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iberras Author

Level 1

31 points

Flickering Screen with macOs 10.12.4

Im experiencing a rare issue. My screen on my Mac is flickering after the last Mac update. This was not happening before. The screen never showed this behavior, but after the update, its happening frequently. I have an 4k monitor connected with DVI and the smonitor is showing a different flicker but showing one too.

Does anyone have a problem like this or similar? I've read that the Mac mini has a problem with black screen. This is not my case. Just flickering with weird spontaneous lines of multicolor.

MacBook Pro with Retina display, macOS Sierra (10.12.4)

Posted on Apr 2, 2017 6:55 AM

Top-ranking reply

Filip Camerlynck

Level 1

20 points

Posted on Apr 22, 2017 2:24 AM

Hi, I had this issue too, and after resetting my MacBooks NVRAM I solved the problem. Hold the power button down until the Mac shuts off completely, and then press it again and immediately hold down Command-Option-P-R.

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29 replies

tarinya

Level 1

4 points

Apr 22, 2017 3:04 AM in response to Filip Camerlynck

Thanks so much @Philip. Resetting NVRAM seems to have solved the problem in my case too.

NVRAM auf dem Mac zurücksetzen - Apple Support

jmgps

Level 1

4 points

Apr 2, 2017 8:42 PM in response to iberras

Yes, but not on my second monitor—it's fine.

Apr 25, 2017 1:20 AM in response to Filip Camerlynck

I did this and it helped for a few days. Now the flickering is back.

tarinya

Level 1

4 points

Apr 25, 2017 1:23 AM in response to xandreasx

Unfortunately, it only helped for a few days in my case as well.

Apr 26, 2017 7:50 AM in response to iberras

After resetting NVRAM, the problem wasn't be solved. So I went to Genius Bar, the Genius replace the motherboard for me and it seems like everything is OK right now.

Apr 26, 2017 8:17 AM in response to xandreasx

Resetting NVRAM help but only for 1 or 2 days.

Yes, I think it is related to the 10.12.4 updates. But the problem makes my work unhappy. And I'm not sure when the fix version will be released.

Apr 26, 2017 8:30 AM in response to Jianjin Fan

Can you keep us updated if the problem comes back? If it doesn't get fixed with the next update, the change of hardware becomes a more attractive option.

Apr 26, 2017 8:36 AM in response to xandreasx

OK, I will keep updates. I recommend go to Genius Bar for some advice.

Jun 6, 2017 10:25 AM in response to xandreasx

I tried all these options but none worked. I reinstalled the OS, 10.12.5 and preformed the resets in the post above. The flickering is till happening, although it is not as bad as before.

Jul 5, 2017 12:38 PM in response to iberras

Had this problem, too. Flipp's suggestion about resetting the "P-Ram" worked for me.

Aug 14, 2017 11:54 PM in response to Dianakmena

I also did the command+P+R and nothing changed. I had the chance to reinstalled the OS but it didn't´t fix the problem 😟

Aug 14, 2017 11:57 PM in response to xandreasx

How can I downgrade? My apple store only shows the latest.

Nov 8, 2017 3:31 AM in response to iberras

I have a terrible flickering screen problem. I have updated to Mac OS High Sierra Version 10.13.

Help!!! My Mac is unusable almost.

Jan 1, 2018 8:24 AM in response to Filip Camerlynck

Thank you so much Filip. It worked! Hopefully won’t start again. Appreciate your posting.

Susie

Flickering Screen with macOs 10.12.4