Powermac G5 won't sleep properly AGAIN

HI,

Try resetting the PMU. http://support.apple.com/kb/HT1939






Carolyn 🙂

Are you using an UPS (battery backup) with your Mac? There is a note in this month's MacWorld about UPSs not allowing the sleep mode on a Mac to work correctly. It is listed as a known issue with an unknown fix date (if any). Just for reference, every so often my iMac wakes back up when after I put it to sleep. I can usually put it back to sleep without any problems.

Paul

You could run the Apple Hardware Test from your install disk.

http://www.thexlab.com/faqs/aht.html





🙂

A number of sleep-related issues can appear after incremental Mac OSX updates, including the inability to properly go to sleep, problems waking from sleep, and having your display go to sleep without your Mac going to sleep. The most common culprit is Bluetooth. Try these tips to fix your sleep problems.
WAKE UP
In System Preferences>Bluetooth, uncheck Allow Bluetooth Devices To Wake This Computer. If you are using a Bluetooth mouse and keyboard, you'll have to wake your Mac by pressing the power button.
FILE CORRUPTION
Your Bluetooth preference file may be corrupt-you'll need to delete it. Turn Bluetooth off, then go to the /Users/user name/Library/Preferences folder. Look for a file called com.apple.Bluetooth.plist and trash it.The OS will create a new preference file when you enable Bluetooth again.
ENERGY SAVER
If you have issues with a Mac or display that goes to sleep at inappropriate times, you may have a problem with Energy Saver. Delete the following .plist files and restart:

-/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist

-/Users/username/Library/Preferences/com.apple.systemuiserver.plist--
(username is your name or System Administrators name)

-/Library/Preferences/SystemConfiguration/com.apple.AutoWake.plist
A restart is very important after deleting these plists. After a reboot your Mac will then generate new ones.

Some, in these forums, have had luck fixing sleep issues downloading the Combo update from this site (yours may be corrupt), not Software Update, disconnect all firewire + USB devices except keyboard + mouse, Repair Permissions, re-install update, Repair Permissions again + try.
DALE

Then there is this one if that doesn't do it;
This is for a Mac that won't sleep.
Here is KB article HT1776 with their tips.
Mine follow;
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 receive 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 Receive Faxes On This Computer box.

If that doesn't 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 card.

Also, here is Apple KB article TA2469 about PCI cards and sleep.

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.

Tristan Currier noticed this; "I have a Canon printer(shared) and my imac would not sleep. I opened up printer/fax in system prefs and noticed it said the printer was in use when it was off. Opened up the printer queue and noticed about 7 pending documents. Deleted them all and now it sleeps.
Check the printer queue!"
Allan Jones says "sometimes there is Network activity: launch System Preferences > Energy Saver > "Options" tab and uncheck "Wake for Ethernet network administrator access."
Good Luck!  DALE

My G5 doesn't want to sleep either. Turning off bluetooth lets the G5 sleep, but it is inconvenient.

Wasn't sure if you saw this part;

In System Preferences>Bluetooth, uncheck Allow Bluetooth Devices To Wake This Computer. If you are using a Bluetooth mouse and keyboard, you'll have to wake your Mac by pressing the power button.

DALE

Dale Weisshaar wrote:

Tristan Currier noticed this; "I have a Canon printer(shared) and my imac would not sleep. I opened up printer/fax in system prefs and noticed it said the printer was in use when it was off. Opened up the printer queue and noticed about 7 pending documents. Deleted them all and now it sleeps.
Check the printer queue!"

Good Luck!  DALE

Bingo! Turns out my wife had a document in queue. And printer was showing up as "in use" even though it wasn't even plugged in or connected to our Mac.

INteresting that the "stuck queue" was for the same printer I've been using just fine for the past 6 weeks. HOwever the "stuck queue" was for a different location of the same printer. It was the queue for the printer when it is connected to my AEBS. System Preferences shows my printer twice - once for a Bonjour AEBS (wireless) connection to my Mac and once for a direct USB connection to my Mac.

So never noticed the queue was stuck since I hadn't had my printer connected to the AEBS in about 6 weeks which is about when this problem started.

I'm glad that solved your issue. That is such a simple thing and very easily overlooked. Has happened to me after my wife tried to print something.
Dale

It solved my issue for a day until I installed Snow Leopard.

Now I have the problem again. iMac doesn't sleep automatically.

This time however, when I boot into safe mode, the problem goes away. The iMac sleeps automatically.

Now have to figure out just what is causing it.


a) It loads only required kernel extensions (some of the items in /System/Library/Extensions).

b) It disables all fonts other than those in /System/Library/Fonts (Mac OS X 10.4 or later).

c) It moves to the Trash all font caches normally stored in /Library/Caches/com.apple.ATS/(uid)/ , where (uid) is a user ID number such as 501 (Mac OS X 10.4 or later).

d) It disables all startup items and login items (Mac OS X 10.4 or later).

e)Mac OS X 10.5.6 or later: A Safe Boot deletes the dynamic loader shared cache at (/var/db/dyld/). A cache with issues may cause a blue screen on startup, particularly after a Software Update. Restarting normally recreates this cache.

I don't have any startup items in the startup folder nor login items.

trip1ex wrote:
It solved my issue for a day until I installed Snow Leopard.

I wonder why you wouldn't wait longer then that to make sure you were not passing something on to the new OS?
Dale

Hi Bradley,

often an insomniac Mac has the following files missing or not correct:
/Library/Preferences/SystemConfiguration/com.apple.AutoWake.plist
/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist

just delete both (may need password); then open system prefs/ energy saver and ensure to reset the (now) default to your settings you desire; importantly, set the "schedule" to wake up, ok this ⚠, then untick the schedule (and ok again). This will result in a correct (but empty) autowake.plist.

Occasionally, especially after major updates, it might redoing.

Incidentally, the aluminium keyboard, if dropped from approx 1" by accident on your desk could wake your computer, so does the setting (in sys prefs) "wake for ethernet administrator access".

all the best. 🙂