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Apple Computing Products:
macOS - Desktop Hardware
Help! Vertical Red line on iMac display
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<blockquote data-quote="chscag" data-source="post: 1611045" data-attributes="member: 46727"><p>Attach an external monitor or TV to your iMac (you'll need the proper cable and adapter) to see if the red line shows up there. If it does, then the problem is being created by the graphics processor in your iMac. (GPU) If no red line shows up, then the problem is with the display on the iMac.</p></blockquote><p></p>
[QUOTE="chscag, post: 1611045, member: 46727"] Attach an external monitor or TV to your iMac (you'll need the proper cable and adapter) to see if the red line shows up there. If it does, then the problem is being created by the graphics processor in your iMac. (GPU) If no red line shows up, then the problem is with the display on the iMac. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Help! Vertical Red line on iMac display
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