Display problems imac

how many people have problems with imac 2011 display?

What kind of problem are you referring to? Is it with a 21.5" or 27" or external display? Is it with a specific Application or at all times? Are you doing a survey?

Similar Messages

  • This one's a doozy. Website display problem iMac specific.

    Alright, so I've been having this problem since day one and I've sucked it up for the past 2.5 years and I've been throroughly annoyed by now. So here's the problem.
    Certain websites do not display properly. I do not believe that it is a browser problem because I've tried 3 different browsers (firefox, chrome, and safari) and the problem still persists. So let me post pictures first before I get in to the details:
    Comparing the 3 different browsers.
    (my concern is that the thumbnails do not display properly). The tabs are also not clickable (ie. I can't click "New Costco Coupons" from "Featured Deals").
    So I have Parallels running, and opened up firefox to display the same websites that are giving me problems...
    aeroplan thumbnails don't display. (left: windows; right: mac)
    kickstarter website "Thanks a billion" doesn't display (left: windows; right: mac)
    Kickstarter login page. (left: windows; right: mac): When I click login in windows, pop up opens for me to login. In mac, when I click login, nothing happens.
    (the biggest issue that is getting under my skin)
    And once again, redflags thumnails. (left: windows; right: mac)
    I also believe this is an issue with this particular mac model. I have 2007 macbook pro with the same firefox plugins (they sync) and the same OS 10.9.2 (recently fresh installed on both machines, though the problem persisted before the OS install), and all these sites display fine.
    This iMac model:
    27-inch, Mid 2011
    iMac 12,2
    Model: A1312
    2.7 GHz Intel i5
    I've tried restarting in safe mode with plugins disabled and have ruled out a plugin problem. I've also checked and made sure that flash and java are all updated. Any help at all would be great =)

    Please read this whole message before doing anything.
    This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
    The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
    Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you boot, and again when you log in.
    Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a Fusion Drive or a software RAID, you can’t do this. Ask for further instructions.
    Safe mode is much slower to boot and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal boot may also be somewhat slow.
    The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
    Test while in safe mode. Same problem?
    After testing, reboot as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

  • Windows 7 64 bit on iMac display problems and instability

    I received my iMac 27" quad core with 8 gig ram & 2 x 1 TB hard drives last Friday. I'm using Boot Camp to run windows 7 64 bit on maximum 2560 x 1440 screen resolution.
    I get intermittent but often display problems in windows 7. I get areas of the screen covered in little yellow dots or blue squares (never red artefacts.) This will happen at random areas of the screen, inside an open window, around borders of windows and so on. Most often the screen will go black and come back with a message in the bottom right corner of the screen saying 'Display driver has stopped responding and has recovered' with the sub message saying 'display driver ATI radeon family stopped....etc'. Sometimes I lose the screen wallpaper. Once I've had the system just shut down, once I've had Photoshop seize up and I had to do a cold reboot. Could this be an overheating problem or resolution too high problem or driver problem? Windows 7 tells me my drivers are up to date. I tried installing the drivers for the card from ATI's website which made no difference
    The reason I bought a Mac is because it's the only effective way to code for the Mac family of OS's in XCode. The reason I didn't just attach a miniMac to my PC monitor was because there's rather a lot of advertising by Apple about the fact that you can use a Mac with a PC OS via Apple's own Boot Camp. Now I have a lot of Windows software (some of which is not available for the Mac or requires buying again) sitting on an unstable system. Any ideas would be much appreciated...

    Sorry, that thread got moved for edit and as a user tip... which I didn't want and won't be doing....
    Here is the post:
    A tip and workaround for how to get ATI mobility/laptop drivers so that Windows no longer thinks the ATI is a desktop card:
    http://discussions.apple.com/thread.jspa?messageID=11286987
    Summary (my own edit steps):
    1. Install Boot Camp 3.0 and upgrade to 3.1
    2. Uninstall graphic drivers and run Driver Sweeper
    http://www.guru3d.com/category/driversweeper/
    instead of:
    removing the crashing driver by going into windows 7 setup via its install cd and deleting the ati driver manaully
    3. Install ATI Mobility (link)
    4. Uninstall ATI (Programs control panel?) Device Manager (rollback; uninstall?)
    5. Device Nanager: update driver and BROWSE BACK to 8.681 (the original apple driver that was causing freezes and purple artifacts) - navigate to /Apple/Drivers/ATI
    (Apple uses) a 4850 card in the iMac, its modified a bit for apple. Enough that desktop drivers don't work, and modded-for-laptop desktop drivers don't work either.
    Now the upshot of using modified drivers is that it FORCES the catalyst control panel to be installed, meaning you get a few more options to mess around with the card.
    I couldn't use the original apple drive, it locks up, the newer one had banding, the newer radeon drivers direct form ATI wouldn't work until they were modded and then they cause black screens.
    SO the solution, as obscure as it was, was to download ACTUAL mobility Radeon drivers - version 10.3 still, but made for laptops.
    http://support.amd.com/us/gpudownload/Pages/index.aspx
    THESE drivers I was able to install - and here is where things changed.
    THIS driver changed they way windows saw the video card in device manager.
    As I mentioned before, its NOT a desktop card, its a modified laptop card, but installing mac drivers makes windows THINK its a full desktop card, and running the original 8.681 driver crashed it.
    Once installed 10.3 LAPTOP driver it now appeared in device manager as a MOBILITY card.
    +These Steps "should" work:+
    delete ATI driver manually
    reinstall apple driver after that and see if that works,
    otherwise try the steps above
    (mod drivers, remove via windows recovery off setup disk, install laptop drivers, reinstall apple driver over it)

  • 2x iMac G5: Both Logic Board and Display Problems, Warrenty?

    Hello,
    Thank you for looking at this topic.
    I am Jeroen from The Netherlands and proud owner of several Mac Mini's, iMac's and Macbook's. I have 2times the iMac G5, a beautiful machine, but both not working since 2 months.
    I have two times the iMac G5 with iSight, both have logic board and display problems.
    The first iMac doenst start at all, black screen, i hear the chime, but nothing happening. After a minute i see one horizantal white stripe but nothing happens.
    The second iMac has weird horizantal stripes also, but the computer starts. It gives a finder and questionmark icon. After a while the fans go crazy.
    Both these symptons are widely known on the internet. I would like to get this fixed, but prices are crazy. And because this is a common issue I would expect to get this fixed for no costs. I have contacted several Apple resellers but they shown me high prices and bad services. On these forums I've saw people in the USA who get this fixed free of charge.
    Does anyone has any advice for me? I'll call apple USA this morning.
    Thankyou for ur time.

    Welcome to Apple Discussions.
    I know of no repair extension authorization which provides for the repair of either computer you describe beyond its original 12 month period of coverage. If either machine is covered by a warranty extension program provided by AppleCare, then the parts, labor or both required to replace the defective components may be offered at no charge to you. Final determination of eligibility is made at the part level by authorized Apple service providers or dealers and by the specific serial number of the machine submitted for service.
    Absent a warranty extension, however, it is quite likely that you will have to pay for the repairs is you elect to have them performed.

  • Hello to all: My iMac has developed a video display problem. It displays everything in cartoon like colors - purple, green, blue. Can this be repaired? Is there a way to output to a different monitor? Thanks in advance!  isplays

    Hello -
    My iMac has developed a video display problem. Everything now appears in a strange, cartoonish way. Purples, greens, blues. Can this be fixed, and if so, any idea how much it might cost? Also, could I output to a seperate monitor? I plan to replace the unit , but cannot right now. Thanks!

    Go to System Preferences > Universal Access > Seeing.
    In the Display area, reset it to "Black on white" by clicking that checkbox.
    You can also reset it by pressing Command-Option-Control-8

  • 20" iMac Intel Core 2 Duo Display problems.

    It was hard trying to sum up my problem for the thread title... so let me try and describe what I am experiencing a bit more clearly.
    I have recently acquired a 20" iMac Intel Core 2 Duo,2 GHz(aluminum body black plastic back)-with display issues...
    The problem is basically that there appears to be no happy middle ground in regards to contrast- it is either WAY too white or WAY too black... I would have to say it is more of an issue with CONTRAST than brightness, it appears that nothing I can do in calibrating the screen really matters.
    I have calibrated displays before and never had this sort of issue. It is pretty bad (for example): a royal blue appears as black or gray mac highlight color choice appears as black.... white and medium grays appear indistinguishable.
    all this in addition to the fact that there appears to be a gradient to the screen when you display a solid color neutral back ground, not too mention that it is VERY hard to look at this screen for very long and for what I do( 3D model making and texture creation) the display is pretty useless.
    I have read about similar issues with this model's screen at other sites, but most of the threads ended without being resolved and were more than a year old.
    This machine belonged to my in-laws and according to them, it always looked this way and when they took to back to the Apple store few weeks after purchasing it( brand new), they were told there was "nothing wrong with the display, it's supposed to look that way"... the machine was hardly used(just for iChating with our infant daughters), so I don't really think it is an issue with age or anything.
    Now here is the really weird part:
    I just upgraded the OS from 10.4 to 10.5 and when the machine first displayed the default 10.5 background(the Nebula one... blueish-pink with stars)... as it was going though the start up IT LOOKED RIGHT.
    Once everything was done and all my icons appeared- Boom! Back to ugly.
    I have noticed the same thing occur if I shut down the machine.
    Startup screen, the default (nebula)background(my choice of background) comes up... it looks fine, the icons start to show up... everything still looks good and then when everything is done... BAM! UGLY!
    I'm not sure what to make of this... any suggestions
    One last thing- I am VERY familiar with the default background for OS 10.5, I have used it on my iMac G5 for over 2 years. When I say the displayed "looked right" I mean, it looked like what I was used to and how it appears on other machines.
    Thank you in advance for any help or suggestions.

    mcgyver,
    If start up and shut down look correct then something is set or corrupt in the user options. To test this, add a new user and signon as them.
    Regards
    Edit: I don't use 10.5.8 anymore so the following suggestions are for 10.6.5.
    The things that may affect your display are:
    System Preferences > Universal Access > Seeing Tab. Display: Make sure Enhance contrast slider is set to normal. Use grayscale is unchecked.
    System Preferences > Displays > Color tab > Display profile set to display or iMac. Whatever the default is on your system.
    Message was edited by: captfred

  • Bootcamp display problems - aluminium iMac

    Hi
    I have an aluminium iMac and I have recently installed windows on it. Everything went fine but there seems to be a problem with the display driver?
    What happens is that when I'm doing something, the computer seems to freeze (music lags) then the display goes black and the computer runs as normal (the music starts playing normally again.)
    I thought it was only when I was playing Counter Strike Source but it happens when I'm not too. Is anyone else experiencing this? Any fixes/ suggestions?
    I've tried repairing bootcamp drivers but to no avail.
    Thanks

    I was having Display Problems on my Intel 20" iMac- weird artifacts, lines, distortion of parts of the screen, weird color patterns, etc... all seemed to happen mostly during viewing video on the computer.
    I worried that it was the card itself, and after about 4-5 years of use, was simply going bad-- and some articles and posts I found online seemed to confirm that this was possible--
    I kept reading and eventually found posts about using smcFanControl to raise the fan rpm manually to try to keep things cooler in there... It seemed to work somewhat but not really, and the artifacts would continue and the computer itself was hot. The temp was usually constantly around 145F with lots of artifacts and distortion. When it wasn't running video or being used a lot, it would cool down and the artifacts would wane.
    I found a step by step guide on ifixit.com to opening the iMac body to replace various components, etc. so I got the bright idea of opening it and blowing it out with compressed air.
    It wasn't that hard to open and the guide was easy to follow, I went as far as removing the screen, which exposed one side of the guts and the fans. I blew it all out, it was dusty in there, and a lot of dust came out.
    I put it all back and am running a netflix movie- temp is staying at about 125 +- and there are no artifacts...!!
    I think I might have actually fixed it-- If you have a mac that is running hot and has weird screen artifacts, behavior, etc... I suggest dusting it and blowing out vents, fans, etc to allow it to run cooler....
    Oh, My computer is way out of warranty, and I don't have AppleCare, and everything is backed up, etc... open at your own risk, knowing you will probably void any warranty.

  • IMac 24" Display problem

    Hi,
    Im having display problem with my iMac 24" Early 2008.
    http://www.hockeystat.net/video.jpg
    I cant boot, after 20 seconds the OS freeze.
    I ran a full diagnostic with the Hardware Test...no error.
    http://www.hockeystat.net/video_test.jpg
    Any idea ?
    Thank you
    Luc

    1 - connect an external display; if the external display works ok then there may be a problem with your iMac's display panel or perhaps the inverter board. If the external display does not work then the problem may be with the graphics chip on the logic board.
    2 - try booting from the OS X installation DVD? Will it boot that way?
    3 - did you recently upgrade to Snow Leopard? If so, did this problem start immediately after upgrading? If you upgraded, did you do an erase & install; or an archive & install?
    4 - do you have AppleCare coverage?

  • Imac display problem, the resolution seems to be unusual, top bar and all folders on the desktop background is off the screen

    Need help with 21" imac display problem. The resolution seems to be unsual, everything on the desktop background goes off the screen. The resolution is set at 1920 x 1080

    Quit the game and restart the iPad.
    To quit the game - Go to the home screen first by tapping the home button. Quit/close open apps by double tapping the home button and the task bar will appear with all of you recent/open apps displayed at the bottom. Tap and hold down on any app icon until it begins to wiggle. Tap the minus sign in the upper left corner to close the apps. Restart the iPad. Restart the iPad by holding down on the sleep button until the red slider appears and then slide to shut off. To power up hold the sleep button until the Apple logo appears and let go of the button.
    If that doesn't work try this.
    Reset the iPad by holding down on the sleep and home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons.

  • I called Apple about the 20" iMac display problem today...

    I have the same display problem that I've been reading about here, it's much much brighter on the bottom of my screen than on the top and viewing the screen from an angle makes the screen look very dusty and dirty.
    First I talked to technical support and because I live 75 miles from an Apple store, he said a technician would come and look at it tomorrow even though I said it was a problem that is very common and just not on my computer. It will be interesting to see what the technician says.
    Then I called customer relations to put in a formal complaint against the 20" iMac screens. I told the man that even on the Apple support forums here that everyone was complaining about it. He said everyone where he worked was using 20" iMacs and as he looked at the screens next to him, he noticed that the colors were all off, looking dirty brown like mine. He said that's just how the new 20" screens were. I tried my best to tell him that it just wasn't right that the screens were so flawed and, although he kind enough and understanding, he didn't see any big problem with them.
    He did submit my formal complaint at the end but I have to tell you all, it sure looks like Apple does not see any problem with these screens. He suggested that I write to Apple at their corporate office to let them know of these problems. Here is that address:
    Apple
    1 Infinite Loop
    Cupertino, CA 95014
    So that's my next step, writing to the corporate office.
    I'll update this post after the technician comes tomorrow. I really don't expect this to be fixed but I shall let everyone know.
    Martha

    I have been watching this forum for months and have come to a conclusion that Apple
    has taken the "easy road" by using cheaper components as evidenced by these discussions pertaining to cheap lcd computer screens. Also, with the Imac there is limited upgrade paths and the fact now
    the imac has become more of a glorified computer with the internals of a laptop which suggests it is almost mandatory to pay extra for apple care for 3 year warranty because of uncertainty for longevity in my opinion. I am still using an apple 2002 quicksilver G-4 computer almost 6 years old that has not given me and problem. I have also been able to upgrade the hard drive, dvd rom drive myself-you cannot readily do with the current imacs. I was thinking about replacing my G-4 with an Imac, but have now come to the conclusion that Apple is losing focus with providing quality products and unless something drastic happens which I doubt, Apple will lose me as a future customer. I may be forced to go to the other side and buy a PC.

  • IMac/Mavericks: playing a project with LE 8. Display Problem.

    iMac/Mavericks: playing a project with LE 8. Display Problem shows all black to the left of the play head. Any fix for this?

    See these threads:
    https://discussions.apple.com/message/23504373#23504373
    https://discussions.apple.com/thread/5466487?start=30&tstart=0

  • My original post, locked by this forum. Display problem related

    Hi G5 Gurus,
    The display problem first, we all know when screen savers display, a click on the mouse will bring you back to the active desktop, this was how it worked., but now, sometimes a click cause the G5 to sleep!
    As for the sleep, I dare not to put it to sleep these days, because I am afriad it may cause a fire by over heating. Sometmes, actually four times in the past few months, my G5 could wake up by itself, followed by a extrem high speed running of the cooling fan, it sounded like a hair dryer running in the same room. Sometimes the sreen could light up, just like real wake up, sometimes, it was black. No clicks the mouse or keyboeard could bring it back to normal, I had to press and hold the power button to turn it off.
    This crazy problem happened for the first time last summer, a dead hard disk was the cost. Apple replaced it, but failed to detect the cooling or power or display problem. I was given one month extended free service, but right after its end, the problem was back and happened even more often.
    Please let me know if any of you had the same problem and please advise what to do.
    100s Gs of thanks.
    Songyan
    iMac G5 Mac OS X (10.4.8)
    la teller
    Posts: 1
    From: Los Angeles
    Registered: Jan 10, 2007
    Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
    Posted: Jan 10, 2007 2:21 PM in response to: Bad luck G5
    I have the EXACT same problem. In fact, I could not have described it better myself. What gives? I brought it in to the "genius" bar and they repolaced the power supply free of charge but the problem is still there. I noticed they ordered a new logic board but did not end up replacing it after all. Did you have yours replaced and did it work? Is this a known issue?
    imac G5 17 inch Mac OS X (10.3.9)
    Bad luck G5
    Posts: 8
    From: UK
    Registered: Jan 10, 2007
    Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
    Posted: Jan 11, 2007 1:20 PM in response to: la teller
    Hi La teller,
    Thank you for your reply. The 'genius' here in London only replace the dead hard disk, which I belive was a victim of this problem. I was told they couldn't find anything wrong with the power supply or the cooling system.
    Now at lest I know I am not the only bad luck guy. Let's wait and see if others are having the same problem. I am not sure if this is a known issue to Apple, even if it is, it may take years before they can offer a recall or free repaire. I noticed that some G5s have already been suffering from power problems and a free repaire was offered.
    Thank you again and hope Apple can take our concerns into their consideration soon.
    Songyan
    iMac G5 Mac OS X (10.4.8)
    stopha6
    Posts: 1
    From: US
    Registered: Jan 12, 2007
    Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
    Posted: Jan 12, 2007 7:43 AM in response to: Bad luck G5
    Hello,
    I'm also having this problem (fan running, won't come out of sleep), just spoke with an apple care rep. He confirmed my suspition that it was software, not hardware as I have just had the logic board and power supply replaced.
    His suggestions were to:
    1. Run disk repair from the startup CD
    try running OS X from a firewire drive and see if the same behavior happens or
    perform and archive and install.
    When the fan starts to run like that it means the OS is not communicating with the hardware properly. The OS could be somewhat corrupt if you were having hardware issues beforehand, hence the need for a reinstall. I will be performing an archive and install after the disk repair, I'll let you know if it fixes the problem!
    iMac G5 Mac OS X (10.4.8)
    Bad luck G5
    Posts: 8
    From: UK
    Registered: Jan 10, 2007
    Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
    Posted: Jan 14, 2007 12:52 PM in response to: stopha6
    Hi Stopha6,
    Thank you for your message. I never imagined it could be a software issue, cos it looked so hardware.
    Please keep me updated with your progress.
    By the way, as I said in my old posts, a hard disk went dead when this happened for the very first time, how do you read this?
    Thank you.
    Songyan
    iMac G5 Mac OS X (10.4.8)
    Bad luck G5
    Posts: 8
    From: UK
    Registered: Jan 10, 2007
    Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
    Posted: Jan 15, 2007 6:58 AM in response to: stopha6
    Hi Stopha6,
    After reading your reply again, I realized that the system had already been reinstalled. As I said when it happened for the first time, the hard disk died with it, which was replaced, of course with a new OS X, but the same problem is still happening. May this suggest that it is not just a software problem? Thank you. Songyan
    iMac G5 Mac OS X (10.4.8)
    AG-Nate
    Posts: 5
    From: Pismo Beach,CA
    Registered: Aug 26, 2006
    Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
    Posted: Jan 14, 2007 3:38 PM in response to: Bad luck G5
    The Fans going at full is only because you have an application that is using a lot of cpu power and therefore causing the imac to heat up so it turns the fans on. The screen-saver and sleep problem you describe sounds like something that may just happen on accident. But this sounds mostly like a software problem. Try making sure to always quit all non-apple products and see if anything changes.
    eMac, iMacG5 Mac OS X (10.4.7) 800mhz 1gig ram, 2ghz 2gigs of ram
    Bad luck G5
    Posts: 8
    From: UK
    Registered: Jan 10, 2007
    Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
    Posted: Jan 15, 2007 6:50 AM in response to: AG-Nate
    Thank you, Ag-Nate. I will try as you adivised but I con't think the fans were activeted my intensive CPU using. In most of the cases, the problems happened when the Mac was sleeping, when the minimum CPU were being used.
    iMac G5 Mac OS X (10.4.8)
    Timothy Klein
    Posts: 15
    From: Denver, CO, USA
    Registered: Dec 6, 2004
    Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
    Posted: Jan 31, 2007 1:02 PM in response to: AG-Nate
    "The Fans going at full is only because you have an application that is using a lot of cpu power and therefore causing the imac to heat up so it turns the fans on."
    That's only partly right. A hard-working process will make the fans run at high speed, of course.
    But, the OS is in touch with the firmware of the iMac, telling it how to run the fans, based upon information the OS X kernel is getting about the state of the hardware.
    If the firmware loses touch with the OS for some reason, and is not getting instructions on how to run the fan, it will default to running them at full blast, to be on the safe side (and this "full blast" fan mode is way louder than anything you'll generally experience during normal usage, I know from experience).
    So it may not be so simple as a hard-working cpu process kicking the fans on.
    iMac G5 17" 1.6 GHz Rev. A Mac OS X (10.4.8) 1 GB Ram
    Kensall
    Posts: 2
    From: London, England
    Registered: Feb 2, 2007
    Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
    Posted: Feb 2, 2007 9:05 AM in response to: Timothy Klein
    Hi I have a 20" G5 imac it's about 18 months old and I am having the same problem, It freezes and the fan runs really loud. It's nothing to do with software as my I.T. guy has done a complete re-install. All of our admin people have imacs of differring ages and the flat panels are all OK but every one of the G5s has had a booting problem. Some fell into the recall for replacement logic boards but the one I have at home is the newest and doesn't. I'm waiting for my apple reseller to get back to me, but it looks like it's the logic board and as none of the serial numbers fall into the recall, I'm expecting a big bill. I'm really disappointed as I've been a professional apple user for over 15 years and have grown to expect a certain amount of honesty and integrity from them. Looking at all of the discussion boards and the amount of people complaining of the same problem the logic boards are defective and apple should be replacing these free of charge.
    i mac G5 Mac OS X (10.4.8)
    a brody
    Posts: 15,170
    From: Silver Spring, Maryland. Don't forget to backup your data!
    Registered: Dec 23, 2000
    Re: What's the problem? Display? Power supply? Cooling? My G5's gone mad
    Posted: Feb 2, 2007 10:27 AM in response to: Kensall
    Kensall,
    Welcome to Apple Discussions!
    As in the other thread I wrote:
    Being from England, you may find the repair program under these pages:
    http://www.apple.com/uk/support/imac/repairextensionprogram/
    http://www.apple.com/uk/support/imac/powersupply/repairextension/
    Check both of them as they refer to different models.
    If neither of yours is under the program, please start a new topic thread so someone can help you.
    http://discussions.apple.com/forum.jspa?forumID=881
    First off, you'll get a wider audience who may be able to solve your problem. Secondly, responses to you won't confuse the original poster with solutions that don't apply to them. And thirdly, you'll know for certain whether or not a response applies to you.
    iMac C2D 2.17/20 inch/iMac G5 1.8 1st gen/iMac G4 800 Mac OS 9 Mac OS X (10.4.8) EyeTV 200, Canon PS A530 , Epson P-R220, iSight, Airport Extreme, 5th Gen iPod

    I am having a very similar problem. My G5 imac has already had the logic board replaced from the leaking capacitor problem. 8 mos. later the power supply was replaced under the second recall program when it failed to start up.
    It had been working now for almost a year, when about 3 mos. ago I started to experience the sudden dimming effect - if the display was untouched the screen would dim about 30% similar to a laptop in energy save mode. I checked and none of these types of options were set in the pref panes. At the same time I would have the iMac go to sleep after a while from non-use, and then when I tried to wake it it would stir for a few seconds and then go right back to sleep. It took 2-3 attempts to wake it up.
    Then last week, as I tried to wake it, it just shut down instead completely. I had to hold the power button down to recycle it to get it to come back to life (3 times).
    Today was it - I found what I thought was a sleeping iMac, but it will not power up at all. I opened the back cover and the power supply is working, but I cannot get the board to energize, I reset the PMU, but the #2 LED won't even blink. It is completely dead.
    Basically every time I used this computer I held my breath that it would not work. After 2 recalls I still only get 9 mos. out of it? Apple is really starting to show it is like the "big" computer makers, the quality is going right down the tubes.
    iMac G5   Mac OS X (10.4.4)  

  • Display problem after apple repair

    Hello everyone,
    Few weeks ago had this problem with vertical lines on my iMac display, which apple told me it was a display problem and they needed to changed it. So far so good... despite the 300pounds i had to pay for a new screen but anyway....... now look what happened...
    i was wondering if anyone has seen this problem before (i wish i could browse on internet about this problem, the thing is: with my screen like this i cant distinguish what is or isn't a good image when i watch videos/pic posted from other users regarding displays problems)... do you think is any graphic problem? or display again?
    i'm so upset
    Thanks

    Thanks for your reply.
    I've just done it and the screenshot looks fine on my iphone. So... LCD problem again...? great
    can you see any problem on this screenshot?
    Thank you for you help.

  • Display problem, and maybe worse

    On startup this morning my iMac (PowerPC) G5 display began behaving very strangely. The screen is displaying my usual desktop picture, dock and icons, and finder window. Applications are running, but very oddly.
    The screen is covered in small visible dots, some flashing, some static. When I open a document, or a page in Safari, it displays more or less normally (I can use Word, for example), by then "smears" if I start to scroll down the page. At other times the graphics break up completely.
    I'm guessing this is a display problem, but one other odd symptom is that sometimes if I click on a file in the Finder window, instead of opening the document the window shuts down and re-opens in its starting configuration.
    I tried a restart, but it stuck on a black screen, and I had to force it to stop via holding the start button, and start again from there. I tried accessing system profiler, and it all froze up, requiring another button stop / start.
    It looks like a hardware issue, but I've no idea what kind. Anybody recognise what is happening? (I'm posting this from my iBook).
    Kenny

    Since the update 10.9.4:
    My soundcard is missing and on Safari 7.0.5 video artefacts and flickering.
    On macbook Pro 13 Early  2011

  • Display Problem - Light Coming From Top

    Hello,
    So I recently purchased a 27" iMac, and have noticed a display problem when viewing in full screen mode. Its only an issue if there is black along the top of the screen (such as the black bars when watching a movie or trailer). When there is black along the top, you can see some white light kind of bleeding in from the top edge - kind of all the way along (very narrow), but more pronounced at certain spots. I browsed the forums, but couldn't find anything that seemed real similar (though there are a number of reports of a yellow tinge on the bottom).
    I guess I"m just wondering if this is a common LED problem - or if my display may be defective, and I should take it back.
    Thanks in advance.

    Hi Pullo
    There has been a few reports, but nothing wide spread.
    http://discussions.apple.com/thread.jspa?messageID=3005885&#3005885
    http://discussions.apple.com/thread.jspa?messageID=7722386&#7722386
    If it's noticeable, then most definitely take it back.
    Dennis

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