Display Issue - Horizontal blue lines in application windows

This is the latest update from the Chromium devteam bugtracker:

https://bugs.chromium.org/p/chromium/issues/detail?id=1068170#c249

Quoted:

Comment 249 by kbr@chromium.org on Wed, Apr 21, 2021, 3:31 AM GMT+10 (6 days ago)

Apple has confirmed that they have a fix in hand and that it's being considered for a forthcoming macOS software update.

Comment 250 by mark@chromium.org on Wed, Apr 21, 2021, 4:24 AM GMT+10 (6 days ago)

Status: ExternalDependency (was: Started)

Per comment 249, ->ExternalDependency, as this is awaiting a fix from Apple.

I believe the ball is squarely in Apple's court although we won't really know for sure due to their silence on this matter.

It has been 6 days since the above was reported (not an official Apple response, just relayed by the Chromium team). Has anyone received any macOS updates recently (Catalina, Big Sur?) that you can test?

Still getting blue glitches. Especially after waking device from sleep. Same story.

Also, echoing brain_'s comment that this is not only impacting Chromium-based software. I did a list of software impacted by this further up in this thread.

As a way to flatly reject Apple's claims that we should direct our issue towards Chromium / Google, the following can be a good series of tests anyone can do when the blue glitches appear:

1. Launch Safari
2. Go to menu Develop > Show JavaScript Console
3. Select the Layers tab
4. Blue glitches will get rendered in the Layers tab

Interestingly, for some content, it appears that Safari can overcome the blue glitches. I've opened up sites such as Canvas (an LMS used by many educational institutions) glitching hard on Chromium but not on Safari. However, the above JavaScript Console > Layers tabs will always trigger the glitch – please try and report here if you can.

On top of that, this webGL demo URL will always trigger the blue glitches for me, on Chrome, Safari AND Firefox:

https://threejs.org/examples/#webgl_animation_cloth

So, even if all browsers are historically Chromium-based, it does say a lot about the fact that many applications do rely on the framework. Which could mean more are going to experience a higher recurrence of such incidents. This is only going to get worse in terms of people reporting it, right?

My line of support to Apple tracking this case has stopped replying to me. Has anyone faced this same wall of silence in your support cases?

Oh my god I thought I was the only one that experienced it as well. Tried googling but all the issues were in 2018 and something else until I finally found this thread.

I see the exact same issue as you. Blue horizontal lines only on chrome (Version 80.0.3987.163 (Official Build) (64-bit)

It shows up mostly after a night of sleep, and it appears on various sites (randomly) as well as popups, youtube video play bar ... etc

First two times, issue went away after restart. Third time issue went away randomly

My mac is also the latest 16" - refurbished

It seems like that the common denominator for this problem is Mac 2019 16 inch and the latest update. I have the same issue when using chrome and only certain apps (WhatsApp etc). Disabling Hardware acceleration helps but it's not a solution as many websites will start running sluggishly without it.

If I was to guess I think the latest update introduced some changes to the graphic card driver that don't work well with Chrome.

I noticed the same problem also appears in other applications:

Vivaldi Browser

Adobe Lightroom Classic (Develop Mode)

I did restart and reset NVRAM/PRAM but the problem presists.

==============

Specs:

2019 MacBook Pro

OS Catalina 10.15.4

2.6 GHz 6-Core Intel Core i7

16 GB 2667 MHz DDR4

AMD Radeon Pro 5300M 4 GB

Intel UHD Graphics 630 1536 MB

I'm dealing with the same issue.

I also experienced this issue in Chrome, MSTeams, Battle.net desktop app.

Disabling hardware acceleration is not a solution, since every app works way too slow and it feels like being on a cheap and old computer.

Apple, please act on this issue. We are professionals working on this machine 8 hours a day, and when these issues occurs, we lose valuable time, since we can't see any content from all the blue lines.

I have the same issue in Chrome and then Notion.

I am using an external monitor and I put my Mac to sleep overnight. Will try a couple of suggested solutions mentioned above but really hope Apple will fix this soon.

Here is my Mac info:

Still have the problem with 10.15.5. Resetting the PRAM works for a little while but something causes it to come back.

I am able to get chrome to work with the flags as have been suggested before but apps (like QuickBooks) don't have a preference like that AFAIK. Hoping this is still trying to get fixed...

Yes, I have the same issue with both Safari and Chrome on:

MacBook Pro (16-inch, 2019)

2.4 GHz 8-Core Intel Core i9

64 GB 2667 MHz DDR4

AMD Radeon Pro 5600M 8 GB

Intel UHD Graphics 630 1536 MB

The system is new, I've not monkeyed with it except to add a few apps and files since it cam out of the box. No OS settings have been changed, the graphics cards are as delivered.

It's not the display itself as it happens both on the MacBook and an attached Acer Display.

The last two times it happened I rebooted the system and this resolved the problem.

It's happened to me only after the system has been up for many days.

I wish Apple and/or AMD and/or Intel would recognise the issue, reproduce it and fix it. So annoying to have an "in yer face" problem like this on a new and expensive system from California's finest. Especially as it's been flagged and discussed by many people.

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

Hi GambsGonner,

I had the same problem with my MacBook Pro 16 with Catalina, and I still have the same issue with BigSur.

Following my configuration:

Anyway, I just solved enabling/disabling and re-enabling the "Automatic graphics switching" again, as shown below.

I hope this might help (hoping Apple is taking care of the issue as well ☺️)

Glad I'm not the only person having that issue.

I have a Macbook Pro from 2019 and I've seen this issue recently show up on a couple of websites and web apps, but can't track down the exact issue.

I suppose it has something to do with GPU and some websites being GPU-enabled or something similar. I haven't tried resetting NVRAM/PRAM yet as this only happens occasionally and usually goes away when scrolling or closing/reopening the app.

Same here, but I'll add that I've also been noticing that the computer seems to restart randomly over night too. In the morning I get messages like "This computer restarted because of a problem..." and browsers asking if I want to re-open the tabs.

At one point I was working late and the screen froze. I could still hear music and people talking on Zoom. That lasted about 1 min, then the screen had that crazy color pattern and I was kicked to the main login screen. I restarted and everything was fine again.

I did reset NVRAM/PRAM that night, and had the issue again this morning. Seems to start in the browser inspector, then eventually spreads to youtube videos, and then the whole screen. This happens in Chrome and in the new Edge for Mac.

MacBook Pro (16-inch, 2019)

Processor: 2.3 GHz 8-Core Intel Core i9

Memory: 32 GB 2667 MHz DDR4

Graphics: AMD Radeon Pro 5500M 4 GB

Intel UHD Graphics 630 1536 MB

Out of curiosity I ran the Color Sync Utility. It found these errors that it wasn't able to fix:

Searching for profiles...
Checking 60 profiles...
/Library/Application Support/Adobe/Color/Profiles/VideoPAL.icc
   Header message digest (MD5) is not correct. 
   The file is locked. Could not be fixed.
/Library/Application Support/Adobe/Color/Profiles/VideoHD.icc
   Header message digest (MD5) is not correct. 
   The file is locked. Could not be fixed.
/Library/Application Support/Adobe/Color/Profiles/VideoNTSC.icc
   Header message digest (MD5) is not correct. 
   The file is locked. Could not be fixed.
/Library/Application Support/Adobe/Color/Profiles/Recommended/image-P3.icc
   Header message digest (MD5) is not correct. 
   The file is locked. Could not be fixed.
/Library/Application Support/Adobe/Color/Profiles/JapanColor2011Coated.icc
   Tag ‘desc’: Description tag has a bad Unicode string. 
   The file is locked. Could not be fixed.
/System/Library/ColorSync/Profiles/ITU-2020.icc
   Header message digest (MD5) is not correct. 
   The file is locked. Could not be fixed.
Repair done. 0 out of 6 profiles fixed.

I hope we can find a cure for this thing. :)

Hmm, this makes me wonder if Chrome is crashing my mac? If that is the case, then Edge for Mac browser would have the same feature. Maybe there's something new about the Mac OS that is at fault? So many questions, so little Apple reps to answer them. :( Oh well. Hopefully this thing goes away. Thanks for the tip! I turned off hardware acceleration.

Having exact same issue. nvram does not help

Version: 10.15.4 (19E287)

MacBook Pro (16-inch, 2019)

2,6 GHz 6-Core Intel Core i7

16 GB 2667 MHz DDR4

AMD Radeon Pro 5300M 4 GB

Intel UHD Graphics 630 1536 MB

Hi there, glad i'm not the only one getting this as well, it happens in browsers, whatapp and even figma this is defiantly a graphics card driver issue.. Hope they get this sorted soon as opening and closing apps is getting dam annoying.