I have now 25 lines of dead pixels on my screen! help me please! i have an 17" iMac4,1

i started with one line across the screen vertically now its 25 lines...

Welcome to Apple Support Communities
Do these lines move or they are in the same place? If they are in the same place, the screen got damaged. If they move, your graphic card is damaged.
Apple doesn't provide support for this computer. If your graphic card has to be replaced, you have to search a new logic board for your computer model, so it's better to buy a new Mac. If your display has to be replaced, you have to search for a new one, being easier

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Line of "dead pixels" on the screen that come and go.

I just did a clean erase and install, i'm using leopard with all the current updates. i noticed the system was leaving lines on the screen before the fresh install so i figured it was a software problem. well, after doing a clean install they are back. its like the video isn't processing correctly or something because i can put another window on top of the "dead pixels" and it covers them up, like the in this picture. http://farm4.static.flickr.com/3269/2442796153fb66961090o.png
the finder window is covering an inch or so over the dead pixels. and to clarify the line of dead pixels or what ever they are appear to associate with a certain window or app and show up at different parts of the screen. for instance, if i see the lines in firefox, i can minimize the window and the line is gone.
this is on a 24inch white imac with the 2.16 c2d.
any ideas what would make this happen?
Message was edited by: DagYo!

There are quite a few posts about this sort of thing.
Many peopel find some minutes to hours after the lines of pixels the Mac freezes - mouse still moves but you can't do anything.
It's not clear if it's software or hardware.
My suspicion is that it's a software problem but I may be wrong. Either graphics memory or RAM used for buffering is faulty, or something is inadvertently writing garbage to graphics memory.
Most people attribute the issue to Leopard, but I'm still running Tiger.
Lots of posts about it being an nVidia card driver issue, but I'm running ATI.
Maybe coincidence but my 20" late 2006 iMac started playing up after a security update earlier this year.
Some people have had graphics cards replaced and it's cured it, pointing at hardware.
Another thing that seems to help is upping default fan speed using say smcFanControl.
Two things that have made this less frequent for me are:
- turning off Genie effect in Sytem Prefeerences for minimising/maximising windows (I often got freezes when changing windows)
- running smcFanControl
There is some debate as to whether or not for some reason the fans are not speeding up properly (software/EFI or SMC problem?) in response to higher temps and hence components are becoming unstable.
Try some searches on 'glitches' or 'freezing' or browse through the last couple of weeks threads.
If your machine is under warranty I'd be phoning Apple. Mine alas is not.
AC

17" iMac intermittant line of dead pixels

Bought a new 4th gen 17" imac on Aug 13. Aug 15, new imac has horizontal line of "dead" pixels 1/3 of the way from top of screen that goes right across. I say "dead", as they are not truly dead pixels, they are just not displaying correctly. This is a problem that only seems to occur when I wake the computer or the monitor from sleep. It will stay like this for a while, and then it will eventually disappear. The only solution I have found so far is restarting the computer (pain in the butt), but this also seems to fix it self every now and again by pulling up the dashboard or by other random actions (I would rather deal with this ANY DAY over dealing with Vista or any other PC for that matter).
Before going through the ordeal of taking my computer back to Future Shop (Canada's Best Buy) and getting them to look at it (I will be without computer for weeks) has anyone ever experienced this, and do you know of a permanent solution?
On a side note, sometimes (but only sometimes) when this occurs, my dock also will not unhide when I mouse over. I know how to fix that issue, but perhaps these issues are related.

I have a similar problem but my line is not intermittant but is here to stay.
http://www.flickr.com/photos/99974871@N00/1259435122/
My problem has a solution called 600$, the cost of a new LCD panel

I have two strips of dead pixels ..

I have two strips of dead pixels, running vertically down the screen, 1 in the middle and one on the right hand side, what are they?

Your post reads as though a decode line may be inoperable. If the iPhone is in warranty, return it to Apple for an exchange. If the iPhone is not in warranty, return it to Apple for an out-of-warranty (ie. bring your wallet) exchange.

Qosmio G20 - Line of dead pixels

The other night a solid line of dead pixels appeared down the left hand side of my screen. It just appeared out of nowhere, a solid, 1-pixel wide yellow line. Is there anything that can be done for this? Can it be repaired? I believe my computer is still covered by extended warranty

Hi Ashley
Of course this issue can be repaired but the question is how ;)
In my opinion the faulty part must be replaced.
Try to connect the external monitor to the notebook to find out what part malfunctions.
If the same line will appear on the second display then the GPU (graphic chip) which is fixed on the board malfunctions and in such case the whole board must be replaced.
But dont worry about that! As you said the warranty should be valid and every part replacement should be done for free.
Therefore dont waste the time a contact the ASP in you country as soon as possible.
Good luck

When scrolling vertically there is an horizontal line which causes distorsion of the screen. I do not have noticed such concern on my iMac or on my macbook. What happen with the macpro ?

When scrolling vertically there is an horizontal line which causes distorsion of the screen. I do not have noticed such concern on my iMac or on my macbook. What happen with the macpro ?

MacPro bought in 2010
MacBook Pro
MacBookPro7,1
Intel Core 2 Duo
2,4 GHz
Nombre de processeurs :          1
Nombre total de cœurs :          2
Cache de niveau 2 :          3 Mo
Mémoire :          4 Go
Vitesse du bus :          1,07 GHz
Version de la ROM de démarrage :          MBP71.0039.B0B
Version SMC (système) :          1.62f6
Numéro de série (système) :          W804853GATP
UUID du matériel :          716CB476-983B-5C43-B363-988FB608C01C
Capteur de mouvement brusque
État :          Activé
System:
Mac OS X 10.6.7 (10J869)
Darwin 10.7.0
Video DIsplay Card
NVIDIA GeForce 320M :
Jeu de composants :          NVIDIA GeForce 320M
Type :          Processeur graphique (GPU)
Bus :          PCI
VRAM (totale) :          256 Mo
Fournisseur :          NVIDIA (0x10de)
Identifiant du périphérique :          0x08a0
Identifiant de révision :          0x00a2
Révision de la ROM :          3533
Moniteurs :
LCD couleur :
Résolution :          1280 x 800
Profondeur de pixels :          Couleurs 32 bits (ARGB8888)
Miroir :          Activé
État du miroir :          Miroir matériel
Connecté :          Oui
Intégré :          Oui
Is that what you asked ? Do you need other data ?
Note that I have also strong distorison when running slides show with iphoto.
Thanks

Dead pixel in my screen? What will apple do?

It seems that I have a dead pixel in my screen. I have a keen eye for them as I have had to replace 2 LCD tv's because of this. Even though it is'nt a huge deal I would like it fixed. Any idea on how apple will handle this? Just replace the phone I'm assuming. Anyone have this problem also? What was the outcome?

So in other words what your saying is, there is a standard for how much your screen has to "not work" for them to care? And I read the pixel anomalies article by apple and it seems like a pretty BS way of getting out of replacing a phone. I talked to my buddy who is a TV salesman and he said it is rare to have this happen with TV's and when it does they replace them. Seems like apple should do the same. Hopefully I can get the issue resolved because this is
not the only problem. When I am in the recent/contacts section my screen doesnt work or jumps around (doesnt select where I put my finger, goes random).

Dead Pixel , or uneven screen brightness test

Hello
I will get my new Imac monday.
Could you please tell me how can I check the screen for dead pixels or uneven screen brightness issues?
Thank you fpor your help
Please when you explain, take in consideration that I never used a mac before,
I am a switcher
Many thx

Normally you will see any stuck (colored) or dead (black) pixels right from the get go. Many times stuck pixels will unstick over time or by running pixel fixers.
example: http://www.jscreenfix.com/basic.php
In the unlikely event that you have any dead pixels, contact Apple, your local Apple Store or Apple Service Provider there really good about making things right.
All computer displays will exhibit some sort of unevenness and or back light leakage, but most folks don't notice or worry about it. Unevenness can be seen using a solid light gray or light blue back ground and backlight leakage can be checked using a black screen.
+Just slap up your favorite photo's or wallpapers on the desktop and move on.+
Dennis

HT4436 I have now downloaded all of my CD's to my itunes library and have since only purchased new music using itunes Store. This itunes library is stored on an old Dell Desktop that I am getting ready to replace with an iMac; how can I move the music? 8

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Is the music I downloaded from my CD's already in the iCloud or only the music I purchased on itunes?

This might help: http://www.macworld.com/article/1146958/move_itunes_windows_mac.html.

My daughter disconnected her iPod nano from the lead before ejecting the device. It no longer syncs and we have re-set the device, but it now only occasionally appears on the computer screen any suggestions please?

My daughter disconnected her iPod nano from the lead before ejecting the device. It no longer syncs and we have re-set the device, but it now only occasionally appears on the computer screen any suggestions please?

Restoring the iPod will do nothing to his iPhone.
When you restore it wipes the iPod clean no matter what computer you use.
The only plus to doing it form your home computer is if you have a backup stored there, then you can restore from the backup once it's done wiping.
If you are away form your home computer, go ahead and use the computer you have to restore it, then when you get home, you can restore form any backup you may find. You can use this to help you do that when you get there: http://support.apple.com/kb/ht1766

I have colorful lines going through my iphone 4s screen. What can I do to get ri d of them?

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The Basic Troubleshooting Steps are:
Restart... Reset... Restore from Backup... Restore as New...
Restart / Reset > http://support.apple.com/kb/ht1430
Restoring > http://support.apple.com/kb/HT1414
If you try all these steps and you still have issues... Then a Visit to an Apple Store or AASP (Authorized Apple Service Provider) is the Next Step...
Be sure to make an appointment first...

I lost my receipt (bought a beats earphone at Apple store in Miami. Now I need to use the warranty. I have the earphone in the box, almost new! Help me please!!!

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If you paid with debit or credit card, contact your financial institution for
a copy of the transaction.
If you used your AppleID when making the purchase, it may be in your
purchase history in the AppleStore app.

Hi, How I can duplicate website? I have not any possibility to do it on the right button of mouse. I used to have it, but now I can not find it. can you help me please. Kind regards kate ( email: ukaska@interia.pl)

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Help! (please :) I have a 1GB iPod that's loaded with music for which my computer can no longer find the original files-due to external mass storage crash during recent move. Is there a way to import iPod music back into my iTunes library on computer???

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http://support.apple.com/kb/ht1848
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[email protected]

Someone in another section answered this. Thanks.

I have now 25 lines of dead pixels on my screen! help me please! i have an 17" iMac4,1

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