IMac 27¨ screen gets darker

Hello,
I have an iMac 27 bought in 2011. My screen flickers sometime and I know that it's known issue but also my screen is like dusty from some points. I added a photo of right side of the screen. What can I do with that?
http://img404.imageshack.us/img404/8830/qqka.jpg

Too bad, well run I'd recommend running Apple Hardware Test in Extended Mode at least 2-3 times in succession. If errors appear then you have confirmed a hardware fault and the machine needs to be taken in for repair.
Out of curiosity why did you buy it in the US and what country do you live in? I have seen (as recently as yesterday) a user buy a machine in the US to try and save money, then take it to another country (Brazil) where Apple does not have an Apple Store. That user now has a repair issue and must deal with a reseller he did not buy the machine from.IMHO not a good way to begin a business relationship.

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There is some likelihood of a hardware failure, to include
perhaps, the logic board; some kernel panic issues on an
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Not certain if checking out such a machine at that stage is
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• What do the beeps mean on startup?
http://www.welovemacs.com/whdoallthbme.html
{After Oct 1999 the four-beeps signal appears to mean a
different symptom, according to the above page...} *4 beeps =*
*no good boot images in the boot ROM (and/or bad sys config block)*
• *Power On Self-Test Beep Definition* - Part 2:
http://support.apple.com/kb/HT1547
• Technical Note TN2063: Understanding and Debugging Kernel Panics
http://developer.apple.com/mac/library/technotes/tn2002/tn2063.html
• Resolving Kernel Panics:
http://www.thexlab.com/faqs/kernelpanics.html
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A skilled and willing computer shop tech could probably
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Ibook g3 screen getting darker

Hi, my ibook g3 screen is getting darker and darker. Yesterday I was able to see my wallpaper on the background, but today it's almost completly gone! The HD seem to work fine, I don't think it's a logicboard problem (I had to deal with that about two years ago), and it open and close as usual. Do I have do replace my screen?
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<hr>
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Screen gets darker

I cant find anything like this on the forum but perhaps I just missed something. For months now every 2 or 3 weeks the bottom right, bottom centre or the whole screen gets a bit darker. Normally if its part of the screen it get better after an hour but after a while even that does not happen. In the end resetting the PRAM or PMU is the only way to go to sort it out. I calibrate my screen every few days but always check before doing so that the screen has not gone dark again. Now I think this all started when bluetooth did a vanishing act as well. The computer tells you the hardware does not exist any more! This all started after one of the many 10.3 updates. Might not be all related to each other but thought best to mention it. Any ideas? When I say the screen goes darker I mean it goes greyer. There is no colour tints.

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JMVD,
Seems to me that you're quite the Apple expert. I had this problem with my eMac. Since, I am not American or English I hope I can make the problem chrystal clear.
I think I had the same problem with my screen. A few days ago I left my eMac running while not using it. After a while the screen became dark due to the "sleep modus setting" of course. This is not the first time this happens. Only this time after activating the eMac again my screen was so much darker. So of course I changed the screen setting (calibration) at the system preference menu. It improved the brightness of the screen but I noticed that it still was not normal. I said to myself: as long as I can work with it than it would be no problem. But then last night I forgot to shut down my eMac and again the screen got darker. This time I tried to change the setting again. Again the calibration process but I saw that I am using the maximum brightness and I got irritated by the quality of the color. And furthermore if the screen would get darker the next time I already used up the calibration / brightness possibities.
So I went looking for help at the apple site. And I found your discussion. And I just tried the command option o f advise of yours etc etc etc. After the automatic restart only the grey screen (background) with in the centre the apple logo appeared.
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I hope you can help me with this. Unfortunately, I do not have the apple care protection plan.
Thanx.

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Screen ges dark and non- responding can't get out of it frozen

Try clearing Safari's cache : Settings > Safari > Clear Cookies And Data (Clear Cache on iOS 4) and also Clear History
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(continuation of old thread with same title, since that one was closed)
Steve A. - Any update on the repair? you were going to try several components. I find with my darkening screen, i can sometimes restore full brightness by "sleep" and wakeup.
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JMVD,
Seems to me that you're quite the Apple expert. I had this problem with my eMac. Since, I am not American or English I hope I can make the problem chrystal clear.
I think I had the same problem with my screen. A few days ago I left my eMac running while not using it. After a while the screen became dark due to the "sleep modus setting" of course. This is not the first time this happens. Only this time after activating the eMac again my screen was so much darker. So of course I changed the screen setting (calibration) at the system preference menu. It improved the brightness of the screen but I noticed that it still was not normal. I said to myself: as long as I can work with it than it would be no problem. But then last night I forgot to shut down my eMac and again the screen got darker. This time I tried to change the setting again. Again the calibration process but I saw that I am using the maximum brightness and I got irritated by the quality of the color. And furthermore if the screen would get darker the next time I already used up the calibration / brightness possibities.
So I went looking for help at the apple site. And I found your discussion. And I just tried the command option o f advise of yours etc etc etc. After the automatic restart only the grey screen (background) with in the centre the apple logo appeared.
Your advice was very simple so I just went for it. I hope I did not erased the whole unit. Please tell me what I should do know. Also I saw the screen (grey back ground / apple logo) was kind of dark. But, I never look at the screen when I start up the eMac. Maybe I am imagining this.
I hope you can help me with this. Unfortunately, I do not have the apple care protection plan.
Thanx.

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Asking if anyone else has seen this isn't likely to get you anywhere. If you find out someone else has seen it, you still haven't learned anything other than that someone else has had the same problem. If you're wondering if it's a common problem, it is not.
As to the update mentioned by that link, that sounds like a different problem. And if it won't install on your machine, that's because your MBP is not one of the affected machines. Updates like those will only install on specific hardware.
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I put my knee into it. Lots of people thought that was a miracle remedy.
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Is it still under warranty? I'd back it up and make an appointment and take it to your local apple store. It sounds to me like the screen or backlight is dying.

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JMVD,
Seems to me that you're quite the Apple expert. I had this problem with my eMac. Since, I am not American or English I hope I can make the problem chrystal clear.
I think I had the same problem with my screen. A few days ago I left my eMac running while not using it. After a while the screen became dark due to the "sleep modus setting" of course. This is not the first time this happens. Only this time after activating the eMac again my screen was so much darker. So of course I changed the screen setting (calibration) at the system preference menu. It improved the brightness of the screen but I noticed that it still was not normal. I said to myself: as long as I can work with it than it would be no problem. But then last night I forgot to shut down my eMac and again the screen got darker. This time I tried to change the setting again. Again the calibration process but I saw that I am using the maximum brightness and I got irritated by the quality of the color. And furthermore if the screen would get darker the next time I already used up the calibration / brightness possibities.
So I went looking for help at the apple site. And I found your discussion. And I just tried the command option o f advise of yours etc etc etc. After the automatic restart only the grey screen (background) with in the centre the apple logo appeared.
Your advice was very simple so I just went for it. I hope I did not erased the whole unit. Please tell me what I should do know. Also I saw the screen (grey back ground / apple logo) was kind of dark. But, I never look at the screen when I start up the eMac. Maybe I am imagining this.
I hope you can help me with this. Unfortunately, I do not have the apple care protection plan.
Thanx.

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AT

Hi Steffen
On my old Tecra notebook I have had similar issue. From time to time the display started to flicker. One day after standby mode the display was completely dark. I was able to se that there is some open window but there was no background light.
In my case the display was replaced. Now I have new display and I am very happy. Now there is much more brilliance and I can work better than before.
To honest I am not a technician but I presume very soon you can expect totally display malfunction.

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http://farm2.static.flickr.com/1031/132232444748b3e99079b.jpg
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Both. My 20" iMac at work has the same problem. It is common on the ALU 20" iMacs and yes I would say it's defective. Apple may not agree though.
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<Edited by Moderator>

Mid 2011 iMac 27" screen half dark

Hey there,
Anyone recognise this problem? iMac is only 2 months old and it appears as if the LED lighting has died on half the screen or something.
Any help or idea would be appreciated before I lug this thing down to a store.

asha_f wrote:
How much does this cost to get it fixed? Apparently my warrenty just ran out this month and even though i thought i got Apple Care when i leased my machine, i was mistaken.
Contact Apple's Express Lane, and plead your case. 27" iMac displays run over $500 USD.

IMac 27¨ screen gets darker

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