Sleep Issues with 20" Intel iMac

I am having trouble with the iMac not "waking up" from sleep mode. In fact, it's not a full sleep. I have the machine set to "never" go to sleep. I do have the screen set to go dark after 30 minutes of inactivity. I also have the "turn hard drives off when possible" NOT checked. So the machine is supposed to never sleep, just the display. After 30 minutes the screen does go dark and I can wake it successfully. However, if the screen goes dark and is left off for several hours, like over night, then it will not wake up no matter what. Requires a hard re-boot. I have tried to reset whatever chip it is by unplugging the machine completely, etc, and that did not seem to help. I have no new software installed other than what came pre-installed on the mac. Any thoughts? It is frustrating that I can't leave the machine on.
20" Intel iMac Mac OS X (10.4.6)

hey!
have you applied the firmware update to your imac?
i like to do my own OS installs with new machines, this may be a bit drastic for your problem, but it would be something i would consider, just to have the operating system done by myself. are there applications you launched/have open when this happens?
you could also check in =>your drive=>library=>start up items and see what if anything is there...[move it out[but don't toss], reboot and check if your better off]
also go to system preferences=>accounts=>log in items and see what is enabled there. if anything is there, enabled, unclick it, re start and again verify if it 'was the culprit'... check back here, if those things are tried with/without success...
g5/2 gig/1.5 gig ram Mac OS X (10.4.6)

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Anyways, the computer randomly and frequently goes to sleep. The hot corners are not set for that, infact in the settings i've set it to never go to sleep. Some days, like in the last hour, the computer will go to sleep, i wake it up, and within a minute, it goes back to sleep. Some days it wont go to sleep at all. The problem seems to be truely random. The only programs running are Entourage, Safari and Adium, sometimes Itunes and Filemaker.
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First read Apple doc.#25801 on sleep settings.
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:
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-/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.
Yours could be the 10.3.9 Combo update (you did'nt say what version you are using). Others reading, download the combo update that applies to you!
Cheers!
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Sleep issues with iMac

I have an iMac, first gen, that when I put into sleep mode, it will wake up right away. All software is up to date, running 10.6.8.

Test after each of the following steps:
Step 1
 ▹ System Preferences ▹ Energy Saver ▹ Power Adapter ▹ Wake for network access: uncheck. You may need to unlock the preference pane by clicking the lock icon in the lower left corner and entering your administrator password.
Step 2
 ▹ System Preferences ▹ Energy Saver ▹ Schedule… ▹ Start up or wake: uncheck
Step 3
 ▹ System Preferences ▹ Print & Scan ▹ Open Print Queue...
Check all printers for unfinished jobs. Deal with any you find.
Step 4
Disconnect all wired peripherals except keyboard, mouse or trackball, and monitor, if applicable.
Step 5
Launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ If you’re running Mac OS X 10.7 or later, open LaunchPad. Click Utilities, then Activity Monitor in the page that opens.
Select All Processes from the menu in the toolbar, if not already selected. Enter “powerd” (without the quotes) in the "Filter" text field. Select the powerd process and click the Quit Process button in the toobar (stop-sign icon.) In the sheet that opens, click Force Quit. You’ll be prompted for your administrator password. The process will be relaunched immediately.
Step 6
Boot in safe mode and log in. The instructions provided by Apple are as follows:
Be sure your Mac is shut down.
Press the power button.
Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Safe mode is much slower to boot and run than normal. Don’t launch any applications at first. If sleep still doesn’t work properly, back up all data and reinstall the Mac OS. After that, if you still have the issue, make a “Genius” appointment at an Apple Store to have the machine tested.
If sleep now works as expected, go on to the next step.
Step 7
Still in safe mode, launch the usual set of applications that are running when you have the problem, including your login items, one at a time, testing after each one. Some applications may not work; skip them. You might be able to identify the cause of the problem this way.
Step 8
If sleep is still working after you’ve launched all the usual applications, reboot as usual (not in safe mode) and test again. If sleep still works, you’re done, at least for the moment.
If you still have the sleep issue after booting out of safe mode, post again.

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It sounds like the GPU is failing to wake. Are you up-to-date with your Intel drivers? First check Lenovo's latest, and if that doesn't work, try the Intel drivers using the Intel Update Utility:
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Tap that kudos button if I helped ^^
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WoW Freezing with new intel iMac

Posted this in the wrong forum so re-posting here.
I play World of Warcraft and I recently upgraded to a new 17" iMac. Here are the specs -
17" iMac Core 2 Duo 2.0GHz
2GB RAM (Apple installed)
ATI Radeon X1600 128 VRAM
Mac OS 10.4.9
Now I used to have a 17" intel mac 1.8GHz model and it NEVER had any problems playing WoW but this new machine will constanly freeze solid at random times while I'm playing. I cannot switch to another window, bring up the dock, or anything else. I have to hold in the power button to shut it down.
I ran Apple Hardware Test extended and it found no problems. The RAM is stock Apple ram. I dont have any 3rd party peripherals connected. I reinstalled WoW and even archive installed to 10.4.8. Disk utility reports no problems.
So after trying all of this I broke down and purchased WinXP and installed it via bootcamp and I've been able to play WoW with ZERO lockups while booted to WinXP. There was one single time where the game kicked me back to the desktop and I got the following error message "VPU Recover has reset your graphics accelerator or it was no longer responding to graphics driver commands". WoW was still active and on my taskbar and I was able to click it and continue playing without any problems.
I've been back and forth with WoW tech support and they claim that its probably an issue with the video card. The only time I have problems is when I'm playing WoW. Everything else works fine.
Is there anyone out there that can help me narrow down the issue? I installed the developer tools and I'm willing to try Shark and Spin Control to help diagnose this problem I just need a little guidance.
The lockups are random and as far as I can tell when it happens the sound continues on as normal. All of my graphics freeze but my mouse cursor still works. If I'm playing in windowed mode the cursor still works but I am unable to click WoW or any other windows or the dock. Force quit menu does not come up.
Help!

While I don't have an answer for your specific problem, I can say I have the same video card and WoW runs very well here without any problems (less RAM, too). I'm finding it hard to believe it's the video card when you say your XP install runs without glitches.
I'm curious if you've tried playing other 3D games on OS X without experiencing similar problems. Warcraft 3, Unreal Tournament 2004, anything.

10.9.2 update sleep issue with NEC monitors confirmed

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Spent two hours with Apple Care (level one and level two) people that didn't have a clue what was going on. Called NEC and they had no explaination.
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This is not an AppleCare issue, it is an Apple bug that you didn't want and will be addressed by AppleCare representatives. Your are helping out the communnity. If they don't believe you, refer them to this discussion. They never tell you about the 90 day software exception clause for free techsupport when one updates to a major MacOS change. I found that sending in a known bug where many people are experiencing it through AppleCare where they end up uploading your OS data to their engineers gets more attention than going to Apple.com/feedback. The more people who report it, the quicker it gets addressed.
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You pay good money for only quality equipment so a wierd bug like this should not occur on a little update.
I have reported this to Apple and NEC but need others to light a fire under those in charge to make a change and not have us wait for one or two updates later.
If you want to request NEC to jump in to getting this fixed, send a message to the NEC monitor product manager (Art Marshall): [email protected]

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Hi, I am a new iMac owner.
Being a network engineer and having worked for the "devil" himself, let me tell you... I would rather be dealing with the tiny glitches with the new iMac than owning a Dell, Toshiba, HP but most importantly running Vista!
This is a new machine with new HW and drivers. I enjoy trying the latest and the greatest. I realize there will be hurdles to overcome with any new product, but come one people! Let's stop whining, and help everyone out here. We are all here to provide constructive feedback to Apple while helping everyone out.
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Yes there are Keyboard issues.
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Target disk issues.. Yes
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I think few, if any people claimed they were going to ditch their new iMac for a PC. I like Macs, but I don't love them like I used to.
Half the reason people buy them, is because they think they can rely on Macs more. They are supposed to be stable, fuss free and easy to use. And they still are for the most part.
But these new iMacs make a complete mockery of that because they don't represent very well what Apple stands for. "If" I bought a PC I would honestly expect some problems here & there. Its just part and parcel of the PC package. And although I don't expect Macs to be 100% perfect 100% of the time, I certainly expect better than this diabolical shambles that is the new iMac.
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Faxing will work on your iMac, first, if you have bought a modem (Intel iMacs don't have internal modems), second, if you use a dial-up connection (some broadband providers offer the possibility to send faxes even with a DSL line, at least here in Italy).
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Help with 2005 Intel iMac

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Well, you have to understand that I got sidetracked by the 2005 date you put in your post. You take a look at this:
That is your Mac and it wasn't introduced until September 2006 - that makes it clear that's it's an Intel.
In any case, glad to hear the install is working!

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I had an Early 2011 Macbook Pro that worked quite well with an external display. I now have a Mid 2012 Macbook Pro (bought 5 days ago, and running 10.10.3) that will not consistently work with the same external monitor.
I had it working yesterday for a few hours only if I left the MBP with the top open (both the MBP screen and external monitor stayed lit). But, today it is back to freezing each time the monitor is connected to it.
I have tried:
1. Connecting the external monitor to the MBP with the top open. Results in the MBP screen now going dark and no signal being passed to the external monitor. If the external monitor is disconnected, the MBP screens stays dark and the computer is unresponsive requiring a hard restart.
2. Connecting the external monitor to the MBP with the top closed. Results in no signal being sent to the external monitor. Disconnecting the external monitor and reopening the MBP yields, again, and unresponsive computer which requires a hard restart.
I have tried three different external monitors, all giving the same result. The MBP is connect to external power, and I am running the latest OS (10.10.3).
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Hello there, Gaflin.
I'm sorry to hear you're having so much trouble getting your external display to work the way you are expecting with your new MacBook Pro. The following Knowledge Base article provides a great checklist of steps for troubleshooting the issue you seem to be describing:
Apple computers: Troubleshooting issues with video on internal or external displays - Apple Support
No video or no signal, image distortion, "snow," or flickering
Check connections
When using an external display be sure to check the following:
If you're using an Apple notebook, confirm the AC power cable or adapter is securely connected to the computer and the cable providing power to the display is also secure. It is always good to have your notebook connected to AC power when an external display is in use.
Confirm display adapters are fully seated in their respective connections and that they are supported models and for the computer and display. Refer to these articles to assist you with adapter compatibility and further configuration information:
Monitor and Display Adapter Table
About Mini DisplayPort to HDMI adapters
Apple Mini DisplayPort adapters: Frequently asked questions (FAQ)
Thunderbolt ports and displays: Frequently asked questions (FAQ)
Remove all display cable extenders, KVM switches, or other like devices and retest to determine if the issue is resolved.
Try unplugging the video adapter or cable and then plug it back in.
If more than one video adapter is in use (or "daisy-chained"), troubleshoot by using only one adapter.
Example: A mini DisplayPort to DVI adapter connected to a DVI to HDMI adapter is an unsupported configuration because there is a series of adapters in use.
If available, try using a different display and or adapter (or use a different connector by using DVI instead of VGA, for instance).
Reset the system
You can reset the Mac's parameter RAM and SMC.Reset the resolution
Start by resetting the Mac's parameter RAM. If the display does not come up, was previously set to an unsupported resolution, and still results in no video:
Start up in Safe Mode.
From the Apple () menu, choose System Preferences.
Choose Displays from the View menu to open the preferences pane.
Select any resolution and refresh rate that your display supports.
Restart your computer.
Using Closed lid, Extended Desktop, or Mirroring display modes
When using multiple displays, information can be presented in a number of ways. For more information and what modes are supported by your Apple product refer to:
Apple Portables: How to use your computer in closed lid (display closed) mode with an external display
How to use multiple displays with your Mac
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro.

No fan noise with new intel iMac?

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Did as you suggested and still cannot hear any fans. My first G5 unit was the same way till the logic board fried and was replaced. Now it sounds like a jet engine every time it starts to work hard. I hope this one doesn't turn out the same way. My first unit is in the shop right now for it's second logic board and a new power supply.

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