Currently Being ModeratedNov 14, 2011 5:30 PM (in response to Daniel Santos)
I am seeing the same problem. Its only happened a handful of times over the past 6 months or so, but today its happened 4 times. I'm on a late 2008 Macbook Pro, NVIDIA GeForce 9400M, running Lion. My external monitor continues to work, even when the laptop screen goes black. I've seen it occur both when it is connected to an external monitor, and when it is not. Closing the laptop and reopening sometimes brings the screen back. Other times I have to restart.
Currently Being ModeratedDec 15, 2011 6:31 AM (in response to nashN3D)
Sent the machine to an apple service center, and they will replace-it for about 700€. But the backlight seems to be working, and the LCD isn't damaged. Could it be a software problem ? Loose cable, from opening/closing the lid ?
I searched for replacement parts and thought about fixing it myself, but I still don't know what is wrong with it.
Currently Being ModeratedDec 15, 2011 7:32 AM (in response to Daniel Santos)
Daniel, read this article and then check again with the Apple service center to see whether your machine qualifies for a free logic board replacement:
NashN3D, this advice doesn't apply to you. Your machine has an entirely different GPU and can't have the problem addressed in that article.
Currently Being ModeratedDec 15, 2011 8:46 AM (in response to eww)
I saw that before sending the machine for diagnostics. When I handed over the machine to them I alerted them to that fact. The diagnostic turned out to be a faulty LCD, even though its a rather vague explanation.So I guess its not covered by that program. And in fact I can use the machine with an external monitor, so that means the GPU card is OK.
Currently Being ModeratedJan 4, 2012 7:32 PM (in response to Daniel Santos)
Hi, my late 2007 15" mbp just went dark on me. I can ssh into the machine and run the system_profiler command. Get a load of this: my nvidia gpu no longer shows up and instead it reports an onboard intel gpu with 64mb shared memory.
That TS2377 link above indicates that 4 years is the magic number. I bought mine nov 2007 which is obviously more than that. What are my chances that the article is stale and they'll fix my Mac (assuming this really is my issue)?
Here's part of that output:
VRAM (Total): 64 MB of Shared System Memory
Vendor: Intel (0x8086)
Device ID: 0x2a02
Revision ID: 0x0003
Kernel Extension Info: No Kext Loaded
Model Name: MacBook Pro
Model Identifier: MacBookPro3,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 4 MB
Memory: 6 GB
Bus Speed: 800 MHz
Currently Being ModeratedJan 4, 2012 7:43 PM (in response to bmauter)
No one here can predict how Apple will respond, but clearly you're not within the time window, so you'll be depending on good will rather than any obligation on Apple's part. To have any chance of success, then, you'll need to be calm, civil and reasonable in requesting that your machine be tested for the NVidia fault and repaired free of charge if the fault is detected. Good luck!