Screen flickering after Mojave update

Radeon Pro Vega 16 4080 MB

Intel UHD Graphics 630 1536 MB

Regardless of using Chrome I had the issue. Now I switched on and off a few settings ("Automatic graphics switching") and quite iPhoto and the problem has ceased for now.

Previously I had also tried both of these but the problem returned:

https://support.apple.com/en-us/HT201295

https://support.apple.com/en-us/HT204063

This has been happening to me, but only when running graphics intensive apps like Steam games, Moonlight game remote gaming or playing my PS4 remotely. All 3 of these started doing the same flickering with a green bar at the top of the screen after I updated to 10.14.6. It's not coincidence, its definitely a software issue with the OS.

I sent a bug report (they call it feedback now) and I suggest everyone else do so here

https://www.apple.com/feedback/macos.html

Hi, I'm fairly new to Mac. I have a bought my first Mac (new) in 2016. MacBook Pro 13" Mid2012. I'm unsure of the correct terminology for what's going on but I assume we are referring to the same thing. I attached a picture below. I recently replaced my optical drive with the manufacturer HD and installed a larger main HD. I then upgraded to the new OS Mojave. I first noticed it after having in my car on a cold day. I though maybe the coldness froze it or something. But I continued to notice it after it stayed in the house and whenever I would startup or wake up, either the window borders would have static or the entire screen like below after boot up. I don't do too much graphic or media on my mac besides a little photoshop, so I assume this is a Mojave problem?? Have you found any solutions?

Thanks, T

Yes I have the same system and mine keeps flickering as well. If I restart the computer it works for a while, then it flickers again.. this is so annoying since I my first generation 15 MacBook Pro was a disaster with the keyboard. And now having flickering issues with this one... You pay all this money and get these issues... It’s ridiculous

Same issue here. Since I did the update yesterday theres a lot of flickering. Really not easy to continue working with the Macbook Pro. Btw: my Macbook Pro is 15" 2016. Hope there's a bugfix on the way ...

In my case, everything is ok with basic Retina display mode in Mojave, but if I changed display resolution with non-Hidpi (2880x1800..ect) after waking up it appears flickering and also Gpu memory keep rising to 100% especially in iPhoto. The default resolution of the MacBook is ok with sleep mode. but if i change non-Hidpi resolution with resolution changing application with vega20 are switched before sleep mode, it appear to be flickering after waking up due to the exterior and the built-in graphics. if I terminate specific application and the graphics changed exterior to built-in and flicker disappears. We should put a little more weight on the software problem.

Thank you for performing the test.

I do not know the reason for Peak usage of the AMD, just see it has one.

Why is Mojave doing that I do not know, but it can have something to do with API called Metal (an Apple Graphics program) that is responsible for giving instructions to the GPU (AMD).

We are going to have to wait and hope Apple fixes it, since right now one does not know how to fix it.

Thank you Migum_Snoring.

I too was plagued by the screen flashing problem on a 2018 MacBookPro running OSX Mojave 10.14.3 with Vega 16 graphics card. But your astute observation that it only happened on lower-DPI resolutions proved correct in my case. My eyesight is failing so I'd scaled to 1440x900. But by going to System Preferences / Display / Default for Display the issue has disappeared.

I'm going to give it a couple more days and if it doesn't reappear, submit a bug report to Apple. Much simpler than all the other solutions. Thanks again!

Do you have System Preferences-Displays set to "scaled"? If so, a switch back to "Default for display" and then back to "scaled" - this helps for me.

After a few wake from sleeps, the flickering may reappear but the same Display tweak can again resolve (at least for me...).

Yesterday I've left my MacBook Air 2018 in service center (the situation is: display flickering during turn on mac and entering to Guest window). finally, they have changed to a new MacBook (conclusion was: motherboard problem). I'm happy bringing new one at home, start to work, release update Mojave 14.4 changed display scale. and everything returns back as it was on the first crushed computer. :( its terrible... do not know what to think, is it coincidence and both of mac books are crashed? I do not believe...

here аs I have guessed 2 reasons cousin this problem. first is Update and second is display scaling. when I reset display scaling to default its start to flickering just in a second during loading home, apple logo becomes on 1-2 second red. and when I have scale display picture is terrible .. on settings default scale resolution it leads better...

waiting for your replies and ideas

When Made a discussion about how this was happening I was told a hardware issue even though this has never happen and I believe it’s a software issue, so instead apple should be fixing this or have a program for this instead letting this happen

Mine just started doing this on 10.14.5. I had the issue with 10.13 but it went away and now it's back. It has to be software as it changes behavior with different OS versions. Has Apple said anything about this?

Actually I recently saw a YouTube video where Apple suggest something about backlight/ flickering maybe accusing his but I’m not sure if it’s still valid and I can still do it I’ll see if it might work