Display Issue - Horizontal blue lines in application windows

I have had the same issue for months now (and yes, on macbook pro 16'' 2019). I have entered 2 tickets with Apple in the past few months (with no real resolution from Apple). When this happened again this morning, I decided to search and see if others are seeing this problem, and indeed, there are many people facing the same issue, as I see on this page!

So, I decided to open yet a new ticket with Apple and wanted to direct the support person to this page to show that many other people face the same problem. Frustratingly, after I informed them that reset of NVRAM and other steps didn't work in the past, they asked me to *REINSTALL* the system. I told them this is ridiculous.. many people are seeing the issue and your response is to throw this issue back at the user and ask them to wipe their computers first to see if the problem persists! I refused to take hours and hours re-installing, considering I keep my OS up to date with every new update!

So, long story short: has anyone re-installed and did that solve the blue-lines distortion in your case? Additionally, did you have to just re-install the OS, or did you have to reset the computer to factory default; i.e. wipe it clean?

I have the same problem, but it also appears in the whatsapp application.

I already reset the PRAM, SMC, Reinstall OSX, I reset PRAM, SMC and reinstall OSX again. and nothing, the lines keep appearing

That also is another confirmation! The issue is not having a faulty chip on your motherboard! Apple replaced your computer's motherboard with an identical one (that has the same chip). So, they basically didn't do anything!

I am interested in your experience after upgrading to Big Sur; I am really hoping it is a software fix (driver).

Also, out of curiosity, did you go back to Apple support and tell them the issue was not solved by replacing the motherboard, and what was their next step? If I were to guess, they recommended waiting for the next upgrade in the OS.

Hi Everyone, just to clear things out. After a PRAM reset etc it dit not happen again, the macbook only gets Really hot, like keys and chassis, so hot it hurts if you leave your finger on it for more than 5 secs. Afterwards i tried bootcamp and run Windows 10, under windows 10 the card makes little more noise but keeps kinda cool. Playing games heats it up like in mac os running a browser or teams or other low profile apps... I think it is rather a software problem for the heat at first, and then there is the heating problem, it seems AMD still hasn't solved their heating problems they face from start, which is 1969 or what? I do not understand why Apple who stands for quality and high niche prices chooses AMD over NVIDIA and to do what skimm prices ?? isn't apple proud statement they stand for quality? I really do not want to be the person who thought, hey, AMD is good, let's choose this for a GPU. AMD is good for one thing and one thing only, mining cryptocurrency and nothing else... for now we are stuck with a (and I didn't choose to buy it, my company did it for me..) 200 dolar windows like performing laptop that we (they) bought for 2600 dollars... thanks Apple...

For the love of God! I can't unfollow this thread! I unfollow, and then reload the page, and it says I'm still following it! I've been getting these email updates on thais thing since APRIL. STOOOOOOOP!

I'm using the latest Chrome "Version 85.0.4183.121 (Official Build) (64-bit)" – I followed your direction, went to chrome://flags and typed in "Metal" but nothing shows up.

Anyone else having the same issue?

Did someone else find a different solution?

thanks

This bug has made it near impossible to use my Macbook for work. I'm a software engineer that uses vs code (electron), slack (electron), and all flavors of browsers (mostly chromium based).

I find myself having to restart constantly in hopes that I don't have green/blue lines everywhere...

Even the chromium "fix" of spam restarting the gpu process for those apps seems to be hit or miss. Sometimes on the 3rd or 4th or 7th time the artifacts will disappear. Regardless, after spam restarting those processes, the app never seems to work right until closing and opening again which, you guessed it, caused the artifacts to reappear. So, I'm back to restarting the machine.

I guess there isn't a definitive solution yet? Is Apple waiting for people to just give up on this?

Disabling Hardware Acceleration is NOT a solution, it's like having an Hybrid car and turning off the engine just to run on electric motor.

I am fed up with this situation and it is unacceptable. I can't continue working like this.

Totally the opposite for me, I used to have it less before but now it's happening every time my laptop wakes up from sleep. I also have CalDigit TS3 docking with 2 external monitors. It happens regardless laptop is connected to docking station or not.

Yeah, ah, force-quitting Renderer, Spare renderer and GPU Process in the Task Manager just turns out to be the same as turning off hardware acceleration, so not as helpful as I thought it might be... Sorry folks. Thought I was on to something...

@Chuank : This is the best summary I have seen so far. I too am stuck in a hard place working with WebGL every day. Apple needs to address this issue because I feel like I bought a high end MBP that is useless and I wasted my money with Apple.

ileradeltercomondo wrote:

I find this a disappointing response from both Google and Apple.

It's also happening for apps that are not using/depending on Chromium devkit. So I think Apple is the only one to blame here.

ileradeltercomondo, I agree. Maybe a class action lawsuit would get their attention. I paid thousands for this thing and I have to reboot it like a wintel box every day. Its a waste of time and energy.

The terms of the beta program are that you are not permitted to discuss the beta program's results in a public forum and that's what I said I was going to do, so that's a big no-no. I can't and will not now discuss how it's going the way I thought I was going to do. I have been rendered impotent in helping the people in this post with any updates on progress being made.

I'd like to echo user @chuank 's call to the moderator for some transparency with this problem. I think that this would be considered a very much appreciated and respected gesture of good will to the people who bought this products in good faith that they would work as described.

Ha! I can empathise with the black hole. From my recent experience challenging a MBAir 2020 fault repair, much depends on the 'service' advisor's attitude.

Apple Store genius bartender went through with me what needed doing (a screen manufacture fault generating a silly pattern exactly matching a sample shown in his repair manual) and he sent the machine off. Three days later, the wonderful Ostrava (CZ) Repair Depot stated that the fault they found is different than originally specified, they reckoned user-damaged and therefore non-warranty. My choices were sending it straight back unrepaired/ pay Apple £450 UPFRONT for the repair/ discuss it with Apple support. I chose the latter - no way was Pegatron going to get away with a presumption that the customer - and indeed the genius bartender - is lying.

Adviser on webchat claimed that because the support centre is 'international' he had no access to region-based seniors for a couple of reasons that looked baloney to me. And he couldn't/ wouldn't give out contact details for me to do it myself.

Couple more days passed and the machine arrived back unrepaired anyway. Made a second webchat call to escalate this nonsense, and lo and behold: the adviser this time not only found a senior in the right place to deal with my case but he transferred my chat to him! Senior agreed that my challenge was valid and that Apple store must send it back to Pegatron with his instruction that repair is within warranty. That's now sorted, and I'm happy. But what a waste of time and what stress it caused me.

I wonder how many customers, likely out of desperation to get their only computer returned repaired ASAP, simply pay the 'ransom' rather than face the struggle and extra time taken to get such large sums properly justified or overturned?