Why is there a grey line on my screen?

Out of the blue, a thin grey line has appeared on the left hand side of the screen of my iMac. It's a vertical line that sometimes changes colour. I've had the iMac for less than a year, there's been no water damage or dust, the line has appeared out of no where, what do I do?

If it's covered by warranty (1 year) or AppleCare just take it in for service, either the graphics GPU has failed or the display itself has an issue.

Similar Messages

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    why is there a white line o my screen when the screen is a darker color

    Please post a screen shot of your display.  It will help to determine what needs to be done.
    Ciao.

  • Why is there a blue line on my screen?

    why is there a blue line on my screen?

    Please post a screen shot of your display.  It will help to determine what needs to be done.
    Ciao.

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  • Why is there a white line on my screen

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    This may count as a White Screen.
    Display shows a white screen
    Try putting the iPod into disk mode:
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    First thing to try is to reset your device. Press and hold the Home and Sleep buttons simultaneously until the Apple logo appears. Let go of the buttons and let the device restart. See if that fixes your problem.
    If that doesn't help I suspect there is a hardware problem with the iPad. Make an appointment at an Apple Store to have your device examined by a technician. Or contact Apple Support.

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    Not sure exactly which model your iMac is..?
    see > How to identify iMac models
    Sadly display lines generally indicate a problem with either the Display or the Graphic's Chip.
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    If the line is only seen on the Display and not in a screen shot, then it would most likely indicate a Display problem.
    If the line shows up in a screen shot, then it would most likely indicate a Graphic's Ciip problem.

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    If you have had a "local guy "repair your iphone you will not get any support from Apple for warranty OR post warranty
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    My iphone 4 was overstressed after it's housing was changed and there are these lines on the screen
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    J-dag97 wrote:
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  • I create a project w/iMovie and I have two problems:  When I try to finalize the project iMovie crashes; when I share to DVD sometimes it crashes also; if I can successfully send it to DVD and then burn a DVD there are wavy lines on the screen.  Help!

    I create a project w/iMovie and I have two problems:  When I try to finalize the project iMovie crashes; when I share to DVD sometimes it crashes also; if I can successfully send it to DVD and then burn a DVD there are wavy lines on the screen.  I'm uising photos in my project, not video.  Help!

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  • Just brought a new iPod touch and when I set it up (twice now, after resenting to factory settings) there are grey squares on all screens at the top and the apps over these squares won't open. Any suggestions?

    Just brought a new iPod touch and when I set it up (twice now, after resenting to factory settings) there are grey squares on all screens at the top and the apps over these squares won't open. Any suggestions?

    I can't envision what yo are seeing.
    If you restored to factory settings/new iPod via iTunes (Not via Settings>General>Reset>Erase all Content and Setting) and still have the problem that indicates a hardware problem.
    Make an appointment at the Genius Bar of an Apple store..
    Apple Retail Store - Genius Bar

  • I reset my IPod touch because there were gray lines don the screen, and now the screen is flickering

    I reset my IPod because there were gray lines down the screen, and now the screen is flickering, any ideas?

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    iOS: How to back up           
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    -  Make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem.
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