G4 Powerbook Display: weird pink line fault

Can anyone explain what to do about this problem: the display has pink lines all over the place?
!http://i364.photobucket.com/albums/oo82/dogliege/Picture1-4.png!

Hi Musicspirit,
this is a long shot, but bear with me: I'm typing this on a TiBook G4 550 on which the videoconnector on the motherboard has to be slightly askew in order to deliver any picture at all. Otherwise its LCD is completely blank. Having secured this tiny plug with a piece of gaffer tape, the connection has not gone astray for 1.5 years and running...
So I'm saying it might be worth your wile to look up your PB model on ifixit.com, disassemble it and experiment a little with the lcd cable/ connector, until all looks well- which may prove difficult with an Alu model.
On the other hand, especially if you open and close the computer's 'clamshell' very frequently, we may be talking plain cable breach here, since the videocable passes alongside a hinge and is severely bent on every opening/closing of the shell.
Assuming of course Applecare has expired on your machine, otherwise: have it serviced under warranty.
Good luck! And good music!

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My monitor suddenly started flicking pick and green lines all across the monitor. I believe it's a problem with the monitor sincr when it's connected to a tv it's normal. Is there something that can be done to fix it or is it a goner? I would upload a picture but I don't know how to on here.
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Hello lin09,
There could be a few reasons why its flickering colors and it does not necessarily mean the monitor is bad.
You did make sure the cable is tightly attatched, correct?
Can you test the monitor on another computer to rule that out? That would help narrow down the troubleshooting process.
Test with the same cable. If it still flickers, test with a different cable. If it still does not work, the monitor is bad.
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what model and version of osx. You can also try a apple hardware diagnostic, restart holding option + D.

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1. Please thank those who help you by clicking the "Like" button at the bottom of the post that helped you.
2. If your issue has been solved, please resolve it by marking the post "Solution?" which solved it for you!

Horizontal lines on new PowerBook display

Here is my experience with the new PowerBook display/horizontal lines issue. Please post any constructive advice you have that I can try - either to eliminate the problem or to pinpoint the cause more accurately.
I used to own a 15" Powerbook from about 12 months ago, a 1.33GHz model. The display on this was fine. Much better, in terms of brightness and clarity, than my other HP & Dell Windows laptops. When the PowerBook was stolen, one of the main reasons for immediately buying a new replacement PowerBook was the superior display quality.
At the start of November the replacement PowerBook arrived - a 15" hi-res 1.67GHz model. The faint grey horizontal lines covering the whole display were immediately visible. The display is substandard compared to both the previous PowerBook model and my Dell laptop.
Apple Care telephone helpline suggested an NVRAM reset and a PMU reset. Neither of these made any difference.
The PowerBook was then sent back for replacement and a week or so later the new replacement arrived. This also had exactly the same problems.
Apple Care helpline this time said that they could not find any problems with the PowerBook and I should first try the PowerBook connected to an external monitor and secondly take it to an Apple Dealer to show the problem.
I tried it on an external monitor, but unfortunately this is only an old Nokia 15" CRT monitor and though the lines appeared to not be there, the quality of the monitor makes the result inconclusive.
Next up, I will take the PowerBook to the Apple Store. At the same time I have copied "Aqua Blue.bmp" onto my Dell laptop. With the two laptops side by side showing the same image, the defect in the PowerBook display is clearly visible. I hope to be able to take both machines to the Apple Store later this week. I will let the forum know the results...
So, are there any other tips/advice from users as to other tests I can run or other methods to improve the issue?
Many thanks!
It seems obvious, but please don't contravene the Terms of Use for this forum. If you want to complain to Apple, please do it elsewhere - locked posts will get us nowhere

n2o2,
I don't know what let you think that you will eventually receive an AluBook without stripe : Apple Care let you think that ???????.
I have been reading the stripes topics each day since I ordered my new powerbook, late october. I did not see one single post proving that a "free line" 15" powerbook does exist.
The real evidence would come from someone describing the difference between a "non affected" new powerbook sitting besides an affected one, coming from the same PB generation and with exactely the same LCD profile and screen / Colorsync settings.
I did not see a single story like that among the hundred(s) of posts related to horizontal lines.
I have read one post stating that the screen is "crystal clear" and "sharp". The one I received today could be described like that, but it displays those lines, except from the 8 or 10 upper rows of pixels on the menu bar.
The pb15_problems.png file is a very interesting one to me, as it demonstrates that the lines could clearly be attenuated using a single filter without compromising the sharpness/Brightness of the image.
If I compare side by side my 3months old previous generation powerbook and the new one, I must say that (except for the stripes) there is not much difference in daylight in terms of brightness but a perceptible better brightness in the complete darkness.
Well, if someone could prove that some of the new powerbook do not display this "feature", this would certainly push me to return mine. But, seeing how it is difficult to get this organized, I may not want an exchange but a refund, or an upgrade for a 17".
Please tell us quick if you win this battle.
Luc
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Hey everyone,
Whenever I open different apps, (Word, Preview, Reminders, etc.) or when I hover over apps to select them, I get these weird black lines that outline the window. I have reset the PRAM before and it fixed it temporarily, but then it returned. If I go to "displays" and switch from 1440 x 900 to 1344 x 840, and then switch it back, it gets rid of the black lines. Any ideas?? I've included a photo of what it looks like. As you can see, the black lines on the left of the window is what I am talking about. Any ideas or information will be greatly appreciated. EDIT: This did not occur until after I had upgraded to Mavericks when it came out.

Hello S:
Welcome to Apple discussions.
i think the cause could have been a finder add-on i used for a while (totalfinder), since it was an alpha build.
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so my computer has been running very hot recently and at first i though it was the battery, however it says it's in normal condition and has a cycle count of only 110. Then today when i went to go use one of my hot corners the screen froze and turned all grainy, producing green/pink lines all over the display. I tried force quitting and nothing work. I eventually just restarted it. This occurred two more times both while trying to stream videos online within the following two hours.
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Welcome to Apple Discussions!
Check in Activity Monitor to see if you have some hung up process running amok and hogging the CPU, which would cause a lot of heat. If you find one, quit it and see if the problem goes away.
It's possible you have the NVIDIA problem:
http://support.apple.com/kb/TS2377
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G4 Powerbook Display: weird pink line fault

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