My screen blacks out and mac goes to sleep.

My screen blacks out and mac seems to go to sleep. Starts up again after 30 seconds. This occurs after installing mountain lion.

Intel-based Macs: Resetting the System Management Controller (SMC)

Similar Messages

My screen blacks out and computer starts up again due to an error. Anyone any suggestions what could case this?

My screen blacks out and computer starts up again due to an error. Anyone any suggestions what could case this?

Hello nattygrimm,
I was looking into the issue you are describing and found a great resource to try and fix the issue without having to re install the OS. It is an article called Mac OS X: How to troubleshoot a software issue found here: http://support.apple.com/kb/HT1199.
I recommend starting here:
The first and easiest test to try is to see if the issue affects a different user account on your Mac. Each user account has customized preferences and other items stored in its home directory. You'll first need to create an additional user if one does not already exist (follow steps a-h below). Then, log out of the current user and test the issue in the new user account.
If this resolves the issue, there may be an issue with a file in the home directory of the original user account.
From the Apple menu, choose System Preferences.
From the View menu, choose Accounts (or choose Users if using Mac OS X v10.2 or earlier).
Click "+" (or click New User if using Mac OS X v10.2 or earlier).
Give the new user a name and short name.
Mac OS X v10.3 or earlier only: Click the Password tab, and give the user a password.
Mac OS X v10.3 or earlier only: Click Security.
Select the checkbox for "Allow user to administer this computer". This makes the user account an administrator.
Click OK, or quit System Preferences.
Work your way down the article as needed.
All the best,
Sterling

I dropped my ipad and the screen blacked out and could not be turned on even after pressing the sleep and home button

I dropped my ipad and the screen blacked out and could not be turned on even after pressing the sleep and home button.
I tried connecting the device to my computer and itunes said that it could not identify my device.

What to Do When Your iPad Won't Turn On
http://ipad.about.com/od/iPad_Troubleshooting/ss/What-To-Do-When-Your-Ipad-Wo-No t-Turn-On.htm
iOS: Not responding or does not turn on
http://support.apple.com/kb/TS3281
iPad Frozen? How to Force Quit an App, Reset or Restart Your iPad
http://ipadacademy.com/2010/11/ipad-frozen-how-to-force-quit-an-app-reset-or-res tart-your-ipad
iPad: Basic troubleshooting
http://support.apple.com/kb/TS3274
 Cheers, Tom

My ipod screen blacked out and wont let me see anything but it will play music

my ipod screen blacked out and wont let me see anything but it will play music. how can i fix it or cani get a new one?

- A reset. Nothing is lost
Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Restore from backup
- Restore to factory settings/new iPod
If you still have the problem that indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
If not under warranty, Apple will exchange your iPod for a refurbished one for this price:
Apple - Support - iPod - Repair pricing
A third-party place might be less expensive. Here is one. Google for more.
iPhone Repair, Service & Parts: iPod Touch, iPad, MacBook Pro Screens

Screen blacking out and freezing when phone is charging

I have noticed sometimes my phone is blacking out and the only way to get the screen to come back up is to remove my battery. It happens about 2 or 3 times a day. Also, when charging my phone I will press an app or phone number and it goes to a completely different app or contact. Does anyone know how to fix this?

ive had an issue similar to this. my music worked for about a month then kept freezing on me. it wouldnt go back to the main screen or anything in the music player the screen just went black and my phone completely froze. however a hard reset worked for me. when you have an issue like this that can be resolved any other way this fixes it however i would use it as a last resort as a factory direct reset erases everything even backed up information on your sd card because everything is reset to the way when you first bought it out of the store. if you think this will work for you here is the quickest and easiet way i have found to do it:
turn droid 2 off
open keyboard and press x while holding the power button
device will power on
keep holding until a yello triangle appears
press the magnifying glass on your keyboard
use the volume button to select wipe data/ factory reset
use camera key to confirm
tap wipe data/factory reset
then ok
highlight reboot system now
then ok

Snow Leopard upgrade causes screen black out and freeze

I have Mac Pro (2008) 3.1 with ATI Radeon HD 2600. During the installation of the Snol Leopard my screen went black and only switch off and on worked. After the problem happened more ofter especially when the system came back from sleep mode. Again several switch off and on helped. Later the screen went black just during normal usage. I have tried to get the screen with vnc from a laptop and it worked.
On the console I have seen windowsserver erros when the screen went black. After the screen just froze and the cursor turned to a transparent square. Whole system become unresponsive. The problem came more and more often. I was so desperate that I had to reinstall 10.5 again and I do not have the problem any longer.
Any idea what the problem can be?

HI,
Boot from your install disc and check the startup disk for errors.
Insert your install disk and Restart, holding down the "C" key until grey Apple appears.
Go to Installer menu and launch Disk Utility.
Select your HDD (manufacturer ID) in the left panel.
Select First Aid in the Main panel.
*(Check S.M.A.R.T Status of HDD at the bottom of right panel. It should say: Verified)*
Click Repair Disk on the bottom right.
If DU reports disk does not need repairs quit DU and restart.
If DU reports errors Repair again and again until DU reports disk is repaired.
When you are finished with DU, from the Menu Bar, select Utilities/Startup Manager.
Select your start up disk and click Restart
While you have the Disk Utility window open, look at the bottom of the window. Where you see Capacity and Available. *Make sure there is always 10% to 15% free disk space*
Also, run the Apple Hardware Test

I am unable to take or send pictures in message. Once I hit take a picture or video my screen blacks out and I'm thrown out of the message completely. I can only send pictures from iPhoto help!!!

HHi. I'm unable to take and send pictures or videos from messaging. Screen completely turns black and I'm kicked out of messaging

Try a reset by pressing and holding the home and power buttons until the white Apple logo appears.
ReneeMouilso wrote:
My second issue popped up just a few days ago. I am unable to send a picture to anyone via email (gmail). I checked to make sure MMS is enabled (it is) and I certainly have MMS provided through Verizon.
MMS has absolutely nothing to do with email.
Is this the only email account on the device? If not, are you able to email pictures via other accounts?
Are you able to send emails with pictures attached from the gmail account on a computer?

My Mac screen blew out and is frozen

After the first few screen freezes, the screen would be pixelated and I had to unplug my computer and restart. It would turn on successfully but my whole screen would have little pixel squares. I ignored that fact and was just happy my computer turned on. Moments later, my screen blacked out and I tried to do the same thing. Only this time the screen stays on to the open apple screen with pixels everywhere.. I don't know how I can solve this problem or if it can even be solved..

I can't run the hardware test or do anything at all.. I turn my iMac on and it goes I a white screen with the apple icon and then goes to a blank white screen. I would like to get it checked out but the nearest apple retail store is 2 hours away..

I have a problem with my mac, lit with blank screen loading bar and then goes out, I need assistencia on line or contact the Technical Support Service in Argentina

I have a problem with my mac, lit with blank screen loading bar and then goes out, I need assistencia on line or contact the Technical Support Service in Argentina

Priscilla,
if your Mac is still in warranty, then you should contact the Argentinian technical support service. If it is out of warranty, then we can try to lend a hand. (We’re just fellow Apple product users here.)

Firefox 4 blacks out and distorts sections of the screen if I scroll on a website, navigate the bookmarks or sometimes just randomly.

Firefox 4 blacks out and distorts sections of the screen if I scroll on a website, navigate the bookmarks, at the addons/extensions menu or sometimes just randomly. Occasionally this causes it to crash often with the rest of the computer (no crash report). The previous versions of firefox all ran fine.

I seem to have fixed this by setting layers.acceleration.disabled to true (In about:config). I assume this is something to do with graphics hardware acceleration but I am not sure what the wider consequences of changing this setting are. Nothing seems to be going wrong so far though.

Problem with my laptop colour changing and some time moniter screen black out

i have a problem with my laptop screen some time its working ok but some time its going to changing and blinking colours and screen shows black out and not respend for 10 minutes or more.i want a solution for this.

Hi @hpsah
Welcome to the HP Support Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I see that you are having a problem with your laptop screen changing and blinking through colours. I will be happy to help find a solution for this but you didn't give me information to work with. For future posts I suggest checking out Want Good Answers? Ask Good Questions. I will need to know what operating system you are using? What is the product number of the notebook? Does this issue happen if you connect an external monitor?
Please click “Accept as Solution ” if you feel my post solved your issue.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Thank you,
BHK6
I work on behalf of HP

Screen blacks out after a few seconds and won't return to normal state.

I have the 30 gig ipod photo that i got about a year and a half ago. Whenever I look at the screen to access music or anything, the screen blacks out like there's a screensaver or something and won't return back to normal. Even after I reset it, it stays normal for a few seconds and then blacks out again. The backlighting still works so it's just a bright black screen and I have function of the click wheel because it clicks everytime I move up or down. I already tried restoring it so I am all out of options. Anyone PLEASE HELP!!! Thanks
Steve

This happens rarely but consistently! I't seems to happen about 5% of the time waking from sleep. It MAY be more prone to happen if I had been moving with it in my bag, but it can happen at any waking time after any duration of sleep.

HT1212 my iphone 5's screen blacks out every now and then. the phone is turned on but the screen is black and i can receive calls. what is wrong with my phone

my iphone 5's screen blacks out every now and then. the phone is turned on but the screen is black and i can receive calls. what is wrong with my phone?

I have to believe this has something to do with iOS 7 issues. I have taken my screen blacked out 5s twice to the Genius Bar and the found a bunch of system apps had crashed. So if this is the case, is iOS7 the problem?

Why does my Macbook Pro Suddenly will suddenly black out and freeze I can't do anything and I am always forced to force off my mac.

This always happens to me but recently it's happens more and more. Sometimes When I use it to game or do work or skype it will eventually black out and forze. I always have to hold my power button down to force off my Macbook pro. What is the caused of the proble and will focing off my macbook constantly spoil my mac?

In very rare cases resetting SMC has solved this problem.
http://support.apple.com/kb/HT3964
Hope it helps.

Windows XP mouse halted and screen blacked out!

When I boot up with boot camp and dragging some windows size (like IE or Excel). The mouse pointer halted and after a few seconds the screen blacked out just like the machines is turned off. However, I discovered that the system is still running. I can perform the shut down action by input from the keyboard.
The problem does not exist when I start windows xp through VMware Fusion.
Did anyone encounter the same problem??
I just bought the iMac a few days.

Thanks for your reply, I have a wireless mouse/keyboard & called manufacturer to test both & they told me to plug the wired ones in & they did not work & the laptop has no plug for wired ones because those have rounded ends, laptop has wrong size/shape usb ports, so there is no way to test them on laptop, so now I'm hoping you or someone has an idea of what to do next, thank you for your ideas.
Teddy2014 wrote:
had the same issue, un plugged mouse, reconnected in another port and it worked. Bought another mouse, all is well

My screen blacks out and mac goes to sleep.

Similar Messages

Maybe you are looking for