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Q: Internal screen vertical interlaced
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Mar 6, 2011 3:50 PMby Sebastian Kox,Yeah, I have the exact same problem. Screenshots are fine, external monitor is fine as well.
I too replaced my screen (actually switched screens on two identical machines) and the problem did occur again but not as often as before. Instead of the white lines I had earlier they now are pink.
The other machine where my old screen is on is working without any problem.
It's strange that changing screens on my system didn't resolve the problem entirely, but it sure made an improvement. Before the problem occurred for hours per day, now I've only seen it three times and just for a few minutes.
I don't think it's the display data cable/led driver board because my old display is working perfectly on the other system. Maybe it's more related to the logic board or the display connector or some other connectors getting loose.
What system are you on exactly?
I'm on a MacBookPro4,1 / 2.6 / GeForce 8600M GT 512 MB
Let me know if anything progresses! -
Mar 7, 2011 5:54 AMby picturix,Hi,
my system:
MacBookPro 4,1 IntelCore 2 Duo 2.4 Ghz
Serial W88147QRYJX
GeForce8600M GT
April 2008
I think your experience is really strange.
I only replaced the panel itself, not the whole screen. The display data cabel and the leed driver board was still the same.
I am considering going to an apple store, unfortunately the next store is about 40 miles away. And I do not have the receipt anymore.
Anyway...
If the logic board is defect, it does not make sense to me to repair it, unless apple pays for the logic board.
Chris -
Mar 7, 2011 8:20 AMby DougBarned,My specs are the same:
I'm on a MacBookPro4,1 / 2.6 / GeForce 8600M GT 512 MB
The lines are green today... at least they were for several hours. Now they are white again. I've plugged an external in via the DVI output and that is unaffected.
I'm in the process of making sure everything is backed up (including bootcamp) and then I might try a fresh install of 10.6 to see if it makes any difference. Probably won't get around to that though.
Will update after my Genius Bar appointment -
Mar 7, 2011 10:50 AMby picturix,Hi all,
@DougBarned
After I made the decision to replace the panel, I saved all my data on an external hard drive and did a fresh install of the system.
During the first start of the new system I had a normal screen for approximately 5 min., then it turned back into the wired interlaced picture.
Chris -
Mar 7, 2011 12:46 PMby bazzaa,Same issue. MB134, early 2008, GT8600M GT. Started from yesterday.
Annoying. It usually takes several restarts until problem is gone.
Screenshots aren't affected. External monitor works just fine.
SMC reset doesn't help.
Just installed fan control, increased fan speed and waiting - probably overheating? -
Mar 8, 2011 5:50 AMby bazzaa,Have somebody tried to boot under Windows or Linux?
As I understood, Mac OS X reinstallation (with partition reformat) doesn't help. Haven't tried to reinstall Mac OS 10.6 yet, but upgrade to Lion dev. preview doesn't help as well.
Yesterday was a "issue-free" day (having fans running with ~4000rpm and avg. temperature ~40C), but it was rather unusual light workload for my lap: browsing and movies only.
I'm considering to install Ubuntu to see whether it is MacOS/kext issue or not. I believe not, but will give a chance to try anyway. I'm currently waiting for problem to appear again -
Mar 9, 2011 6:13 PMby picturix,Hi all,
funny news from my MacBoiok pro. Slowly but surely my impression is that this f... little computer try to make fun of me.
I have made a reservation for the genius bar in the Apple store at Lancaster for tomorrow morning. I already installed a new system, which did not help, but have not done an upgrade until today. Why upgrade, with the new system the computer is in its original state. Anyway, the Apple people advise to do an upgrade, so here we go.
After I restarted the computer when the update was done, the problem was still there.
Thereafter I have run the hardwaretest again,... and guess what... , at the moment I press the start button to initiate the hardware test, the screen flipped back to normal. BTW the hardware test was...........NEGATIV.
Pure coincidence ?
Whatever... I think I go to the Apple store anyway, they can check the hardware, and I can check the new MacBook pro..... :-)) -
Mar 10, 2011 2:01 AMby DougBarned,Sorry couldn't update yesterday — they took my mac!
Update: They've taken it in for repair. Will be replacing my motherboard and testing it...
It was behaving itself all of yesterday. The guy said it passed all their in-store tests (which I thought was an odd thing to say because it said on screen FAILED in white text with a red background :/ ) but because I took a print out of some photos showing it being broken (http://design-is.co.uk/MBP-Fail.jpg) with me, he said it was probably just starting to break, which doesn't always show up. I have to wait a week
Then we'll see how it goes. I did optimistically ask if this was one of those things they could just give me a shiny new mac for — sadly no. -
Mar 10, 2011 4:08 AMby Ben Haines,Quick update, I posted a month back with the same issue. Took my MBP 17" to the Genius bar in Covent Garden (UK) and the test only failed on the very last issue (link bandwidth I believe).
They took it in for repair, replaced the motherboard/logic-board and all has been well since. All in 12 hours, free of charge (covered under the extended warranty for the NVIDIA issue)... I'm a very happy customer! -
Mar 18, 2011 5:30 AMby DougBarned,It took a week, but my mac is now back with me — working fine now it seems. Work invoice shows they tried 2 different motherboards ... which I thought was weird. No bother for me though as it was covered and therefore free.
I'll drop back if anything goes wrong / it starts showing artefacts again.
Good luck to all else!
/Doug
