Chosen Solution

Dear community, please help me, I have a really strange problem with my MacBook Pro A1502 (Early 2015 13"). I bought this MacBook used a few months ago. Everything worked fine, no problems. A few days ago I have a song about Added iTunes and all of a sudden the image started flickering and wouldn’t stop.You can see it in the images below how it manifests itself on the screen.It occurs from the boot process about when the loading bar is about halfway through and the only thing then flickering is the Apple logo and loading bar. Flickering does not occur when: My MacBook is connected to an external monitor via HDMI or Thunderbolt 2 (no flickering on either screen, everything works normally)The MacBook starts in safe modeIt is also not visible on screenshots or screen recordingsAs soon as moving images are running (i.e. videos, but also e.g. the camera frame of a person in teams) it flickers 3-4 times and then it stops. Also mouse movement reduces it.It happens less often when CleanMyMac is running in the background (I installed the program after the screen flickered for the first time)The Problem does not occur on Windows 10 installed with Bootcamp

What I’ve tried so far: Mac OS Montery 12.1. newly installedMacOS Montery 12.1 CleaninstallMacOS Mojave Clean InstallChanged the LVDS cablePRAM, VRAM, SMC reset If I do nothing then it flickers at irregular intervals, duration and in different patterns and colors. The last of my attached pictures shows how the flickering manifests itself in full screen mode. As soon as I’m in full screen mode, it’s mostly just grey/white squares. I’m thankful for every idea you have, because I don’t have ideas any more. Greets from Austria Philip

What does an external display show you when you plug it in? If it shows the same thing then the Graphics engine within the CPU has failed. If the image is clean then the internal display is bad and needs replacing. Unlike the older Unibody systems the video signal is not LVDS which can have issues with the cable creating some strange artifacts. Here with the Retina series Apple moved to eDP/iDP signaling which is more akin to the different between analog TV vs digital TV, so a messed up cable just won’t work or you get image tear blocking which I don’t see here.

hi Guys I have almost the same problem and same means of not having the issue on a macbook 2017 13in without touchbar A1708. Alsmost same as I have flickering blanc screen One additional “fix”. When i have CleanmymacX opened on the main menu… flickering and black screen disappear. It sounds like GPU settings could fix (loading the GPU in MacOS under the same parameters as windows 10)… but i have no idea how to do that. Any idea, very welcomed (I’ve tried enabling color filters in accessibility as suggested in a youtube video but it doesn’t work for me) Cheers