Chosen Solution
I was trying to find answers for colored vertical lines that pop in and out of the display and eventually came across answers on iFixit that seems to indicate my issue is TAB related. I just wanted more information about TAB errors since I wanted to confirm that it’s the same issue that I’m currently experiencing! The display randomly seems to return to normal when the laptop is on a flat surface and when the lid is not in motion. Is this indicative of TAB errors? Like some other posters have mentioned, pressure on the display does seem to multiply these lines, however after letting the display rest for a while it seems to go back to normal (no visible lines). The lines seem to always pop up on the login screen but seem to disappear on the desktop page (which has the same image as the login). I’ve tried performing the hardware diagnostics and nvram reset but nothing seems to pop up as odd. Lastly, is it likely that Apple would be able to replace the display since it’s still under warranty and there were no incidents involving falls/drops/pressure/water with the device? Pics added in edit, screen is a little dirty but I think it’ll be clear to see. Normal (No lines are visible whatsoever):
When pressure is applied via finger:
The screen returns to normal when on a flat surface and gets 3-5 lines when in motion at a specific small area.
Well … It could be a TAB error Unlike the older 2015 MacBook Pro’s which routed the display cable through a hollow hinge, the 2016 and newer MacBook Pro’s use a split design moving the T-CON logic from within the lid to the main case area. This then requires the column and row lines to pass between the lid and the upper case as you can see here
Photo credit: @just1ed www.macplus.sg So what likely happened is you banged the clutch cover which protects the cables. a few of the lines got damaged. A TAB error tends to be one color as one of the columns of a given color is effected. Here you appear to have seven to eight connections effected which I’m thinking the ribbons got damaged.
Hi @albatrossen I have the same problem, did you get it fixed under warranty? Thanks so much for posting!
