M1 Mac mini display issue

Guys I have same issue.

I met this pink artefacts from the box but that momenta I thought it just a SW bag but then I seen it again and again and two restart with full pink screen before it, without reason, ones when I did files copying, second just web browsing.

And I can see this pink screen when trying to turnoff Mac mini manually using a power button, always pink screen before its going off.

First time in my 15 years of experience with apple devices I can see something like this. But I'm glad what Im not alone and apple soon have to tell us some good news.

Can anyone who also using Mac mini try manually turn off machine using a power button and see if pink screen also will appear

I also reinstalled the OS, after wiping the disk. Makes no difference at all.

For me the pink squares are very random. Sometimes I don't see them for days and all of a sudden they're there again during/just after booting.

Not plugging in anything in the USB/TB ports also makes no difference at all.

Something did fail after the format of the drive, but then it prompted me to login with my Apple ID. This fixed the installation volume and I was able to freshly install Big Sur.

Sorry to hear the pink squares are back, sadly something I was expecting. My build number is also 20B50.

theres still a chance 11.1 will fix things, which should be coming soon. Here’s to hoping it comes Monday and has bug fixes for this.

One thing I’m hopeful about, I had glitchy graphics problems with my brand new model 2016 MBP. Those were fixed in an update and they haven’t happened since.

yesterday I went to the apple store and they saw this issue but they send me to the place where I bought this Mac mini. 🤬🤬🤬the most worst experience of apple devise in my life also apple support same as my experience. It’s not a display compatibility it’s a HW issue for sure because at apple store they said need change it in the place where I bought or fix it at any apple store but this device is new so need time from 7 days to 14. I activated it 6 of December. Used it with pain and issues until yesterday and they can’t change it at original apple store I’m really disappointed and of course don’t wanna wait so long because they need to test it. They need check this thread and start to react not just keep silent . First time I went in Genius Bar they found problem and seen it but don’t want to change it. It’s disgusting

If you want to return or replace it of course you need to go back to where you bought it. Of course. It wasn’t sold out of apples stock. They sold it to the retailer. Did you get apple care on it? If not yes your only viable recourse is to return it to your retailer. This isn’t evil of them. It’s just standard product channel management.

A good way for me to cause these artefacts to appear is by logging into the Safari-only Guest account on startup. Mouse movement causes the artefacts to flicker. I'm leaning towards returning this machine. It's distracting and shouldn't be happening. Apple support has no clue what to do about it, and their unwillingness to offer up any solution is putting me off Apple as a brand. Great way to lose customers. This is my first Mac, and it's left a bitter taste in my mouth. I should be enjoying the $1000 AUD machine I just shelled out for - not spending day after day troubleshooting it/wondering if at any moment the GPU is going to fail.

Wondering, have you ever only covered half screen with an app to see if they appear randomly well after boot up? My monitor is 1440p so I often only use part of the screen, I’ve noticed them occurring later on after boot

jup, white-pink flashing of the entire screen for a very short split second every 10 min or so, sound also drops, changed HDMI 2.0 cables as well as the ports on my TV no improovement, tried thunderbold to HDMI same problem and blur on 4K ! can´t be the TV other devices work fine

OK. I am done with it and returning my M1 Mac mini. After purple squares on login on my 1080p screens, hooked on a brand new Dell 4K monitor. Seems to be working fine for a few days, now I have flickering on dark areas, small lines, sometimes ghosting or weird color shifts. Monitor works fine on other machines. I tried different cables (hdmi/tb3), bought some new (8K) 0.5 meter ones. Can't trust this is a software issue anymore.

Will try again when M1x/M2 will hit the shelves.. :)

Apple reached out to me yesterday also. I returned mine though so I couldn’t provide logs, although had lots of details and pictures / videos to share.

For me (probably you as well) the mouse travels over the pink squares. I’ve also had white and gray squares, but usually those happened before the OS loaded or in recovery mode while running diagnostics or when reinstalling the OS.

Same issue with pink boxes. I reset the device and I still get pink boxes from time to time and a tiny line of dancing pixels at the top right of my display about 15% from the right most border. M1 8GB base model.

Same thing with mine. Bought it from Best Buy 3 days ago. Getting the pink squares on login after booting up. They quickly go away. I have dual monitors 27 inch dell monitors, main monitor hooked up via HDMI and the other via HDMI through usb C.

I have a one month old M1 Mac mini and I am having serious issues with the display as well. It is flashing off for a few seconds and them coming back. The computer also has rebooted on its own a few times now. It is getting worse and worse as the days go by. I have changed out the HDMI and use this monitor as a second display for a five year old iMac and my new company owned Dell laptop with no issues. Therefore, the Mac mini is the equipment which is having the problem. I am not looking forward to fighting with Apple to get this corrected. I had an iPhone 4 which started to malfunction within an hour of having the phone out of the store and I had to argue to get Apple to replace the phone.

A reminder of UK consumer law (for those in the UK): Under the Consumer Rights Act, your consumer rights may allow you to get faulty goods repaired or replaced for free up to six years after purchase, although the longer you have had the goods the progressively more difficult it will be to show the defect arose as a result of the state of the goods at time of purchase.

If this is a hardware defect then I feel more than comfortable through my interactions with the support team that I will be able to get a replacement unit and I don't expect Apple to push back against this. As it stands I'm mostly getting pink squares during login, and this isn't a problem that is causing any issues.

I once got a really odd resolution on the HDMI monitor and the whole machine wouldn't shut down, but happily this occurred when I was retrieving logs for the machine for Apple support so I sent the video and logs to them.