MacBook Pro screen blinks

same problem here: late 2008 MBP after Logic board repair occasional flickering. received a new board with newer sw: only advantage seems lower power consumption.

Hardwareoverzicht:

Modelnaam: MacBook Pro

Modelaanduiding: MacBookPro5,1

Processornaam: Intel Core 2 Duo

Processorsnelheid: 2,4 GHz

Aantal processors: 1

Totale aantal cores: 2

L2-cache: 3 MB

Geheugen: 4 GB

Bussnelheid: 1,07 GHz

Opstart-ROM-versie: MBP51.007E.B05

SMC-versie (systeem): 1.33f8

Guys, I think there will be no fix with 10.7.3 release.

http://www.macrumors.com/2012/01/10/os-x-10-7-3-build-11d42-seeded-to-developers /

Yes, because THIS IS A HARDWARE DEFECT.

There will be no software solution. Anyone who's experiencing this needs to insist that his computer is replaced. It's that simple. How many thousands of people have to post in this thread before THAT IS OBVIOUS?

This is a hardware defect. It can't be fixed with software.

DEMAND THAT YOUR COMPUTER BE REPLACED. The speculation and toleration of this defect NEEDS TO END NOW.

It's not going away. Anyone who has this problem has a terminally defective computer. Demand a new one. Enough is enough.

What i find hard to understand is that my 2008 MBP only flickers when im on OSX, not when it's in any diagnostic mode...

i too also had my logicboard (2), HD (1), Complete upper clam[LCD] (2) and the supper drive failed on me... and still no luck. 😟

Flicker is so bad that safari cant handle more than 3-4 windows at a single time without crashing and even listening to itunes makes the computer stall/ freeze.

I'm in the exact same position that you are in. Dropped it off on Monday and AppleCare expires tomorrow. Was told they are replacing the logic board, screen, optical drive, and power cord. I contacted the APR on Tuesday and they couldn't get the machine to replicate. I took the drive there to have them witness it doing it to me. Fortunately, we were able to get it to replicate all the problems. Off to Apple it was sent.

My concern now is how long is this going to fix the problem, that is if it does? Reading about everyone else's nightmare's, I'm not so sure it's going to be a reliable machine when I get it back. It's very important to me! It's only been since monday that I haven't had it and it feels like a lifetime.

I have a macbook pro late 2008. Same exact thing, within the first year the flickering screen got so bad i brought it into an apple store and logic board was replaced i was told that was the problem. It helped but the flickering began again slowly and the machine wouldn't go to sleep when shutting the cover about another year in. I brought to the apple store again, 5 days later it was returned last night to the store and i got phoned it was ready, I waited 20 minutes for a manager to bring the machine out to me, asked if i wanted to fire it up at the store, i said i beleive them (plus they supposedly test it in the store too before giving back to the customer) and got home to a worse flickering screen. Went back today, all they suggest is to send it off to apple care again. Short of demanding a new computer (doubt they will do that?) i told them how unhappy i was to now be put out yet another week. They said take up w/ Apple Care. I called Apple Care, they said take up w/ the store. I almost gaurantee the next shipment will have the same problem since its the logic board everyone here has mentioned is the problem. If they replace my logic board again, its the third one in 3 years as my apple care runs out in 30+ days. Very frustraded. Emailed apple feedback, positive nobody will write back. Seems like you're put in a corner to either deal with it or buy a new computer

keep trying! go back to back to back everyday. It took me more than 2 months of waiting and 3 logic boards, 2 displays, 1 trackpad replaced and a lot of software tests. Finally after all that and a lot of nightmares, I got a new 2011 MBP. Don't worry about the applecare expiring, you have 90 days of warranty with each part replaced and they need to fix your problem even if your applecare expired. Also call applecare and speak to costumer relations and explain all the issue. Remember not to be too mad but very disappointed.

BTW if they approved a replacement, apple will give you a new MBP but with alike specs. I had the top late 2008 15" MBP and they approved the 2011 lowest model because it has same or better specs. BUT I insisted and they gave the top one and I did a few upgrades (7200 HD and HiRes display); at the end it was all free of charge.

15" MBP 2.4 / 1G VIDEO CARD/ 7200 HD / HiRes display

Hello everyone

I have an early 2009 17-inch MacBook Pro, 2.93 Ghz Intel Core 2 Duo with NVIDIA GeForce

9400 M and 9600M GT.

I've been using and loving my MBP for 2 and a half years.

Three days ago the flickering issue started.

I tried everything I could find:

- Tested both graphics cards

- Reset the System Management Controller (SMC)

- My graphics firmware is up to date - gMux Version: 1.7.10

- Reset PRAM and NVRAM

- Removed Snow Leopard and installed Lion.

The issue is still here. I talked via phone to Greece's Apple support and after trying some of

the above approaches, he concluded that it is a hardware issue.

He told me that Apple had a program to replace a previous MBP model

but they did not have one for my model.

I guess he was referring to this http://support.apple.com/kb/TS2377

I really don't get it….people still report the same issue over and over which means it is

a manufacturing problem. They are replacing the previous model and not mine which

has the same issue? Considering also that I'm not the only one with an 'early 2009' flickering model.

The technician told me that the previous model had faulty NVIDIA graphics (8600M) cards and Apple's

replacing program was about that. The fact that the flickering is still here means one thing..it was not just the graphics card that was faulty. The problem is more serious and deep and there is still no solution.

The technician advised me to fix it with my own expenses..fix what? The logic board? The graphics card?

The display? ( btw it is a beautiful matte display )

I paid 2900 Euros in cash and after 2 and a half years my screen behaves like a broken TV set.

I switched to Apple 12 years ago and I was always happy for that move.

Now I feel terrible

This is my situation also except that I have the 15 in. MacBook Pro, 5,1. I don't regret buying the computer but I think Apple should be concerned that the problem extends beyond the range where they defined it. It is not bad enough to cause me to shoulder the expense of the repair, and I have resorted at times to using the higher quallity display, at the cost of battery life and elevated temperatures.

What I still do not understand:

The problem exists with the 9400 chip but I only experience the problem on the screen of the macbook pro. When I connect my led cinema display there is no blinking on the led cinema display (still using the 9400 chip, clamshell mode)

Correct.

Thank you iDeck for the suggestion.

I tried it and the flickering is still here.

Now, there are also horizontal 'shadows' extending from the left and right side of every open window up to the end of the screen. When I move the window, the shadows follow it. It is a shadow indeed 🙂

Also, when I scroll in preview or safari, the shadows move along

I regret that it doesn't help you 😟 I'm using safari just now without any flikering or shadows.

My MBP is:

MacBookPro5,1

2,53 GHz

Boot ROM: MBP51.007E.B05

SMC: 1.33f8

Mac OS X 10.6.8 (10K549)

kernel: Darwin 10.8.0

I'm moreover using gfxCardStatus to switch between vcard

Did you increase the RPM of both fans?

I increased both fans to 3500 rpm.

The good news is that the flickering is not happening very often, like yesterday and the day before.

The shadows are always visible but they are not that annoying.

I guess I'll just have to get used to them until Apple does something.

Thank you iDeck

ok. Had same problem. After two motherboards and one screen replacements got new machine! So, good luck everyone! 🙂