MBP 13 2019 black flashes in part of the screen

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52 points

MBP 13 2019 black flashes in part of the screen

Hey!

I just got a MBP 13 2019, with touch bar, and sometimes I'm experiencing black flashes in part of the screen for a fraction of a second.

I don't know if they are more or less normal, or what is going on. I really think they are related to software, but could be anything. In the beginning I thought that they were related just to safari, but I just experience one while on Mail App, so perhaps are more system wide, it's just that I happen to be on Safari while they happen.

The issue seems to happen more often while on battery, but right now I'm connected to the power source.

Seems that there are some other people experiencing something similar, but I don't know if it's the same issue.

Is any of you experiencing the same or similar issue?

MacBook Pro Retina

Posted on Aug 11, 2019 5:35 PM

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Answer 1

Best reply

dsfagundes

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19 points

Aug 12, 2019 9:30 AM in response to lpuerto

Yes, the issue goes away for a while, only to return later. I have had some mild flickering right after waking my machine up, so perhaps you're right, but I've also had the same issue a long time after wake up. So there's definitely something else at play here.

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Answer 2

Aug 12, 2019 4:21 AM in response to lpuerto

Yep, I have the exact same issue. Happens both when connected to power and when running on battery.

Some people have said they took their MacBook to an Apple Store and got a replacement, only to have the issue reappear in the new machine...

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Answer 3

lpuerto Author

Level 1

52 points

Aug 12, 2019 10:23 AM in response to dsfagundes

But does the issue return, before you sleep your computer or after??

I really believe mine only returns —if it does— after sleep.

The funny thing is, while I have the mac connected to an external monitor, I never ever have experience the flashes.

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Answer 4

Aug 12, 2019 11:16 AM in response to lpuerto

I recently got a new MPB 2019 13" and I am having the same problems too. It's only happened once or twice but the lower third of the screen flashes red or white very briefly. I wonder what the deal is...

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Answer 5

Aug 12, 2019 12:57 PM in response to amadden123

It's hard to know whether this is related to software or hardware, but considering that some people have got replacements and still have the same issue, I would say software is at least partly to blame.

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Answer 6

lpuerto Author

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52 points

Aug 12, 2019 9:07 PM in response to lpuerto

I've been working on battery part of the day… and opening and closing the lid at pleasure… no flash today. I really think it's something that happens when you haven't reboot the computer for a while. I mean, something go wrong in the software that manage the screen and that is the result (I guess).

Anyhow, this is just a guess and of course could be also something related to hardware.

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Answer 7

Aug 18, 2019 6:29 AM in response to lpuerto

Hey @lpuerto,

Quick update (and possible solution): last week, I noticed that the flickering occurs especially when the screen is adjusting to a new/warmer ambient light. I decided to turn off True Tone and auto-brightness, and haven't had a single glitch ever since! This was on Thursday, BTW.

I suggest you try doing the same, let me know if it works for you. If this is indeed about True Tone and/or auto-brightness, I would imagine Apple can solve it through a software update.

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Answer 8

lpuerto Author

Level 1

52 points

Aug 18, 2019 7:05 PM in response to dsfagundes

Good to know and pretty logic… That was something I was thinking too! Since I don't have two graphic cards between the computer change, the source of those jumps only can be the True Tone and auto-brightness.

Thanks a lot for the input!

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Answer 9

lpuerto Author

Level 1

52 points

Aug 12, 2019 9:06 AM in response to dsfagundes

if you reboot the issue continue? In my case seems that if I reboot the issue go away. Seems that the issue is related to wake up from sleep or something.

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