RANDOM 'DEAD' PIXELS CONSTANTLY CHANGING ... ?

I first noticed this on starting up my new iMac from the box ...... I thought I had 'hundreds' on random dead pixels .......
It disappeared, so I thought it was jusr 'the screen warming up'
Since then it happens randomly .. some times the pixels move, like when I take a screen shot of them ... I can also take a screen shot of a plain blue screen and as I draw a box to take the screen shot, the random black pixels appear, even though there was non actually there beforehand .....
Often they appear on 'wake from sleep', sometimes like this morning on booting from cold .. but ONLY on new 'white' Mail windows, not the plain blue background of the Mac ..
I guess it must be a video issue ?

Sounds like a hardware issue to me. Since it had this problem right out of the box, you should contact Apple ASAP for service or replacement. (The latter will only be an option, I would bet, if you bought it recently, not if you've been sitting on this problem for a while.)

Similar Messages

I sent my mbp 15" to the service center for a dead pixel. they changed the screen but now, I get notified that I need to restart my mbp and now, I just hear 3 beeps and it doesn' turn on.

I sent it to the service center last month to be repaired. It was running fine and it was perfect except for the dead pixel. Today, I got it back. They changed the screen. When I got home, I opened it and it was running fine until my screen darkened with a message telling me that I need to restart. And I turned it on again, and after a few times of black screen and restarting, it won't turn on and it beeps 3x when I try to turn it on. It became worse after the dead pixel repair. My question is what is the problem with my mbp? And how long would it take to get repaired because I'm a collge student who really needs a laptop.

When it beeps 3 times, it means that it's the RAM. now we have two scenarios here :
1 - The RAM is Dead and needs to be replaced
2 - The other one is that during shipping and all the RAM might have been improperly seated, you need to take it to the service stores and they would reseat the RAM for you and that will be an easy fix. but if the RAM is dead then they would replace the RAM if your MBP is still under warranty.

I have the same case with you an iPad Air in dead pixel or speckle silver dust on screen. It is been 3 months I bought in Avant Abenson in Greenbelt Makati Philippines. Today I decided to change my screen protector film but the speckle dust on the screen

Speckles dust on the screen and it cannot be removed today when I decided to change the screen protector film and noticed is not my fault it is a factory defect on screen it is either dead pixel or speckle dust on screen they are so many said and experience I have read. So I need the replacement a new one for that dismayed screen on my iPad Air. I bought this 3 months ago in Avant Abenson at Greenbelt Makati Philippines. I need the replacement for tomorrow I will go to the store I bought. I love apple products but they need to replace and make go round to improve some defects and cannot be more escalate with this issue of the many of patronizing your products. It is sometimes irritating to the eyes and seen dirt on the screen. Thank you apple customer service to bringing up my complaints and a replacement for tomorrow's to inform the store I bought and advise them here in the Philippines to facilitate in regards to this matter.

I wanted to buy an ipad air to replace my ipad 2 but the one I wanted was (luckily) sold out.
Yesterday I tested the air from a collegue and I noticed the screen was SUBSTANTIALLY less sensitive than the screen of my ipad 2 when using my stylus.
I use Stylus R US especially for I annotate and with the air this did not work well at all... Half of the time there was no contact registered so underying certain parts of the text was a disaster...
Just working with the finger all whent OK... Just fear that another app I use a lot (notes +) will have same problem.
On the Ipad 4 also retina all goes *** smooth as on my ipad 2...
Is this a fault of a specific ipad air series? Or is this normal?? If it is I think this is truelly a huge flaw and I cannot see how not manny people using the ipad for notetaking etc did not notice this...

Do I have a dead pixel on my ipod touch I can change?

I appeared a dead pixel on my ipod touch 4, still has warranty, but I wonder if this falls under warranty, to see if what I took to fix or change.
I have almost more than 3 months in.

Maybe. See:
About LCD display pixel anomalies for Apple products released in 2010 and later

Hot / dead pixel elimination in later versions of Camera RAW

Hi!
I was wondering if we could get some under the hood info on how Camera RAW handles hot / dead pixels. The standard answer 'Camera RAW eliminates these automatically' does not apply I'm afraid. I've seen more and more of these stuck pixels in my final output over the last few CR versions. Now, it could be my camera showing its age, but I'd like to know more about how Camera RAW maps stuck pixels.
I've just re-developed a set of some stage performance from last year, Canon 5D Mark II, high ISO and pushed, yes, but thats my whole niche. There's stuck pixels in all of them in the same spots. So I wondered how camera raw handles the whole mapping / processing of hot pixels. The set of images are here, and there's access to full size images also: http://www.flickr.com/photos/mvejerslev/sets/72157627732199199/ (I did clone out the stuck pixels on just a few of them though). It's a mix of processing version 2010 and 2012. Did not make a difference to the stuck pixels.
Mathias

Well, the issue with higher ISO images is: what's a hot pixel vs. what's a result of salt & pepper noise–those are different artifacts...
When you start ramping up the ISO (and use PV 2010 or 2012 without luminance noise reduction) the likelyhood of random bright (more or less) pixels (or subgroups of pixels) goes up.
The hot pixel fix is still in LR/ACR...but it becomes a battle between what's a hot pixel vs what's a result of camera noise...and ACR/LR tend to be very conservative when it comes to mapping out a hot pixel (or dead or constantly a certain color pixel).
ACR/LR can really only estimate what constitutes a hot pixel because there's no way of recording the XY position of a single pixel and telling it how to handle the mapping. It's an auto thing and as such it's subject to sometimes not working perfectly...
To really determine the issue, one (or Eric) would need an actual raw file–not something that's already been processed and resample. The more examples of ACR/LR not doing an optimal result the better the likelyhood somebody will look at doing something about it.

One Dead Pixel - Can't Take It!

Hey all,
I got a dead pixel/or just stuck pixel, and no matter what pixel tests I put it through, the pixel cannot recover. If I got to trade it in for another iPhone 3G, (bought 3 weeks ago), can they change the color for me as well? Or no?
Everyone has the **** black one, and rather have white.

Random Poster wrote:
Yeah, there going to see me coming through the door looking very angry.
You can catch more flies with honey than with vinegar.
Its not the fault of the guy/gal behind the desk that a pixel failed, or that you chose the wrong color the first time around.

IPhone 3GS Dead Pixel

Is it common to have dead pixel on iphone? Because it happen to me twice! First when i got my iphone it had 1 dead pixel, i went to change it within 7 days. When i got the new set it doesn't have it, BUT RIGHT NOW IM HAVING DEAD PIXEL AGAIN ON MY IPHONE. FROM 1 IT TURN INTO 3 RANDOM PLACES.

Not sure how common this is - not common with my original iPhone that is approaching 3 years old and not with my 3G which is approaching 2 years old this July/August.
The iPhone includes a one year warranty, and an exchange under warranty remains under the warranty for the original purchase.

Satellite 5100 - Question about dead pixels. Is it really dead pixel problem?

Hi,
I've got Satellite 5100-603. There have been some dead pixels on display. I don't know is it really dead pixel problem or not because the black area seems to be behind the screen. When i move left and right sides, the black area moves left and right sides too (as if the black area is behind the screen pixels)! And i can tell that all pixels are working OK when i look from the right and left sides of the display (because the pixels that seems to be dead, changes at different looking angles).
Are there really dead pixels or is it some other problem?
Is there anything that i can do about it?
For info, i am using my laptop for 2,5 years and there is no warranty of course...
Thanks for any help..

Hi
to answer your question I will try to make a simple description the layout of the TFT display.
I'll go from the front to the back.
In the front is a tough plexi-glass like layer to protect the screen from harm and the user from glass in case the TFT should break. It is also prepared in a way that will soften the reflections from behind (that does not go for the newer SuperBright screens).
Behind that is the 2 layers (at least 1 of glass, probably both) that hold the actual matrix of the pixels.
Behind theese 2 are a very complex set of layers that take care of the backlight. It consists of various numbers of films that should spread the light from the singel FL-tube evenly across the complete screen. Not a easy task if you ask me!
Sometimes, physical stress or dirt can make 'blotches' appear on the screen and they are in fact either dirt on the backmost layer or marks on the same. If there is dirt or marks on it, that will 'shadow' the light that comes out from it and show dark spots on the screen. They are quite different from defective pixels.
The defective pixels do not change with the angle of view for example.
I think you cannot do anything about this except changing screen. The construction is very complex and sensetive.
BR Tom

Why Apple ship macbook with dead pixel??

I have bought a macbook about two weeks ago... but i notice that one pixel was dead...
I phoned to apple costumer care and they sent to me a new macbook, but also this one have a dead pixel!!
Angry, i phoned again to the apple costumer care but this time they doesn't want to change forgotten that i was in time for a RMA request .
Now i send back this macbook again and i don't know if buy again other macbook until (i go on with RMA request ,shippement costs are paid by apple so i dont lose an euro) i dont have a screen as an Dell notebook of 450 euros give.With no one dead pixel.
Samsung sell their HD ready TV with a warranty over ALL pixels... and Apple dont care about that.
Shame!
I would like to see Steve Jobs in a keynote presenting iPhone with a little black hole in the screen... as i should do with my clients.

Most manufacturers require a certain number of dead pixels before replacing a screen. I actually believe samsung is the only company to have a 0-dead-pixel-policy.
More can be read here: http://www.notebookreview.com/default.asp?newsID=2211
Martin

24" iMac with dead pixels

I haven't seen any threads about this so I figured I'd give it a go and see how many others have dead pixels. My first 24" that I took home from the Apple store had one single, almost not noticeable, dead pixel. Most LCD manufactures will not warranty anything less than 6 dead pixels. It was near the center of the screen and after forking out $2400 I wanted a perfect LCD with no dead pixels. So I took it back the next day and luckily for me the manager at the Apple store let me exchange it. I took it out of the box in the store, booted it to check it out and didn't find any dead pixels. 3 or 4 days later I found a dead pixel. Bright blue near the bottom. You can only see it on a black screen. So I told myself that I would just deal with it until the next day I found a second dead pixel. So now I have 2 dead pixels and am pondering whether I should take it back or not..
George

Hello,
'Stuck' pixels, i.e. those that are stuck at a particular colour may sometimes be cleared by simply rapidly changing the colours behind them.
Have a look at:
http://www.apple.com/downloads/dashboard/status/pixelfix.html
cheers
mrtotes

24' Cinema Display with Dead Pixel

I just exchanged an LED Cinema Display under AppleCare for the blinking/cord problem. Got the new one set up and see that it has a dead pixel. Is there a fix for these, especially being brand new, or do I have to exchange this one too?
Running tests it is very visible on a black background, then blue, and slightly on a green background. Red and white backgrounds make it so that the pixel is not a visible problem.

When I chose my LED Display, I refused two monitors because of dead pixels (green pixels on full filled white background). All of them I tried to order in on-line shops.
When I found out that Apple use LG panels for the LED Display and I understood that I have to go to the off-line shop and choose the display by myselfl. I met 2 years ago with usual LG TFT displays on my work - they all had dead pixels. (IMHO, LG is not good).
I came to one shop and there were 2 Apple LED displays - one at the exposition and one in the storehouse. Of course I wanted new one from storehouse and let manager know beforehand about not going to buy if dead pixels. He brought up the display from storehouse, unpacked, plugged and I personally start to check. I changed the background to whole white and pointed into two green pixels. "***", - I said to the manager - couldn't believe that the display costs crazy money (in Ukraine - $1400-1500) and everyone with dead pixels!
I also have 20" NEC display with perfect IPS panel that I bought 3 years ago for $800. And I should leave the buying of the Apple LED Display and back to my favourite and proven NEC it could be the right decision as you'll see below .
But the manager offer me to check the exhibition example - he assured me that exhibition one is also absolutely new and stood only 5 days in the shop. We plug it, set the background to white and ... "O, miracle! No dead pixels! After three checked displays! Can't belive!" - and this one was really total perfect.
So I forgot about to buy new NEC instead of Apple display. Brought Apple LED Display to home, connected to my brand new MBP 13, compared to my old NEC - everythnig was perfect, colors and overall picture are better than old NEC.
I was happy ... BUT JUST FOR ONE WEEK! It started to blink/flash/blackout - this is the known problem as I found out later: http://discussions.apple.com/thread.jspa?threadID=1902288&tstart=0
I'm very disappointed because I realize that if I give it for guarantee service and they offer me to change it - I'm sure that I'll got the display with dead pixels and I don't want it! So I hope that it the software/firmware trouble and it'll be fixed in the next MacOS update. If no - it'll be the disaster because I'll not be able to return the display and give my money back from the one hand (under Ukrainian laws the money back period of goods is 14 days), and I don't want to give the guarantee replacement with dead pixels!
Sorry for large text I had to to unburden myself!

Repairing display due to dead pixels

ive had my 2nd 30in display and now seeing 4 -5 dead pixels ... due to the type of work i do the positioning of these are VERY annoying. I spoke to AC and they are willing to repair my display meaning that the casing will remain the same but i guess the guts are to be changed. What are the experiences of anyone who has had this done? Wondering if i should just push for a totally new display however i guess the down side would be getting a display that is worse. would like to hear from anyone who has had this done.

Hello
I had 6 dead pixels on my macbook pro screen. I was quite annoyed about it.
After a huge research I did find solution. At least you can try it is for free
It is a small Jawa applet which flickers and can unstuck pixels.
I had 6 dead pixels. After using this flickering applet for 10 minutes 4 of the pixels disappeared They were in the center of the screen.
The last two are placed on the top of the screen. On the top dock where the blue apple is. Fortunately there is no way I know about how to hide this dock. Therefor stuck pixels remain. (if you know how to get this flickering applet over entire screen please let me know, the videos on the website did not work for me)
Anyway check this website and good luck, Hope it helps.
http://www.jscreenfix.com/basic.php
MIKE

IPod touch with dead pixels

Hi,
I bought an iPod touch on apple store, arrived last yesterday.
It has some pixel dead.
What can I do?? Change with another or it's probably that next has also this defeact?
Any suggestion??
Thx,
fabrizioromeo

Hello and Welcome to Apple Discussions.
Unfortunately you're probably 3 hours away from the nearest Apple Retail Store and depending on how many dead pixels you have will decide whether you will be offered a replacement or not.
I would advise speaking to AppleCare on the phone (count how many dead and how many stuck pixels you have first) and seek their guidance.
0870 876 0753 (sorry about the 0870 number)
In the end under the UK Sale of Goods Act 1979 you have certain rights as a consumer however the law requires you address these with the retailer not the manufacturer. That said, experience tells us that Apple likes to help whenever possible.
cheers
mrtotes

What is the minimum number of dead pixels?

Hi. I recently purchased an Apple LED Cinema Display. It's very beautiful but i have found one dead pixel. The reseller refuses to change or fix it because they can offer assistance only for more than 4 dead pixels. I called Apple and they said me that "one pixel is accetable". In my opinion, aboslutely NO!
Does anyone had his LED display changed with only one pixel dead or stuck?
What is the minimum amount of defective pixels to ask for assistance? Some say 4, other 7...
Thanks

Apple replaced it. When I booked the appointment with my local Genius as requested a phone call prior to the appointment. During the phone call the Genius was very professional and courteous, and told me that he would be replacing it as an exception and that strictly speaking the 24" display could have up to 9 dead pixels before they would consider it a defect. Never mind this though as they did replace it without any hassle.

IPhone Liquid Submersion Sensor and Dead Pixels

Today I went down to my carrier HQ. (Singtel, Singapore).
I went to spoke to the person at the iPhone servicing counter.
He told me that my iPhone Liquid Submersion Sensor has been triggered and it's now out of warranty.
And my purpose is there, to have my iPhone exchange as my home button is getting unresponsive at times.
And he told me that this is under Apple policy. When I purchase the phone, the salesperson didn't even told me about the policy and I wasn't aware of that.
So the main point is my iPhone Liquid Submersion Sensor and I didn't even drop it into any liquid, I don't know why but it's just unfair for me as an end user.
Question here, will playing apps like Ocarina activate the iPhone LSS? Only my bottom LSS is triggered, the top one isn't.
Also to recall, at the point when I'm buying my iPhone 3G last year, out of the box there is already a dead pixel and the person refuse to change a new set for me.
I'm in need of an iPhone urgently, anybody can tell me what to do?

Ocarina could trigger the water sensor since you could spit into the dock connector while blowing into the mic.

RANDOM 'DEAD' PIXELS CONSTANTLY CHANGING ... ?

Similar Messages

Maybe you are looking for