IMac :: Screen Locked Up - Flickering And Distorted
Jan 3, 2010
I was using safari and my screen locked up. Large areas got distorted and little (maybe 1/8" blocks) started flickering all over the screen. It wouldn't recognize any input from my keyboard or mouse. This really scares me for a number of reasons: I wasn't doing anything very difficult to cause the crash, The computer has basically nothing on it, and the reason I bought a mac was for its stability. I head back to school tomorrow (read: I head far away from a mac store), and I need to know if I should go by the mac store before I leave. It's a 27" i5 if that makes any difference.
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Nov 9, 2009
Did the updated 10.6.2 SL that came out today fix the screen flickering issue for anyone?any other problems fixed, you can post here :-)
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Nov 16, 2009
Supposedly this was fixed with 10.6.2
Anyone else still experiencing this?
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Nov 23, 2009
im guessing this is a heat issue. My screen was flickering and cutting out. This is the first time it has happened. I was only surfing the internet and using itunes. I will post videos of what happened soon.
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Nov 28, 2009
27th november 2009 -- FINALY !! My iMac 27" arrived.I rush to make it run and to update everything, and to get Vista 64 Ultimate running.FInally installing my games again ( WoW and AION ) and 3 hours later set to play.1 hour -- Man everything is so nice....2nd hour -- My mac start to go crazy -- Flickering of the screen
2H15 later -- My Screen turns black for 1 second and comes back...So is this a heating problem ? Flackering after i played some hours ?Can i do something ?s the first 27" serie not working properly ?
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Feb 18, 2010
Sometime this morning the screen on my mac became very distorted (almost pixelated.) I restarted while holding the shift key and it was resolved for about five minutes, then started up again. A friend suggested it could be a blown video card? I've attached a photo.
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Jun 15, 2009
Has anyone noticed a very slight flicker on their new MBPs? I have a new 13" and, every so often, the screen brightness dims and then brightens very quickly (happens in less than a second).The option for auto-adjusting the screen brightness is off so it's not that particular function.It's most noticeable on all-white backgrounds both on AC and battery power. Hard drive access doesn't seem to coincide with the dimming.
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Dec 5, 2007
Thing is I got hold of a 1ghz 17" iMac almost for free, it had a dead logicboard (I checked it with a voltage-meter), but I figured I could fix it and have a small hobby project-thingie going on. Well I just got a new logic board today, for a 1ghz 17" iMac g4.
Things is I only get a bright grey screen from my Mac when I boot. I've tried connecting it to a external display and that works fine. Everything is there.
I then reinstalled Tiger on it, with the computer connected to my external screen. And I still have the same problem. (I have now disconnected the ext. screen and is controlling the iMac from my MBP). So at least it isn't the installation.
So what is the problem? I can via an Apple Keyboard control the brightness on the blank screen, which would indicate that it does react to input of some degree.
I've read that if the inverter is dead or anything else is dead, you would get a rolling grey screen, flicker or something like that and not a steady bright grey. One thing I'm thinking is. What if somehow this logic board was for a 15" 1ghz imac g4? Can I check this?
I read that long thread about guys buying hi-res displays for their MBPs, and they had to replace some display profile? Could I maybe fix it with a different display profile-file?
I'm really confused by all this, and would appreciate any help I can get.
Model: PowerMac6,1
CPU-Type: PowerPC G4 (3.3)
and
the gfx chip is a GeforceMX4 with 32mb.
The display is a mode 9c27, manufacturer 610, serialnumber 00000, manufacture date: B84D7200.
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Nov 5, 2010
I've had the new macbook air just two days now. Turned it on this morning, used it for like 5 minutes and the screen just started flickering, and the whole machine just froze on me! Had to do a system reset, but I'm a little concerned after spending over a grand on this macbook! Has anyone else experienced this? I'm actually thinking about returning the machine..
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Dec 11, 2007
After the 10.5.1 software I'm having a problem with distorted (stripes etc.) icons and menu dropdowns. Apparently not on my desktop or programs like Safari, Mail etc., only on icons and menu dropdowns, which I find odd. Sometimes it's gone, but after some time it reappears again. Anyway, sometimes my Mac (iMac G5, PowerMac12,1, 1.9 GHz) is going bonkers completely, which results in a first pink, then black screen. A hard shut down is then the only option. However, I guess it's videocard related (ATI Radeon X600 Pro). I did all the tests, fixes you can think of, but without any results. I contacted Apple support, but because this is an iMac, you can't just replace the card, they told me that the whole motherboard should be replaced, which will cost me approx. 700 EURO. Of course I am not willing to do that, which means that I'll have to buy a new Mac. Of course a new Mac is always a delight, but I find replacement after just 2 years unacceptable.
Information:
iMac G5 PowerMac12,1
Mac OS X (10.5.1)
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Jun 1, 2008
So I have noticed a few times already, that the screen on my white macbook flickers to change the brightness level. It can do this while the computer is plugged in and charging, or if it's off the charger. It is definitely noticeable as it causes me to just watch what the screen is doing.
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Jan 28, 2010
My screen just started to occasionally have a flicker of a white line show up...It doesn't happen that often, should i worry? Is it worth taking it into apple? (Under warranty still) Since its not consistent i wont necessarily be able to show them what its doing..
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Jun 5, 2012
I purchased a late 2006 intel core duo iMac 20'' with an upgrade to os Lion. I've been using it for less than 24 hours, and it has managed to freeze up on me twice, with a followed appearance of pixel abnormalities, horizontal lines, etc. I did my research and it seems to be a graphics card problem, which is a Raedon ati x1600 ,256 mb.
Info:
iMac, Mac OS X (10.7.3), Late '06 iMac/2.16ghzICD/2gb
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Feb 4, 2012
screen goes bananas colors flash, weird lines appear, entire screen looks like some high-tech explosion.it is possible to make out some distorted images, but basically it is unreadable. Is my Mac dead or is there an easy fix?
Info:
iMac, Mac OS X (10.4.11)
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Oct 19, 2009
my macbook pro has been freezing and crashing lately. the screen ends up looking like this: [URL]
i have checked/repaired disk permissions.
not sure what could be causing this problem.
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Dec 7, 2008
First I wasn't quite sure about the issue, but sometimes I thought my MBA display was flickering. Then I found this thread
[URL]
Does your screen flicker too, when you watch this pattern ?
[URL]
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Apr 7, 2009
My white Macbook, the one i'm currently typing on; the screen keeps flickering. 've uploaded a video taken from my cell phone of the screen flickering. I love my white macbook but the screen keeps flickering until I keep adjusting the angle of the screen. Some days the screen flickering is minimal and I'll adjust the screen easily with minimal screen flickering. Other days i'll be adjusting for a few minutes until I can get it at an angle where the screen doesn't flicker.Here is the link of the screen flickering: [URL]I've noticed there is less/to no flickering at all the closer I adjust the screen downward, i.e., the closer it is towards the macbook itself being closed.
As for the Macbook itself, it was purchased in December 2006 and have had AppleCare since. In June of 2007 I took it in to Apple since I noticed the screen flickering very minimally only when the screensaver came on. I was then told a small soda spill was on the logic board and AppleCare would not cover it, though I was still covered regarding all cosmetic repairs, aside from that soda spill. It hasn't been till the past 2 months the screen flickers heavily and I'm just sitting at my desk adjusting the screen until there is no flickering so I can get my work started. I was considering selling my Macbook for anyone that wouldn't mind the screen flickering but i've upgraded this Macbook with a 500 GB hard drive and before attempting to sell it i'd rather fix the problem myself.
Everyone, I'm all ears. I'd love to fix this problem. If it means completely voiding my AppleCare warranty and opening up my Macbook, so be it. the warranty expires in 6 months anyway.
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Apr 5, 2010
I did a quick search of the forums, and so I know there are previous threads about this. But my screen is flickering a lot lately and so I plan on either sending it to Apple, Driving 3 hours to Dallas since it's the closest Apple store, or taking it to an authorized repair place here in town. I just have a few questions for anyone that has either had this problem before or maybe just has dealt with repair issues before.1. Should I wipe my Hdd?2. Which of the three options would be the better bet?3. Anyone know if they would just fix it or if they would replace it?
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Sep 12, 2010
Apologies if this has been posted before, but rather than trawling through the thousands of threads, and before hitting the Genius Bar.... thought I would run this by the experienced MBP owners first.Got my first MBP (crossed over from PC back in April), and within the last couple of weeks, noticed that the screen is flickering intermittently.
Wondered if it's a glitch stemming from the switch from Graphics card as/when needed, or if it's an indication of something more serious and warrants taking it in to the Genius Bar... (don't want to part with it for days unnecessarily).
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Nov 13, 2010
I went on a website only to noticed the black lines & columns on the page, especially at the bottom, gives off a noticeable flicker on my 13'' MBA.
Obviously with the issues of MBA screens, I'd like to check with you if the same thing occurs on yours? I'm finding it very worrisome that my screen could be faulty.
Click here: http://news.bbc.co.uk/sport1/hi/moto...ne/default.stm
Leave it for a 10 secs and the black lines flicker quite noticeably on mine ( I have click to flash installed & you tube 5 extensions.
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Dec 8, 2010
I have a Macbook Air that is about 2 years old. Recently, the backlight started to go off randomly, it always lasts for less than a second and then is back to normal.
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Jun 7, 2006
OK so i just noticed TODAY that my powerbook's screen is flickering. i didnt really notice it until i changed the background to a neutral grey and now i see a horizontal flicker. does it always do that? or is something going bad?i still have a year left on my apple care ( fortunately ) so if its dying ill certainly take it in to them.
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Mar 15, 2007
...as the color green becomes dominant. The background on the browser is a faded greenish color, and the desktop image is degraded. Got some dandy streaks too! Searches say maybe logic board, but the guy I bought it from said it had a new logic board installed. Cables was a thought, but rotating iBook does not effect changes. I've shut it down for the moment, but am anxious to pinpoint the problem?
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Jan 2, 2009
I have a problem with my 4 year old iBook G4 screen, which flickers or blacks out depending on how far open the lid is. The problem has worsened over 6 weeks. What is the diagnosis?
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Jun 24, 2009
I have problem with flickering screen when i am using archicad 12. During drawing mode. Besides archicad none other software have this kinda of problem. PLease advise whether its the graphic card firmware ?
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Jul 1, 2010
My screen is flickering when I game on bootcamp. I installed Win7 through parallels, but it's flickering so much that I can't play it.
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Feb 11, 2012
My iMac is one of the late 2009 models (bought Jan2010). My screen has started to flicker over the past couple of days. I have the correct screen firmware.
Info:
iMac, Mac OS X (10.6.8)
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Apr 11, 2012
My screen is continuously flickering ranging from quick lines flashing across various parts of the screen to the entire screen going black for a fraction of a second. This is now happening with more and more frequency. However, I do have a second monitor connected and the flickering is not happening on this screen (A Dell Screen). Is there a certain fix or should I contact Apple Care?
Info:
iMac, Mac OS X (10.6.8)
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Apr 25, 2012
why is the screen flickering and then going black
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Jun 24, 2012
I've just switched my imac 27 inch on this evening and it is continuely flickering really bad.
The machine isn't even a year old yet, so not really happy about it.
I have the apple care protection plan, so suppose if there is something wrong with it hardware wise, then this can be fixed.
Info:
iMac
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