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photon43 Author

Level 1

4 points

Strange Color Glitching Macbook Pro 16' 2019

SO this happens quite often, not everyday, but enough to be concerning. I'm running Catalina (10.15.6), 2 external monitors through a caldigit USB-C to HDMI dock (https://www.apple.com/shop/product/HMX02ZM/A/caldigit-thunderbolt-3-mini-dock?afid=p238%7CstG6GNKNR-dc_mtid_1870765e38482_pcrid_407264219517_pgrid_85992530854_&cid=aos-us-kwgo-pla-btb-catchall--slid---product-HMX02ZM/A). But the problem happens even when I view a window on the native screen.

It usually happens after the machine has been asleep for a while - like after I wake up in the morning. And it only happens on areas with a white background. And sometimes only within certain panes of the same interface. Here's a screenshot demonstrating that:

A restart fixes it 100% of the time but I am concerned something is wrong with the video output. Can anyone speak to what is happening? Thanks!

MacBook Pro 16″, macOS 10.15

Posted on Oct 21, 2020 8:09 AM

Top-ranking reply

leroydouglas

Community+ 2024

Level 10

188,532 points

Posted on Oct 21, 2020 8:29 AM

But the problem happens even when I view a window on the native screen.

You can try running the Diagnostic/AHT http://support.apple.com/kb/HT1509

That is not what I would call a "color glitch" — that is a gfx card failure or RAM failure.

In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment

Make an appointment for a "hardware issue"—

https://www.apple.com/retail/geniusbar/

Outside the USA

https://locate.apple.com/country

From iOS device using the app to make a online Genius Bar appointment is easy:

https://itunes.apple.com/us/app/apple-support/id1130498044?mt=8

(note: due to the temporary closure of Apple Stores and the staggered reopening there may be some delays.

ref: https://www.apple.com/shop/browse/store/temporary_closures )

“Mac notebook, contact us and we'll send you a box you can use to ship it to an Apple Repair Center. We'll return your repaired product to you as quickly as possible. Depending on where you get service, you might be able to check the status of your repair online.” Start a service request https://support.apple.com/mac/repair/service

Call Customer Support (800) MY–APPLE (800–692–7753)

or on line https://getsupport.apple.com/

or call AppleCare Support at 1-800-APLCARE (800-275-2273)

Get your Mac ready for service - Apple Support https://support.apple.com/en-us/HT209095

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