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Blue stripe appears on Mac screen after closing lid


Last night, I put my mac screen down, without shutting the computer. Look, I know, it's bad and I shouldn't do it, it's easy. I fully take responsibility for doing it. This morning I opened it and it had a weird blue stripe across the screen. The photo is from later, but it looked exactly like this.

Barely noticeable, but annoying. I tested that it showed up regardless of what was up on screen. I tried rebooting the laptop, just in case it would help. And it did. It completely went away by rebooting.

And then I had to move rooms with the laptop (a good 4+ hours since the issue first fixed itself) and I closed the screen because I would be on the laptop again in less than two minutes. The stripe reappeared. I tried rebooting again, but the stripe is still here.

There was nothing between the screen and the keyboard that could have been caught in the closure.

I've never experienced any issues. The laptop is a couple years old, but is fully functioning, and when compared to my wife's even newer mac, a bit faster. I don't know what to do, it's just noticeable enough that I can't try to forget about it.

1 reply

Try booting into Safe Mode. Start up your Mac in safe mode – Apple Support (AU)

Leave the Mac in Safe Mode for 20 minutes or so.


Then reboot to see if the issue returns.


Another thing to try is to connect to an external monitor, if you have one. If the stripe is present on the laptop screen but not on the external monitor, then that would indicate that there is a defect within the laptop screen itself. If the stripe appears on both screens, it could be a problem with the graphics processing in the laptop or a software problem. However a software issue should go away under Safe Mode.


You did not do anything wrong, laptop users should be able to routinely close the laptop lid like you did.