Help! Vertical lines on screen on startup

dwright67

macrumors newbie
Original poster
Nov 2, 2015
1
1
Turned on my Macbook Pro 17" 8,3 the other night and the screen looked like this.

I called Apple, and the tech had me do a couple of commands which fixed the issue. But I'm trying to figure out that happened. Is it the graphics card? The HD?

I'm running the latest version of El Capitan.
 

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Max8

macrumors newbie
Apr 14, 2017
1
0
Turned on my Macbook Pro 17" 8,3 the other night and the screen looked like this.

I called Apple, and the tech had me do a couple of commands which fixed the issue. But I'm trying to figure out that happened. Is it the graphics card? The HD?

I'm running the latest version of El Capitan.
[doublepost=1492191831][/doublepost]What commands did you use? i think i might have the same problem.