Viewing data for Flickering display

Total: 756

3.06C2D: 265
3.33C2D: 22
2.66i5: 156
2.8i7: 313


Screen Size
21.5": 18
27": 738


Hard Drive Size
500GB": 12
1TB": 666
2TB": 78

Batch (Week Built)

09-39: 6
09-40: 3
09-41: 5
09-42: 15
09-43: 40
09-44: 22
09-45: 63
09-46: 99
09-47: 109
09-48: 82
09-49: 57
09-50: 106
09-51: 37
09-52: 31
09-53: 25
10-01: 25
10-02: 6
10-03: 3
10-04: 3
10-06: 1
10-08: 2
10-13: 1
10-14: 2
10-16: 2
10-17: 1
10-18: 1
10-19: 2
10-23: 1
10-25: 1
10-28: 3
10-33: 1
10-42: 1

Fedex: 257
UPS: 168
DHL: 99
TNT: 2
Store: 230

Australia: 36
Austria: 7
Belgium: 15
Brazil: 2
Bulgaria: 1
Canada: 46
Denmark: 10
Finland: 9
France: 28
Germany: 64
Greece: 1
Hong Kong: 3
Ireland: 4
Italy: 33
Japan: 2
Korea: 2
Luxembourg: 1
Mexico: 5
Netherlands: 25
New Zealand: 2
Norway: 15
Poland: 2
Portugal: 3
Singapore: 5
Spain: 22
Swedan: 12
Switzerland: 11
Taiwan: 4
Thailand: 1
UK: 77
USA: 308

Source Specs Comments
Infotech247 27" 3.06 Core2Duo 1TB It seems to happen to me when copying via Firewire. My screen doesn't black out, I just get a couple of 1 pixel'ish lines (multi coloured) appear across the middle of the screen for a split second. I've been using the machine for less than 5 minutes b
GSears 27" 3.06 Core2Duo 1TB Booted up for the first time, I had already begun experiencing the flicker problems. To say the least, it wasn't boding well for my new machine. As everyone else here has executed, I rebooted and the problem was fixed. Until it started flickering again.
jmavedillo 27" 3.06 Core2Duo 1TB In Apple Support I've been told to unplug the computer, press power button for 15 seconds and then plug it again. Of course, it's better to upgrade to 10.6.2 before doing this.
shahtooh 27" 3.06 Core2Duo 1TB The reason why I am asking is simple : I had the flickering/etc. issue even after the update. If "your" drivers are just the same as Apple's, then I know it will come back anytime.
Umpi 27" 3.06 Core2Duo 1TB After update it to 10.6.2, it worked better but finaly, today again the screen splited leaving the dock at the top.
Bill P. 27" 2.8 Quad i7 1TB After running a few hours I also began getting screen flickering and intermittent black screen. This would be followed by horizontal lines about 1" wide towards the lower half of the screen. I rebooted and all was fine until this morning when it returned
GLM_BUF 27" 2.8 Quad i7 1TB Used it all evening on Friday, all day Saturday and it was fine. This morning the flickering started after a half hour of use, then the screen now goes black every 30 seconds or so (4 times while writing this). Same behaviour , now bar has gone to the top... Read More
guitarguy09 27" 2.8 Quad i7 1TB However, the tech said that it may in fact be the video card and that apple engineers are "aware of the issue and are working on it". They reportedly are "leaning toward it being a hardware issue" right now but are still trying to identify the exact p
Invisidrew 27" 2.8 Quad i7 1TB I've had a new iMac 27" with Dual Core (1TB drive) for about 18 hours now. And I've been noticing the flickering/banding almost from about one hour after startup. It's not horrible, but it's persistent enough to make me very concerned. The occassion
rustyosaurus 27" 3.06 Core2Duo 1TB i am on day 3 of new 27 in imac base config and am also experiencing the same issues. i wonder if a firmware update won't fix this. i will probably just go make them exchange it instead.
BruceHA 27" 3.06 Core2Duo 1TB Having the same issue now and then on my imac 27" (Week 42)...
canyonblue 27" 2.8 Quad i7 1TB Worked fine for about 2 hours now I get the flicker (bands, at various places for under one second) and screen blackening (total blackout for about 1 second) about once every 2 or 3 minutes. A simple reboot fixed nothing and I have not yet tried the pram ... Read More
AGPcardforPM 27" 3.06 Core2Duo 1TB After several hours of continuous use with the brightness set between 6-8 bars (halfway), Intermittent screen flicker both horizontal and vertical occured with the occasional black screen for a brief second. The problem persisted and became more frequent,... Read More
freakmax 27" 3.06 Core2Duo 1TB ATI Radeon HD 4670: ROM Revision: 113-B8030F-253 EFI Driver Version: 01.00.367
maquelle 27" 3.06 Core2Duo 1TB ATI Radeon 4670 ROM Revision: 113-B8030F-253 EFI Driver Version: 01.00.367
tennisbold 27" 3.06 Core2Duo 1TB ATI Radeon HD 4670 ROM Revision: 113-B8030F-253 EFI Driver Version: 01.00.367
Schwa72 27" 2.8 Quad i7 1TB The first thing that happened was that I got a black horizontal bar flash across the screen, about 10 seconds later the screen went completely black for about a second, and finally, about a minute later, my menu bar jumped to the middle of the screen.
Schwantz 27" 2.8 Quad i7 1TB You can add one more 27" I7 to the list with the flickering and short 1 SECOND black screen. The part that really ***** is, i just got it this morning... first thing i did was update it...
bj10au 27" 3.06 Core2Duo 1TB Not only does the screen flicker intermittently and sometimes go black for a second, but on several occasions the whole screen has shifted down so the menu bar as about 1/4 of the way down from the top of the screen with the dock above it.
eXodusSquared 27" 2.8 Quad i7 1TB Everything was great until about 10 minutes in, the screen started to shift up about 1/2 a centimeter and made everything blurry as if it was ghosted/shrunk/distorted. It would do this on and off a few times then it stuck like that until I turned it off.
Simon (UK) 27" 2.8 Quad i7 1TB according to Apple, at this moment, it's not a firmware issue and they're treating it as a potential hardware problem. The directive for US and Europe is to replace any iMac that exhibits these symptoms.
Breaksandbeats 27" 2.66 Quad i5 1TB I got the new iMac 27" (dual core) about two weeks ago and have experienced the flickering screen to a lesser extent than many on here but still enough to worry.
CarpeNoctum 27" 2.66 Quad i5 1TB I got only one flickering, rebooted and never saw it again until today (12 days after purchase). I called the shop in Brussels where I bought the iMac from and they told me they know the issue, asked me to take the iMac there, they will send it to repair... Read More
gingeralbert 27" 3.06 Core2Duo 1TB Ive been having the horizontal static type bar flickering across the screen and the full screen dropping down problems. The screen drop seems to be happening in the mornings at startup when its cold.
Vagus 27" 2.66 Quad i5 1TB I had this exact problem- flicker, tearing, going black, as seen in the videos here the morning after I set my iMac up after waking it from sleep.. It went on all morning until I did a PRAM reset
jakematics 27" 2.8 Quad i7 1TB 2 days in am seeing ever so slight flickering - nearly imperceptible. So far it's a minor annoyance a few times a day.
Oyvind Moe 27" 3.06 Core2Duo 1TB Not a great first Mac experience, in other words, but I'm hopeful that it will eventually be resolved somehow, because I am absolutely in love with the thing.
Greywolf8577 27" 2.8 Quad i7 1TB I received my new 27" last night and it was doing the same thing. The horizontal bar, and the screen going black for a second.
scsDigital 27" 3.06 Core2Duo 1TB my imac just staring flickering this morning, I bought it the first day it came out so its been almost a month. Also have had the black screen and now the flickering is driving me crazy. After the 14 days does this become a warranty issue?
Anijake 27" 2.66 Quad i5 1TB Well this just started to happen to my i5. 3 times today, flicker and the screen tear. I took pictures and plan to go to the store tonight for a replacement. Mine is less then a week old.
PixelJimi 27" 3.06 Core2Duo 1TB I had not had any issues until this morning when I turned my mac on, my office gets rather cold sometimes and last night it was very cold outside, so when I turned my iMac on it was 16 degrees Celcius!! I had about 5 instances of flickering
gerti 27" 2.8 Quad i7 1TB I only see this when I wake the system from sleep. If I restart it, I can work on it all day without a hint of a flicker.
rushpip 27" 2.8 Quad i7 1TB After 1 hour it started the flickering. Tried the restart- nothing. This morning, after 1 hour or so it started again.
olucho 27" 3.06 Core2Duo 1TB I was experiencing the same problem yesterday, once every few minutes it would tear, a few times during the day it went black for a second.
Peter Stolle 27" 3.06 Core2Duo 1TB After 3rd day, it began the flickering. I did no migrations. I did however download some High Def video from my camcorder that day. The flickering became noticeable AFTER the video transfer.
katie920 27" 3.06 Core2Duo 1TB got mine at the end of october, the screen flickering started within an hour of opening the box, before i had put ANYTHING on it.
IMACPATRICIO 27" 3.06 Core2Duo 1TB I just buy imac 27 as well and and having alot flicking every 20 minutes
chris_t 27" 3.06 Core2Duo 1TB I got my new iMac just 11 days ago and I experience exactly the same issues (flickering, blackouts, horizontal white noise stripes across the screen, etc.).
Bill Ainsworth 27" 3.06 Core2Duo 1TB Started happening on about day 5 of ownership.
Ed Roppo 27" 2.8 Quad i7 1TB Well, add me to the list of i7 owners seeing intermittent bands of static, and also occasional complete 'blackouts' of the entire screen. Very disappointing.