallpaper) set to change every 1 minute.
After unchecking "Change picture..." in system preferences (under Desktop/Screen saver), my powerbook went to sleep all by itself.

Cheers!
DALE

Dec 13, 2006 7:10 PM in response to Dale Weisshaar

O.k. I am having the same problem but with a twist. My Mac will go to sleep if I commanded to sleep. I can do it through the keyboard short cut, pressing the power button or through the menu command. But It will not fully sleep if the software is to put it to sleep. I dumped the preferences that you suggested. I don't have any USB devices that have giving me trouble in the past and this issue was not present a couple of weeks ago. The only thing that has changed is that I installed scanning software for an HP scanner, but it is not currently connected to my Mac. Any Ideas of what else could be the cause?

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G5 won't sleep

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