Screen flickering at the bottom portion of my screen with horizontal lines

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Level 1

13 points

Screen flickering at the bottom portion of my screen with horizontal lines

I'm using a Macbook Pro 2017 with Touch Bar. I noticed that every time I'm downloading or updating an application, even my OS, a flicker with horizontal lines occurs at the bottom part of my screen. It worsens every time, so what I have to do is put my Macbook into sleep mode, and the flicker will be gone for a little while and then come back again.

But, I also noticed that it also happens randomly when there's a heavy app running. I don't know anymore. I tried resetting the SMC and NVRAM, but it still occurs every time.

Is there any other way than going to a technician? Thank you in advance!

MacBook Pro 13″, macOS 13.0

Posted on Nov 1, 2022 10:26 PM

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Answer 1

Tesserax

Level 10

157,764 points

Nov 1, 2022 11:05 PM in response to bukoujuice

Hmm. Well everything you have been telling indicates that this may be a hardware issue ... with one or more of the following areas:

The display itself.
The cable between the logic board and the display.
The logic board /GPU

As far as Apple Diagnostics, do you happen to have a monitor available? If so, you can try connecting your Mac to it, and then, run the tests.

Otherwise, since this is getting worse, your best course of action is to contact Apple Support directly. To do so, simply select the Get Support link in the upper right-hand side of this forum's web page. Good luck!

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Answer 2

Tesserax

Level 10

157,764 points

Nov 2, 2022 8:19 AM in response to bukoujuice

If your notebook displays properly on the external monitor, then that rules out a logic board /GPU issue ... but that still leaves either the display cable, or the display itself, potentially being the issue. Both of these would require an Apple Technician to have them looked at.

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Answer 3

Tesserax

Level 10

157,764 points

Nov 1, 2022 10:41 PM in response to bukoujuice

One last thing you can try is to run the Apple Diagnostics to see if it uncovers any hardware issues with your notebook. Per chance, did your notebook experience any type of liquid spill?

Ref:

Use Apple Diagnostics to test your Mac - Apple Support
Apple Diagnostics: Reference Codes - Apple Support

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Answer 4

bukoujuice Author

Level 1

13 points

Nov 1, 2022 10:53 PM in response to Tesserax

I tried doing the Apple Diagnostics but while the diagnostic is working, the flickering horizontal lines appear again, and my screen blacked out. Now, I can't even run diagnostics. What to do now? Anyway thank you for the response. And no, my macbook didn't experience any type of liquid spill.

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Answer 5

bukoujuice Author

Level 1

13 points

Nov 1, 2022 11:31 PM in response to Tesserax

Thank you so much for all the responses. I tried running diagnostics again, and the results are "No issues found. Reference Code: ADP000". What might be the real problem here? And yes, I will try to connect it to a monitor. Thank you.

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Answer 6

bukoujuice Author

Level 1

13 points

Nov 1, 2022 10:38 PM in response to bukoujuice

I also noticed that when I'm using my mac for a meeting (Google Meet), the flicker worsen and my screen will be black, I have to close and open my laptop again just for the screen to come back.

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Screen flickering at the bottom portion of my screen with horizontal lines

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