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macrumors newbie
Original poster
Oct 6, 2018

Has anybody experienced anything similar? The line appeared not too long ago - doesn’t go all the way like in other cases I have seen. Red, quite thin just above halfway up - most visible on dark backgrounds, less so on others.

pics here:

Mid 2010 A1312 (EMC 2390)
2.8 GHz Core i5 (I5-760)
16gb ram
Currently installed High Sierra.

The graphics card is Radeon HD 5750 - has been fine up until this appeared. No line on external display.

Any advice or direction for research is appreciated. Thanks!
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