Sleep turns off my G4, Screen goes dark and then turns off computer.

Recently my G4 Dual 867 PowerPC shuts off the computer instead of sleeping. Very annoying. Computer works fine in all other ways. Any remedies for this? I have run DiskWarrior but to no avail.
Thanks for your help.

Have you done a PRAM reset, CMD+Option+p+r...
http://docs.info.apple.com/article.html?artnum=2238
How to reset the SMU/PMU on a Power Mac Earlier G3, G4, G5 models...
http://support.apple.com/kb/HT1939
Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, then move these files to the Desktop.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
/Users/YourUserName/Library/Preferences/com.apple.systempreferences.plist
/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist
/Library/Preferences/SystemConfiguration/com.apple.AutoWake.plist
(Then Trash the original of these last two, as "moving" them only copies them.)
Then reboot once more.

Similar Messages

Screen Going Dark and Then Black

Although my computer is not an Intel, I have been following the discussions here because of the flickering problem. I intend to buy the i7 when the next series comes out. I posted my problem on the regular iMac G5 forum but received a very limited response specific to the problem.
My iMacG5 is the initial model and will be 6 years old this coming October. I have not had this problem before.
One day, the computer screen went black. Took it to Apple. Either mother board or power supply. Changed power supply and computer worked but technician damaged screen and bezel. Apple changed screen and bezel front and back. Came home, working fine but notice very slight and quick flickering sometimes. Suddenly, screen went dark and then black. The F14 and F16 keys could not change it. Took it back to Apple but problem could not be repeated. At home, problem occurs. Right now, screen at brightest but then brightness cuts back significantly but screen is as usual except darker. Computer can be used but darker. After a while, screen would go black. Can still hear computer. Fans normal speed. Light at lower right still blinking but when touch space bar or mouse, light at lower right goes off and computer stops but still black screen. When I unplug cable from back and wait 15-30 minutes and restart, screen bright again but then darkens and cycle repeats itself. Screen Saver not on. Beside the bezel, only items change are the power source and the screen.
CHECKED CONSOLE AS BEST AS I COULD. ON TWO OCCASIONS FOUND FOLLOWING NOTICES: BOOT CACHE.PLAYLIST: UNKNOWN ERROR: -1. ANOTHER ONE: LOCAL HOST KERNEL [0] APPLE SM_SHUTDOWN CAUSE = -100. THESE MAY HAVE SOME SIGNIFICANCE ALTHOUGH THERE'S A LOT MORE THAT I DON'T UNDERSTAND.
HOPE SOME OF YOU CAN HELP. Thanks.

You should visit your nearest Apple Store as soon as possible for getting it done perfectly !

IPhone 3GS screen goes black and then turns on and off

Won't reset, just blinks back and forth from black screen to apple logo screen. What can I do?

Try a reset or restore

On my itouch4s, whenever I try to crop photos or play a game while musi is playing in the. Ackground, the screen goes white, and then turns off and back on again? Can the apple store fix this?

I got this just last month for my birthday and it has been doing it since I got it

Try a reset or restore

On iPhone 4, the screen goes dark and freezes when I start Safari

All of a sudden, today I can't access the internet via Safari on my Verizon iPhone 4. If I click on a link in an email or start Safari, the screen goes dark and freezes. What's up with this and what the fix?

Hi
Try holding sleep/wake + power button for 10 seconds, until you see the Apple Logo.
See how that goes.
Taylor

When I turn my ipod on why does the screen stay blank and then turn itself off?

When I turn my ipod on the normal start up screen appears with the apple logo in the middle, but then after a few seconds the screen goes blank and it turns itself off. It was working fine the other day. I even charged it overnight to make sure that it wasnt because it was out of battery. I dont know what to do, it has over 600 songs on it and around 300 photos, I know that the memory isnt full because I checked the other day and it said I had around 1GB left. I cant do anything on at all because the screen just goes blank and then turns itself off. Please help, thank you

Well, I strongly suspect that a gig isn't quite enough "extra" storage to allow operation.
However, first, try a system reset. It cures many ills and it's quick, easy and harmless...
Hold down the on/off switch and the Home button simultaneously until you see the Apple logo. Ignore the "Slide to power off" text if it appears. You will not lose any apps, data, music, movies, settings, etc.
If the Reset doesn't work, try a Restore. Note that it's nowhere near as quick as a Reset. It could take well over an hour! Connect via cable to the computer that you use for sync. From iTunes, select the iPad/iPod and then select the Summary tab. Follow directions for Restore and be sure to say "yes" to the backup. You will be warned that all data (apps, music, movies, etc.) will be erased but, as the Restore finishes, you will be asked if you wish the contents of the backup to be copied to the iPad/iPod. Again, say "yes."
At the end of the basic Restore, you will be asked if you wish to sync the iPad/iPod. As before, say "yes." Note that that sync selection will disappear and the Restore will end if you do not respond within a reasonable time. If that happens, only the apps that are part of the IOS will appear on your device. Corrective action is simple - choose manual "Sync" from the bottom right of iTunes.
If you're unable to do the Restore, go into Recovery Mode per the instructions here.

HI all, i'm using Mac Pro 15" Retina. My screen goes darker and after brighter after a while? How to fix it?

HI all, i'm using Mac Pro 15" Retina. My screen goes darker and after brighter after a while? How to fix it?

System Preferences > Displays.
De-select "Automatically adjust brightness"

Just bought a new iphone4 and was loading os6 and now it won't turn on. the apple glows like it is starting up, then the screen goes black and then repeats the same process over and over. i have tried to reboot multiple times now

just bought a new iphone4 and was loading os6 and now it won't turn on. the apple glows like it is starting up, then the screen goes black and then repeats the same process over and over. i have tried to reboot multiple times now

I am assuming the phone was working prior to you installing IOS 6? Did you use itunes to install IOS 6 or just run from the phone?
When I tried to do the Over The Air update to IOS6 on my iPhone 4, it errored out and I had to connect it to iTunes and select "Restore" from the summary screen after iTunes finds the phone is connected. If this works for you, it will go through a couple of reboots that take a few minutes to complete. It should then give you the option to start with a fresh new phone or to use one of your previous backups to load your contacts and other information, provided you have backed up the phone previously.
I hope this helps you my friend!

When i click on my external hard drive the screen goes dark and a msg pops up saying i have to shut down my computer by holding the power button and then restart it. when i do that i get the same result every time. it worked perfectly last night..

when i click on my external hard drive the screen goes dark and a msg pops up saying i have to shut down my computer by holding the power button and then restart it. when i do that i get the same result every time. it worked perfectly last night..

These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console 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.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Ifou don't see any reports listed, but you know there was a panic, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.
In the Console window, select
DIAGNOSTIC AND USAGE INFORMATION ▹ System Diagnostic Reports
(not Diagnostic and Usage Messages) from the log list on the left. If you don't see that list, select
View ▹ Show Log List
from the menu bar.
There is a disclosure triangle to the left of the list item. If the triangle is pointing to the right, click it so that it points down. You'll see a list of reports. A panic report has a name that begins with "Kernel" and ends in ".panic". Select the most recent one. The contents of the report will appear on the right. Use copy and paste to post the entire contents—the text, not a screenshot.
If you don't see any reports listed, but you know there was a panic, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.
In the interest of privacy, I suggest that, before posting, you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if it’s present (it may not be.)
Please don’t post other kinds of diagnostic report.
I know the report is long, maybe several hundred lines. Please post all of it anyway.

HT3576 When I pull the notification screen down after about 5 seconds the screen goes black and then the apple appears for about 30 seconds and then returns to the home screen, this is an iPhone 4 running ios7 , any ideas??

When I pull the notification screen down after about 5 seconds the screen goes black and then the apple appears for about 30 seconds and then returns to the home screen, this is an iPhone 4 running ios7 , any ideas??

One problem though, the top button on my phone is jammed so i cant power off the phone, anyway of resetting the phone without using the top button ?

TS3274 Hi I have a 1st generation iPad 64Gb, my problem is when I am surfing the Internet or trying to read a magazine that I have bought and downloaded, the iPad closes down the app and the screen goes blank and then back to the home page. Any ideas?

Hi I have a 1st generation iPad 64Gb, my problem is when I am surfing the Internet or trying to read a magazine that I have bought and downloaded, the iPad closes down the app and the screen goes blank and then back to the home page. Any ideas?

Hi Fayed11,
Welcome to Apple Support Communities.
You may find this article useful for troubleshooting any apps on your iPad that aren't behaving as expected:
iOS: Troubleshooting applications purchased from the App Store
http://support.apple.com/kb/ts1702
Have a great day,
Jeremy

Hey ppl,my macbook is not booting and by that i mean u can hear the audio wave when its starting up,the screen goes white and then after a while there's a folder with a question mark in the middle of the screen...anyone,any ideea?!?

Hey ppl,my macbook is not booting and by that i mean u can hear the audio wave when its starting up,the screen goes white and then after a while there's a folder with a question mark in the middle of the screen...anyone,any ideea?!?Regards.

That folder with the question mark icon means that the MacBook can't find the boot directory. That can either mean it can't find the hard drive or the hard drive data is somehow corrupted.
Put your install DVD into the drive and reboot. As soon as you hear the boot chime, hold down the "c" key on your keyboard (or the Option key until the Install Disk shows up). That will force your MacBook to boot from the optical drive.
Once it has finished booting and you are at the Install screen launch Disk Utility from the Utilities menu. Is your Hard Drive in the list on the left?
If it is then select the First Aid Tab run Repair Disk and if that repairs any problems run it again until the green OK appears and then run Repair Permissions.
If your hard drive isn’t recognized in Disk Utility then your hard drive is probably dead.

How come everytime i add an image to my pages document the screen goes blank and then closes the app?

How come everytime i add an image to my pages document the screen goes blank and then closes the app?

Hi Fayed11,
Welcome to Apple Support Communities.
You may find this article useful for troubleshooting any apps on your iPad that aren't behaving as expected:
iOS: Troubleshooting applications purchased from the App Store
http://support.apple.com/kb/ts1702
Have a great day,
Jeremy

IPhone -When I open an email the screen goes blank and then goes to home screen

When I try to pull an email my screen goes blank and then brings me back to home page. Any experience with that?

Hi Fayed11,
Welcome to Apple Support Communities.
You may find this article useful for troubleshooting any apps on your iPad that aren't behaving as expected:
iOS: Troubleshooting applications purchased from the App Store
http://support.apple.com/kb/ts1702
Have a great day,
Jeremy

Ipad screen goes dark and unable to power on

my ipad screen goes dark when charged as usual, then unable to start. What's wrong with it? How to slove the problems?

Turn off VoiceOver
1. Press the Home button
2. Tap Settings.
3. Then double-tap Settings.
4. Tap General.
5. Then double-tap General.
6. Use three fingers on the screen to scroll to Accessibility
7. Tap Accessibility.
8. Then double-tap Accessibility
9. Tap VoiceOver
10. Then double-tap VoiceOver.
11. Tap "On" next to VoiceOver
12. Then double-tap "On" to turn it off.

Sleep turns off my G4, Screen goes dark and then turns off computer.

Similar Messages

Maybe you are looking for