Chosen Solution
Hi guys, I am having a strange issue with my Thunderbolt display. This was bought in November 2015 and worked flawlessly until now. Due to moving flat, I packed it in its original box and left it like there for 1 month. Today I got it out of the box and set it up. After turning on, there is a “light” line that starts to show on the left side of the display just parallel to the screen border. It looks a problem of the backlight considering that it starts okay so there should not be any dead pixels. do you have any idea or any easy fix? This is a video to show the issue:
Thank you in advance for any help!
You’er facing an under scan issue. This is where the vertical scan is falling short. Over time this can happen as the capacitors age in on the logic board. I would leave it alone.