Apple LCD Keeps flickering a balck screen while coneected to my Powerbook

I have attached my apple 24inch LCD screen to my Mac Powerbook and the LCD keeps flickering a balck screen in intervals. Can any one help?

Why not post in notebook forum:
MacBook Pro
https://discussions.apple.com/community/notebooks/macbook_pro
https://discussions.apple.com/community/mac_os?view=discussions
http://www.apple.com/support/macbookpro

Similar Messages

My new MacBook Air keeps shutting down the screen while I use it

My new MacBook Air keeps shutting down the screen while I use it and has to be rebooted. I took it in to the Genius desk at my local store, but they couldn't find anything wrong and said that they have never seen this problem before.
I Spoke to the IT support guy at work. He has the same problem with his new MacBook, but not with his older one. He suggested that it is a software issue with all new MacBooks and is connected to the timing of it going into sleep mode. Does anybody have a solution? Apple doesn't seem to have one.

Try a SMC reset.
http://support.apple.com/kb/HT3964

My Macbook Pro with Retina display screen keeps flickering a ghost screen.

My Macbook is a year and a half old, and has never been dropped or damaged. A few months ago, the screen started flickering. Not like off and on, but a ghost screen would flicker on top of what I was doing. It is usually the same window that I have present, but just like half of it for a millisecond. It is very annoying and is unpredictable. It usually happens for hours every few seconds. What should I do to fix this? I try to take a screen shot to post but it either happens too fast or is not possible to record.

Hi dulceprincesa,
Welcome to the Support Communities!
The article below may be able to help you with this issue.
Click on the link to see more details and screenshots.
Apple Computers: Troubleshooting the slot-loading SuperDrive
http://support.apple.com/kb/HT2801#
Cheers,
- Judy

Does the apple logo keeps flashing on and off while restoring

My ipad fell in water and went blank i tried restoring it would show a hardware problem.I got that fixed but it kept showing not charging sign then i forgot my pasword and tried restoring it to the factory setting but mid way it said ur ipad cannot be restored but the restoring process kept going on with the apple icon flashin one too many times in between. please advise.

Try and force iPad into Recovery Mode
1. Disconnect the USB cable from the device, but leave the other end of the cable connected to your computer's USB port.
2. Turn off the device: Press and hold the Sleep/Wake button for a few seconds until the red slider appears, then slide the slider. Wait for the device to turn off.
3.While pressing and holding the Home button, reconnect the USB cable to the device. The device should turn on.
4. Continue holding the Home button until you see the "Connect to iTunes" screen. When this screen appears, release the Home button. iTunes should alert you that it has detected a device in recovery mode. Click OK, and then click Restore to restore the device.
Note: Data will be lost. You may have to repeat the above many times.

HT5624 Old apple id keeps coming up on screen

Old apple I'd keep showing up on screen

Maybe this too:
- Apps are locked to the account that purchased them.
- To update apps you have to sign into the account that purchased the apps. If you have apps that need updating purchased from more than one account you have to update them one at a time until the remaining apps were purchased from one account.

HELP MY IPOD TOUCH SCREEN KEEPS FLICKERING

MY IPOD TOUCH SCREEN KEEPS FLICKERING. THE SCREEN FLICKERS WHITE AND SOMETIMES IT FLICKERS SO MUCH THAT I CANT SEE ANYTHING. WHAT CAN I DO?

there's no need to shout. (typing in all capitals is generally considered shouting, and is unnecessary).
have you tried the 5R troubleshooting steps?
http://www.apple.com/support/ipodtouch/troubleshooting/ipodtouch/

Running flash full screen while using other apps

I run a 3 monitor setup on Win7x64. I would like to watch shows, eg Hulu, while working on other stuff on the other monitors. Any time I switch focus to another program though it drops back down into the browser. Is there a way to keep it running full screen while working with other programs?

Hi, here is a thread where it was discussed and the person that answered should know.
http://forums.adobe.com/message/2716538#2716538
You might take a look on the right hand side under "More like this" just to see what others have to say even tho there doesn't seem to be a solution to this.
Thanks,
eidnolb

Won't respond. Have a blue screen that keeps flickering.

My MacBook pro is not responding. It has a blue screen that keeps flickering. Power button does not even work.

Safe Boot by restarting your computer while holding down the "shift" key. Safe booting disables all nonessential processes, often times allowing you to start up when you would otherwise crash.
As of OS X 10.5.6 Safe Boot deletes the dynamic loader shared cache location in the /var/db/dyld directory. A corrupt cache here can cause the blue screen crash. Once you restart normally, the cache will be recreated. This should take care of the issue.
http://support.apple.com/kb/HT1564
http://support.apple.com/kb/HT1455

What keeps making the cyclical noise while in sleep. Sounds like iMac is loading a graphic or different screen.

What keeps making the cyclical noise while in sleep? Sounds like iMac is loading a graphic or different screen. Does it periodically while in sleep mode. How do I correct this? Just started doing it in the last few months.

I finally figured out how to fix this. First I reviewed "Mac OS X: Why your Mac might not sleep of stay in sleep mode." I noted the bullet: "Do you have any other external USB or Firewire devices connected?" I have an CP685AVR for a UPS for my Mac. I replaced the battery a few months ago. I also hooked up Apple's 'Energy Saver' power management software to the CP685AVR using the USB connection. I disconnected it, and that solved the problem. I still have the UPS and battery back-up; I just can't "monitor" the battery. What's to monitor? It always said the battery was 100% charged even right up to the time the previous battery failed. Thanks for listening, uh... reading.

My iphone keeps flickering on the load up screen and my screen goes from blue to black and keeps flickering any solutions?

as i said my iphone keeps flickering on the load up screen the apple logo goes back and forth and the screen changes colour from black to blue, help!?

You don't say which year it is, but if it's a 13" you're not having a common GPU that some 2010 and 2011 15" models are having.
Since reinstalling the OS didn't help, I'm afraid that the only real choice you have is to take the machine to your local Apple Store or an AASP and have them run diagnostics on the machine. It's likely a screen problem, rather than a logic board problem (although that's always a possibility).
The testing is free as if the estimate for repair. There's really nothing else you can do yourself at this point.
Sorry,
Clinton

The inner screen to my ipod 4th gen is cracked at first it was no big deal but now the screen keeps flickering and i cant use it. a grey spot appeared andnow it takes up 1/4 of the screen what should i do?

the inner screen to my ipod 4th gen is cracked at first it was no big deal but now the screen keeps flickering and i cant use it. a grey spot appeared andnow it takes up 1/4 of the screen what should i do?.need help, i also dont have the warranty any more.

Apple will exchange your iPod for a refurbished one for $199 for 64 GB 4G and $99 for the other 4Gs. They do not fix yours.
Apple - iPod Repair price
A third-party place like the following maybe less. Google for more.
iPhone Repair, Service & Parts: iPod Touch, iPad, MacBook Pro Screens
Replace the screen yourself if you are up to it
iPod Touch Repair – iFixit

Flickering between password screen and apple logo?

my ipad 2 keeps flickering between the password entry screen and the apple logo on a black screen every second, bleeping as it switches between the two screens. This will go on indefinitely and no individual button is receptive, for example you can not alter the beeping volume.
I have left the ipad until the battery drained, but when placed on charge it starts going through the same process, flickering between the two screens. I have tried holding the home and power down buttons in as suggested on these forums but although it reboots as such it starts to beep and flicker between the two screens.
Has anyone any clues, the beeping is getting a little annoying.

Yes, it concerns me a little as well. Make sure you are running the latest version of iTunes and you could try uninstalling and reinstalling iTunes. That may be the issue causing iTunes to think that the iPad is an iPhone.
Before you try that, try different USB ports on your computer. Don't use a hub. Make sure you connect directly to the computer. You could try rebooting your computer as well.
Here are instructions to remove iTunes.
For Windows Vista or Windows 7
http://support.apple.com/kb/ht1923
For Windows XP
http://support.apple.com/kb/ht1925
I know you feel this way too, but I don't want your situation to get any worse with trying too many things. I know you are "dead in the water" anyway with the iPad but still - you don't want to exacerbate the problem.

I upgraded iphone 4s to iOS6. Now phone just keeps rebooting with the apple sign showing on a black screen. It does not completely start up.

I upgraded iphone 4s to iOS6. Now phone just keeps rebooting with the apple sign showing on a black screen. It does not completely start up.

Hi Lisa 1952,
What have you done so far to try to fix it? I've tried rebooting several times and it did not work. Tried connecting to iTines but it does not recognize the iPhone.
My other iPhone 4s restarted successfully after the updgrade but some apps don't function properly. It automatically closes while in use.
Apple please help. I know it's the weekend but I need the other iPhone to work. Can't use sim with a diffrent phone because it's a micro sim!

My ipod 5th gen ios 7.0.6 crashed and keeps going from the apple logo, going to a black screen, back to the apple logo, then back to the black screen and so on. Furthermore, my laptop doesn't recognise that the iPod is connected. What do I do?

My ipod 5th gen ios 7.0.6 crashed and keeps going from the apple logo, going to a black screen, back to the apple logo, then back to the black screen and so on. Furthermore, my laptop doesn't recognise that the iPod is connected. What do I do?
Please help me out as this is very irritating. This has been happening for the last 20-30 minutes. It had roughly half battery left.

Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try another cable
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

Flickering Screen while Using

Does anyone have the "flickering/blinking" screen while using the laptop? I also used the stress test and nothing has found.
Thinkpad w510
Core i7 Q820 @1.73GHz
8GB ram
Windows 7 64bit

mikesd wrote:
Turn off visual bell. In your screenrc add:
vbell off
Check the man page for details.
Problem solved. Thanks.

Apple LCD Keeps flickering a balck screen while coneected to my Powerbook

Similar Messages

Maybe you are looking for