Why monitor displays a lot of lines on screen?
After I startup my iMac there's a lot of lines on the screen. Now I am unable to see what's on the screen.
Could it bethe monitor faulty?
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Please, connect your iMac on an external monitor and tell us if the video output is normal. It's the first step to troubleshoot a screen issue. The issue could be related to a bad GPU (graphic processor unit) located on the logic board or a screen internal component such as LVDS cable or the LCD panel. You can exclude the inverter and backlight failure if your screen still has lightning.
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Your answer was so much better than mine that I deleted mine. one up
Hi lemerise,
Thank you for the insightful tips.
How do you connect to an external monitor?
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Look at this first then tell us what kind of lines, in what direction, what color and anything else you think we may need.
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How do you connect to an external monitor?
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Check on here http://support.apple.com/en-us/HT2567 and here http://fairerplatform.com/2010/06/how-to... as well
