How to fix blue horizontal lines on imac

Help me,,,
how to fix blue horizontal lines on my imac screen

Take it to an Apple store genius bar and have it tested...a year ago there were several posts about vertical lines, sometimes blue, sometimes yellow, sometimes pink and mixtures...in every case it turned out to be due to failure of a graphics module chip. The Apple techs were able to replace the chip (the user cannot even think of doing that) for a price significantly less than a new logic board.
So, take it in and have it tested.

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Hi,
My 7th generation ipod nano is now only displaying a white screen with blue horizontal lines along the bottom. It still plays music and is recognised in itunes with I connect it to my PC.
I have reset is and restored it and it is charged.
Please advise.
Thanks,
Jess

Hi jkjuarez2012,
Thank you for visiting Apple Support Communities.
It sounds like your iPod nano is only showing the Apple logo with a white background, and you've tried many good steps including resetting and restoring the device. I know I'd miss my music in this situation.
Make sure that you followed the steps in this article when restoring your iPod:
Restoring iPod to factory settings - Apple Support
If the issue continues after restoring, your iPod nano may need to be serviced. You can use this link to find out more about iPod service:
If the issue is still not resolved, please read this information on servicing your iPod.
From:
iPod nano (7th generation): Hardware troubleshooting - Apple Support
Best Regards,
Jeremy

Pictures taken with my 1D Mark IV show a blue horizontal line at the bottom from ISO 400 onwards.

Pictures taken with my 1D Mark IV show a blue horizontal line at the bottom from ISO 400 onwards. So far nobody has been able tot tell me the cause of this problem. The body is still quite new (15000 pics taken).

I agree that it looks like a column of photosites is not working. But... I'm curious as to why this would only happen at ISO 400 or above.
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We have a 20" imac Core Duo that was purchased summer 2006 - then about 5 or 6 months ago, it started developing horizontal lines across applications (Safari, Mail, etc) and the desktop - sometimes they would go away, sometimes not... I thought is was some video driver conflicting, upgraded to snow leopard, went to the genius bar, etc... but lately it got worse to the point that it started locking up every day... this after going weeks or months without a reboot and over 3 years having almost zero crashes...
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I have the iMac G5 (NO iSight) and some months ago I discovered some random horizontal lines that went through the whole display up or down. They are not there the whole time, sometimes when I work with Aperture or even iPhoto or Safari the lines start to appear, or sometimes when I turn on the computer. I don't think they are linked with temperature, but I do think they are related to the processor use, as when they appear I hear the fans inside, which means the more of the processor is being used. I've also tried the iMac on different homes, so it's not energy related. I got the iMac to an Apple Authorized Retailer and they changed the logic board under the extended repair for the iMac G5, but that was no luck. The lines are still here, and they don't know what is causing them. Anyone knows what I could do to get the display fixed? Any part inside? Thanks, they are very annoying.

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About the RANDOM HORIZONTAL LINES I don't have any good news for you. I contacted an Apple Authorized Reseller and they took a look at my iMac G5, and after sending photos of the lines to them they could actually get the logic board replaced through an extended warranty program Apple has with the logic board and power supply. However, I brought it home, and the lines are still here. It could be something with the actual display because they told me the logic board contained almost everything, so in my iMac the logic board is (hopefully) new, or at least working. I haven't tried plugging it in to another display. But I do think it is related with processor activity; when I run many applications that require lots of processor, the lines appear, and when the task is finished, they are gone, such as the Aperture Trial (lines here don't let you even see at your pictures correctly). I'll keep contacting the authorized reseller to see if anything comes up and I'll keep you posted.
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Anyone had horizontal lines on iMac display.

Does anyone know why I have horizontal lines showing up on my imac. The genius support at the apple store told me it was the display and would cost $400 to fix. I have owned it 3 years and 1 month.

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How to make a horizontal line in java html browser?? without hr

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"I work for HP."
Please click the "White Kudos" star to say thanks for helping.
Please mark "Accept As Solution" if my help has solved your problem.

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JFJ_595 wrote:
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How to fix blue horizontal lines on imac

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