Dual G5 1.8 refuses to sleep

The computer will not go to sleep. When I try to force to sleep it enters sleep for a second and immediately wakes up. Screen seems to go to sleep OK. However, when computer wakes up it wakes the screen too. I tried all the suggested solution including hard reboot, running scripts, crons (Yasu), minimizing amount of login items? Any suggestions?

I am having the same problem. It happens more often when I try to use the button on the studio display to enter the sleep mode. Called tech support, No help there. Cleared the p-ram no help, reviewed and repaired permissions no help. So I hope someone can help on this board.

Similar Messages

Late 2009 MBP Refuses to Sleep.

Hello,
Problem: My late 2009 Macbook Pro (10.6.8/Snow Leopard) refuses to sleep. It doesn't sleep when I close the lid and when I attempt to put it to sleep manually, the screen goes dark for no more than two seconds then wakes back up. When I close the lid, I observe the white light on the front right that usually oscillates--dims and brightens-- when it is sleeping. Lately, when I close the lid, the light comes on and begins to fade as usual, but as soon as it is dim it quickly comes back on. It is very similar to someone dozing off and forcing their eyes back open quickly, if a visual is needed.
When I put my ear to the bottom of my MBP, it is still running. However, every 20 seconds or so it sounds as though it is attempting to sleep--the fan and other bits slow down-- but starts back up again. The light on the front verifies this, because it dims then relights quickly when this happens. I have not downloaded any applications that prevent my computer from sleeping. I have enabled settings that put my notebook to sleep everyday at the same time, but it never abides.
Things I've tried:
-Restart (failed)
-Power off and restart (failed)
-Sleep from Apple menu (failed)
-Sleep from power button (failed)
-Sleep from lid closing (failed)
-Sleep from login screen in safe mode by closing lid (failed)
-Sleep from login screen in normal mode by closing lid (failed)
-Resetting SMC (failed)
-Sleep from safe mode after login (failed)
Any help and insight is greatly appreciated.
Thanks for your time.

InchoSnail,
Some links to check, maybe there may be something for you, if you have not already seen these.
Mac OS X: Why your Mac might not sleep or stay in sleep mode
OS X Mavericks: If your Mac won’t go to or stay in sleep
OS X: When your Mac doesn't sleep or wake

MBP one user account refuses to sleep.

In my main account my computer refuses to sleep. I made a test account and there it will sleep. So it must be in the user.
I have
Repaired permissions
Removed the following files
1. com.apple.PowerManagement.plist
2. com.apple.AutoWake.plist
3. com.apple.systemuiserver.plist
Booted in safe mode
Have no USB devices present except for KB and mouse
I checked the consol log if anything is writing to it. Not.
Ditto system log.
Reset Pram
So anybody any tips?

BDAqua wrote:
Not that one or more of those are the problem, but how is that any different from... you never had the problem before, but now you do!?
Something has changed somewhere, that worked before.
Sorry. I had a bad crash and restored from a very recent backup, (before the crash it slept well) so that backup worked perfect before, and after reinstalling it it did (as a test I started also from the FW HD that the backup is on and it works). 2 days after the restore it started to give me problems. All I did after the restore is install X11 new and Gimpshop. But that also worked fine before.
So what could it be?

Help needed - refuses to sleep on its own

My 733mhz powerpc g4 refuses to sleep on its own even though the energy saver settings are correct. OS10.3.9. No bluetooth devices attached, standard keyboard, mouse and monitor. ADSK cable attached, and a printer, that's all. Who can help? Many thanks,
Uli

The workaround is to disconnect the cable before you want the Mac to sleep, and reconnect it when you want the computer awake.
Some USB devices, and your printer is apparently one of them, have the annoying habit of asking the computer, "Daddy, are you still awake?" every minute or two, sort of like my children when they were two years old and I was supposedly reading them a bedtime story. Short of swatting it with a two-by-four or disconnecting it, there's nothing you can do to stop it.

MDD refuses to sleep or shut down...

Hi,
My mother is having a very frustrating problem with her MDD powermac. It refuses to shutdown or sleep. When I tell it to sleep, the screen goes black, and the fans stop. However, right as the fans stop, they start back up again and the computer is right back where it was. When I tell it to shut down, the computer goes through the shutdown process and restarts instead.
I've repaired the permissions, disk looks okay, reset the PRAM, unplugged all peripherals (except the monitor - third party with no hubs or computer control). I have also checked the engery saver options for auto power on on power failure.
Any ideas on what could be causing this or where to even start?
I did find a couple things that are interesting in the system logs. What do you guys think?
Jul 16 10:25:50 power-mac-g4 kernel[0]: System Sleep
Jul 16 10:25:50 power-mac-g4 kernel[0]: Sound assertion "0 != err" failed in "AppleLegacyAudio/AppleTexas2Audio/AppleTexas2Audio.cpp" at line 3648 goto Exit
Jul 16 10:25:49 power-mac-g4 mDNSResponder: Repeated transitions for interface en0 (FE80:0000:0000:0000:020A:95FF:FE67:3B46); delaying packets by 5 seconds
Jul 16 10:25:50 power-mac-g4 kernel[0]: ^PSystem Wake
Jul 16 10:25:50 power-mac-g4 configd[35]: posting notification com.apple.system.config.network_change
Jul 16 10:25:50 power-mac-g4 kernel[0]: Wake event 0800
Jul 16 10:25:50 power-mac-g4 lookupd[196]: lookupd (version 369.5) starting - Wed Jul 16 10:25:50 2008
Jul 16 10:25:50 power-mac-g4 kernel[0]: rtclock timebase_callback: late old 1000000000 / 41658765 new 1000000000 / 41658675
Jul 16 10:25:50 power-mac-g4 kernel[0]: rtclock timebase_callback: late old 1000000000 / 41658765 new 1000000000 / 41658496
Jul 16 10:25:50 power-mac-g4 kernel[0]: Sound assertion "0 != err" failed in "AppleLegacyAudio/AppleTexas2Audio/AppleTexas2Audio.cpp" at line 960 goto Exit
Jul 16 10:25:50 power-mac-g4 kernel[0]: ^Prtclock timebase_callback: late old 1000000000 / 41658765 new 1000000000 / 41658496
Jul 16 10:25:50 power-mac-g4 kernel[0]: UniNEnet::monitorLinkStatus - Link is up at 100 Mbps - Full Duplex
Jul 16 10:25:51 power-mac-g4 kernel[0]: AirPortFirmware: start Sta f/w download
Jul 16 10:25:54 power-mac-g4 launchd: Server 3757 in bootstrap 1103 uid 0: "/usr/sbin/lookupd"[196]: exited abnormally: Hangup
MDD PowerMac (Dual 1GHZ)
1.5GB RAM
OS X.4.11
Thanks for the help,
-Josh

Hi-
Have you tried a SAfe mode boot? Hold Shift whike starting. Safe mode takes a bit longer to boot than a regular boot, as various system checks/repairs are performed. Once in Safe mode, see if the sleep/shut down functions. If so, then it is probably a Startup item.
Another check would be trying a different user account. Setting up a new account with admin privledges is best. If sleep/shut down work in the new user account, then the problem is a Login item.
Troubleshooting Startup and Login Items.
If this fails to help ID/resolve the problem, an Archive and install would probably be enough.
Without testing for startup/login item conflict, an Archive and Install will carry over any existing problems.

Dual Display Problems - No Signal After Sleep

So, I just set up my hexacore Mac Pro with stock ram and the ATi 5870. To go along with it, I purchased two Dell U2311H monitors from Dell so that I could finally have dual displays. I then purchased two 6' minidisplayport to displayport cables from Monoprice. Also went with the Apple wireless keyboard and Magic Mouse.
Upon initial start-up, everything worked fine. The monitors needed to be calibrated, but dual display mode worked perfectly without any extra steps. I had some fun messing around for a little bit and then decided to take a break. I put the computer to sleep.
I came back 15 minutes later (couldn't stay away for long), and clicked the mouse to wake the computer back up. I heard the tower humming, but the monitors stayed black. I tapped the keyboard. Still black. Assuming it was some issue I wasn't prepared for with the wireless peripherals, I futzed around with them for a while and had no luck. Still not image on the monitors. I turned the monitors off and then back on only to get an error message explaining that the monitor was in Power Save mode. Some further exploration revealed that the monitors were allegedly getting NO SIGNAL from the computer.
Restarting didn't help any. The only thing that has "worked" is shutting down the computer and connecting a single monitor through the DVI-D cable that came with it. I can then reconnect the displayport cable and switch the input to re-establish dual displays, but this is obviously pretty annoying. It seems like I can eliminate questions with the monitors themselves or the cables. In doing some research, I've found some threads on different sites about people having similar dual display issues attributed to faulty graphics cards. I certainly hope this isn't the case, but I'm at a loss for what the problem might be. It seems odd that dual displays would work briefly only to fail after going to sleep for 15 minutes.
Sorry if this is the dumbest question ever. Is there something stupid that I'm doing wrong? Anyone have any insight?
Any guidance you guys can provide would be greatly appreciated. Thanks in advance!

I have the exact same issue. Here's the forum I've got going: http://discussions.apple.com/thread.jspa?threadID=2686085&tstart=90
I called AppleCare because this issue was out of the box. Engineering wanted to capture some logger information so I ran the logger and sent it off to them.
I am running a Dell 27" via a DisplayPort to Mini-DisplayPort cable (also purchased through Monoprice) and a Dell 22" via DVI to DVI (have also tried with the DVI to DVI cable connected to an Apple DVI-MiniDisplayPort adapter and the same issue arrises). When I boot the computer with any of these cables, I get no video. Only when I boot with a Dual-Link DVI (DVI-D) cable from the 27" monitor do I get any video on screen. At this point, I can then plug in the DisplayPort to Mini-DisplayPort cable and the regular DVI (not Dual-Link) after unplugging the DVI-D cable and I get video. If I restart the computer, no problem. However, if the computer goes to sleep or if I power down and then power back up, I am back to square one with no video and have to resort to using the Dual-Link DVI cable.
Because this was DOA out of the box, they ended up just RMA'ing the machine and re-ordering my CTO Mac Pro 6-core. Still waiting for it to be built, I'll let you know how it goes on the second machine when it arrives.

Dual 2.3 Power Mac G5 sleeping problem

For sometime now my G5 has had a sleeping problem. I use evetv 500 to record tv shows. Most times I have been on the computer say 5 to 6 pm. I'll have it set to record at 7. The G5 will start up and record no problem, but the monitor will not go back to sleep, the whole system is almost locked up . I have found that the computer clock will be stuck at the time I let it sleep. If I move the mouse the clock will update, and the system will sleep.
Thanks for any help
Dual 2.3 G5 PowerMac Mac OS X (10.4.9)

Hi,
I've experienced something similar a bit now and then. The most recent occurense of this was just a few minutes ago. Last thursday (june 21st), I set my Mac to record one show at 21.00 and one recording at 18.00 (every weekday on the 18.00 one), both recordings are one hour each. The ordinary "sleep when idle" function doesnt seem to work properly but I still set it at 15 minutes plus a scheduled sleep at 22.08. Now when just I came home the Mac was on though it shouldnt be. iStat in Dashboard gave me these figures:
Uptime 0d 4h 22min, up since 8.35 june 21
The only reaction I got when I tried to check the sleepsettings was a message telling me that the computer was scheduled to go to sleep in 9mins 55sec's and the System Preferences panel just bounced in the dock, every app that I tried to start just bounced in the dock. When I tried to restart it I got a message, after a while, telling me that Eyetv was keeping my Mac from going to sleep and trying to force quit it didn't seem to make much change. I finally turned the Mac off by pressing the powerbutton on the front.
I got the 18.00 recording on thursday but not on friday and no 21.00 recording from thursday. I thought the scheduled sleep would override the other setting...

MacPro Lion refuses entering Sleep mode

Hi!
(note: I have a French version of OSX so all terms I use are My translation which may not be exact)
Since installation of OSX Lion I have problem with sleep mode:
- first time I found a cure on the net - I deleted one line in library ( just can't remember what exactly)
- this is second time and nothing I tried solved the problem: when clicking to suspend activity ITunes stops and screen turns off but never get the slow blinking light on the front panel (and never hear the little click sound when it goes off).
Since the first time I experienced the problem I've installed a second hard disk where I've created a boothable copy of my HD - if I booth using the copy, sleep mode works OK.
If it has any meaning: I've noticed on «Console» that after clicking on "apple-suspend activity", there are numerous and frequent entries about Firewall (Firewall: Stealth Mode connection attempt to UDP ##.##.###.### from 216.55.184.20:14589 -the latter is only one of the namy different addresses that try to connect).
Thx

«What about a new user account?»
You suggest I create a new user account?
«What are you using for firewalls? 3rd party? LittleSnitch or anything else>? Your router provides most anything you could want from a firewall. »
I use Lion firewall and I do not have a router
«Safe Mode disables 3rd party drivers and doesn't load programs and processes. »
I've tried booting in safe mode - same problem persists.
«Sounds to me like a problem from installing and upgrading over an earlier OS - setup assistant on a new install has benefit of strating fresh, imports all your settings and programs, and also leaves you with - as if you had cloned only better - a dual boot setup where you can use previous OS. »
Right I upgraded from Snow Leopard but the first sleep problem I had (early July) disappeared to reappear in September.
Are there files I could compare between the default drive and the clone that could give me a hint?

Refusing to sleep

My iPod refuses to go to sleep. Usually after a few minutes the screen will go blank, or if its plugged in, the battery icon shows up. But for an unknown reason, it just stays on the menu screen. Can anyone help?
PC something... Windows XP Pro

This happened to me with my first 60GB 5G iPod. I was suspicious of the Monster iCarPlay Plus that I bought for it, because it was only after I used it the first time (and got the error message) that I started noticing the problem. I can't prove this, of course, but hearing it from someone else makes me think this might be the case.
Long story short, I called Apple and reported the problem. They had me send the iPod in for repair/replacement (under the AppleCare program) and I wound up getting a new iPod. I'm now very, very careful about what I plug into it. I'm now using a Kensington transmitter, which seems to work well and doesn't give me the error message.

G4 Dual 450 Shuts Itself Off in Sleep Mode

It's been a long time since I've posted here. Got interested in digital photography and haven't had the time to check these boards like I used to.
Anyway, the title says it all. After my G4 Dual 450 has been in sleep mode a while, it shuts itself off. On startup, occasionally the power button doesn't seem to engage-- you press it and nothing happens. Other times the power button functions normally. Could a dying power switch cause the computer to shut down in sleep mode? This is a third computer in the house and is only used by my wife to play some simple games, including some old OS9 ones, so it'd definitely not want to put much money into repairing it.
One of my wife's favorite games is called Mombasa. It's a tile match shareware game in OS9 with an African theme. Does anyone know if it ever got ported to OSX. I tried a Google search but kept coming up with Mobasa Africa.
Thanks in advance for any suggestions.
G5 Dual 2.5/TiBook 867; Mac OS X (10.3.9)
G5 Dual 2.5/TiBook 867; Mac OS X (10.3.9)

Page 34 of the manual:
"If something is not working right, restarting or resetting iPhone will likely solve the
problem.
Restart iPhone: Press and hold the Sleep/Wake button until the red slider appears.
Slide your finger across the slider to turn off iPhone. To turn iPhone back on, press and
hold the Sleep/Wake until the Apple logo appears.
Reset iPhone: Press and hold the Sleep/Wake button and the Home button at the
same time for at least ten seconds, until the Apple logo appears.
For more troubleshooting suggestions, see Appendix A, “Troubleshooting,” on page 131. "
http://manuals.info.apple.com/enUS/iPhone_UserGuide.pdf

PowerMac g5 dual 2.7ghz keeps going to sleep every few minutes

My powermac g5 dual 2.7 ghz starts up and runs fine for approx 2 minutes then goes to sleep, I can wake the screen but it goes back to sleep shortly afterwards. Has anyone had the same problem or know of a way to fix this?

Hello,
Have you blown the dust out lately?
Get Temperature Monitor to see if it's heat related...
http://www.macupdate.com/info.php/id/12381/temperature-monitor
Open console in Applications>Utilities, check the system log for the date/time of the last problem & the Startup right after that for clues.

Dual monitor setup experiences noise from sleep wake

I have a second monitor hooked up to my 27" iMac and it will experience noise when I wake my computer up from sleep periodically. I have reformatted my computer twice now for other reasons, but the problem still continues. I have to turn my second monitor off and then turn it back on again and it will work great. It is just really annoying to wake my computer from sleep and only one monitor is running, but the computer still thinks the other monitor is connected, windows that were still running are still on the other display till a turn off the second display or click gather windows from the display setting in OS X.
The noise on the second monitor looks like an old tv when you are not on a channel that has reception. Its like a bunch of black and white dots flashing around. We used to call them ants in the tv when I was younger.
Any help out there?

Jared Blake:
I have the same problem, I think.
I used an external monitor with my previous iMac, no problem. In the past month or so I bought a new quad-core 27 inch iMac, and moved the external display to the new machine. Everything works normally, except that when I wake up the system, the external ViewSonic display is filled with "snow". Cycling power on the external monitor always restores it to correct operation.
The "snow" pattern looks very much like the old days of analog TV, before empty-channel "blanking" was developed and added. In essence, the TV was displaying random information.
This is the only case I can recall of seeing "snow" on a modern (i.e. digital monitor.) As far as I know modern monitors can detect that no valid signal is coming in, and in such cases, they display a blank screen and possibly a message saying something like, "no signal".
So, I'm guessing that our iMacs for some reason are not detecting the second display on wake-up and are not sending any signal to it.
It's strange that the monitor's themselves don't react better to this situation.
hen3ry

Mac Pro refuses to sleep on it's own.

My Mac Pro used to be able to go to sleep by setting the Energy Saver settings to automatically sleep after so many minutes. It no longer sleeps at all on it's own. Lemme explain.
If I put my computer to sleep with the Apple Menu, or Power Button or any other manual method of sleeping my computer, it works but, if I leave it to sleep on it's own only the screen will go black. When I move my mouse, the screen will instantly come back on as if only the screen was sleeping. I know what a normal sleep sounds like... I'd hear a few clicks and hard disk spin downs and then my screen would go black but, it does not do that.
To prevent a bunch of people asking the "Have you tried...?" questions, I'll go ahead and list the things that I have already tried and failed.
1. Repaired permissions
2. Unplugged any external gadget (USB and FireWire)
3. Tried a brand new user
4. Tried Restarting (Hey, couldn't hurt to just Restart)
5. Checked for weird login items (Only EyeTV Helper which has been there the whole time even before the sleep problem)
6. Made sure my software was up to date (latest security and OS Updates)
7. Booted into "Safe Mode"
8. Checked Activity Monitor for any strange processes running
9. Checked for scanner software (Couldn't find it)
10. Tried switching the Mighty Mouse to the right keyboard USB port
11. Tried un-mounting all hard drives (except for boot drive)
I can't think of anything else to try. I can't believe that Safe Mode or a new user couldn't clear the problem. Has anyone else had this problem?
I'm running Mac OS 10.4.9 on a Mac Pro with 3GB of (working) RAM and 3 internal SATA hard drives and 2 internal SuperDrives.

My Mac Pro used to be able to go to sleep by setting
the Energy Saver settings to automatically sleep
after so many minutes. It no longer sleeps at all on
it's own. Lemme explain.
If I put my computer to sleep with the Apple Menu, or
Power Button or any other manual method of sleeping
my computer, it works but, if I leave it to sleep on
it's own only the screen will go black. When I move
my mouse, the screen will instantly come back on as
if only the screen was sleeping. I know what a normal
sleep sounds like... I'd hear a few clicks and hard
disk spin downs and then my screen would go black
but, it does not do that.
To prevent a bunch of people asking the "Have you
tried...?" questions, I'll go ahead and list the
things that I have already tried and failed.
1. Repaired permissions
2. Unplugged any external gadget (USB and FireWire)
3. Tried a brand new user
4. Tried Restarting (Hey, couldn't hurt to just
Restart)
5. Checked for weird login items (Only EyeTV Helper
which has been there the whole time even before the
sleep problem)
6. Made sure my software was up to date (latest
security and OS Updates)
7. Booted into "Safe Mode"
8. Checked Activity Monitor for any strange processes
running
9. Checked for scanner software (Couldn't find it)
10. Tried switching the Mighty Mouse to the right
keyboard USB port
11. Tried un-mounting all hard drives (except for
boot drive)
I can't think of anything else to try. I can't
believe that Safe Mode or a new user couldn't clear
the problem. Has anyone else had this problem?
I'm running Mac OS 10.4.9 on a Mac Pro with 3GB of
(working) RAM and 3 internal SATA hard drives and 2
internal SuperDrives.
Reset PRAM
Trash this file:
/Library/Preferences/System Configuration/com.apple,PowerManagement.plist
Then re-boot. Set Power preferences to your needs.
William

Mac Mini G4 refuses to sleep due to KVM switcher

I have a KVM switcher + powered USB hub hooked up between my Mac Mini G4 and a PC- while the PC is able to enter standby mode, my Mac always wakes up within 3 seconds of entering sleep mode. Belkin tech support said this is due to the Mac receiving USB signals (albeit me not moving the mouse, touching the keyboard, etc), and told me to ask Apple how to disable this feature.
Ideally, I'd like the computer only to wake up from a keyboard signal, but the powered hub might be making that unfeasible. However, I'm okay with taking the Mac out of sleep mode by pressing the button on its back.
Can anyone tell me how to fix this (as my LCD monitor's output is beginning to suffer)?
Thanks,
Jamie

Hi, Jamie. Welcome to the Discussions.
1. You wrote: "I have a KVM switcher + powered USB hub"It's unclear if you mean:
a. Two separate peripheral devices, i.e. KVM switchbox and a powered USB hub.
b. One peripheral device that performs both functions.1.1. Which is it, (a) or (b)?
1.2. If (b), is the USB hub is connected to each computer, or the KVM switchbox? If the former, try the latter. Don't connect the same USB hub directly two two computers2. You wrote: "Belkin tech support said this is due to the Mac receiving USB signals (albeit me not moving the mouse, touching the keyboard, etc), and told me to ask Apple how to disable this feature."If you make any change to USB devices (power them on or off, connect or disconnect them) on a USB chain that connects to the Mac, then the Mac will wake.
This feature cannot be disabled: it is a function of the circuitry.
If you look at the "USB Ports" section of the "Devices and Ports" chapter of the Mac Mini G4 Developer Note, in the subsection entitled "USB Features" you will see:"Wake Up From Sleep
USB devices can provide a remote wakeup function for the computer. The USB root hub in the computer is set to support remote wakeup whenever a device is attached to or disconnected from the bus. The keyboard that comes with the computer uses this method to wake the computer on a key press.
Connect and Resume
The Intrepid ASIC contains special circuitry that allows the computer to wake from sleep mode on connect, disconnect, and resume events. Compatible USB devices should support the USB-suspend mode defined in the USB specification."Therefore, if you put your Mini to sleep, then connect, disconnect, power-on, or power-off a USB device on any USB chain connected to the Mini, the Mini will wake.
3. It may also be that either the KVM switchbox or USB Hub (whether alone or a combined device) could be defective. I one had a similar problem where I'd put one of my Macs to sleep and it would wake immediately. Turned out to be a bad Belkin USB hub. Removing the hub restored normal sleep function.
Good luck!
Dr. Smoke
Author: Troubleshooting Mac® OS X

Putting dual 1.8 GHz G5 to sleep breaks Mac OS X's Console.app

My mother's G5 is having problems with Leopard it seems.
I did a fresh install of Mac OS X 10.5.1 (that's what's on the DVD) and everything seemed fine. I'm quite sure it's after the upgrade to 10.5.6 that the problem happens (of course it can be any of the updates in between too) because if I remember correctly the problem doesn't occur in 10.5.1.
What happens after the wake is that after a few seconds (upon clicking something, i.e. a menu) the beach ball comes up and it takes a minute or so then there's a few seconds where the stall goes away only to come again. I once managed to ask it to restart, but it then got stuck at the spinning cogwheel (shut down process after the menu bar and Dock has disappeared) so I did a forced restart.
After the restart the computer seems OK again, but when trying to launch Console.app to see if there would be anything in the logs Console.app crashes. Something is broken. It was this ”broken Console.app” that made me do the re-install in the first place, so in other words it's the sleep that triggers the problem and also (indirectly maybe) breaks the functionality of Console.app.
Any ideas on this?
As it is now at least version 10.5.6 of Mac OS X doesn't seem to work very well on at least this particular G5 model...

Nap is a power saving feature.
The following processor states are defined:
■ Run: The system is running at maximum processing capacity with the processor running at full speed.
■ Idle: The system is idling; this is the default state. All clocks are running and the system can return to running code within a few nanoseconds. If the system has no work to do, it will be in idle mode.
From idle, the processor will enter deep nap state when the system is power-stepped to half frequency. In this state, the processor’s internal frequency is reduced to 1/64 of the maximum frequency. The processor frequency is returned to normal on exit from idle. The exit from idle takes a bit longer than the regular idle nap but is still in the nanoseconds.

Dual G5 1.8 refuses to sleep

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