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The Apple Support Community will permanently close on November 20, 2026. Starting today, the site will no longer accept new posts and is available in a read-only state.
You can continue to find trusted guidance and support on the official Apple Support site.
We want to thank the community members who have contributed their time and expertise to help others with their Apple products.
why is there a horizontal line across my imac screen?
iMac, Mac OS X (10.6.8)
Do you see it all the time? If so, it's a display or display connector problem, but first, reset the PRAM > http://support.apple.com/kb/HT1379 Also, do a SMC reset > http://support.apple.com/kb/HT3964
If they don't work, I suggest you to take the iMac to an Apple Store or reseller
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.
To check, take a screen shot of the display using the (Command Shift 3) keys and open it.
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.
Hi bro,
Thanks in advance for your reply...
*If the line is only seen on the Display and not in a screen shot, then it would most likely indicate a Display problem.*
Exactly same at my macbook bro. Warranty expired. What should I replace basically ?
Thanks
Salim
why is there a horizontal line across my imac screen?
