Big Sur - randomly goes screen to black.

I have been struggling with this random screen going black on my Mid-2014 MBP at least since summer 2020. Not using external monitors nor anything - I had it fixed in the previous version of Mac by turning off some kind of integrity check (don't remember exactly what I did, because, in the end, I was really desperate). Now after updating to Big sure, the same fix cannot be applied as easy and it requires a rather complex approach.

Extremely disappointed that there are no solutions and Big Sur eliminated the fix that was possible Catalina. Is there any known solution by now?

I have the same problem for weeks and last year I had it also but suddenly it solved itself. I also tried resetting everything and log in with a new user and the problem remains. Any suggestions or updates about this problem?

Also happening for me on a 2019 MacBook Pro with touchbar - randomly the screen goes black as though display is going into sleep mode, have set display to never sleep and it still happens including in the middle of inputs/interactions, have tried all the suggested steps such as resetting SMC and PRAM, etc. without change.

I have the same issue, using a Mid 2014 Retina MacBookPro. After Big Sur install, i have had random crashes for no reason. The screen just turns black and the computer shuts down. After I restart it repeats the process sometimes ten times within 30 minutes. I have updated the Big Sur to latest version 11.4 with same issues. I replaced the battery thinking it was the issue after etrecheck claimed the battery had failed. But still having same problem. I have done all the resets multiple times and even wiped my computer clean and reinstalled all OS starting with Maverick. I decided not to reinstall Big Sur but instead kept Catalina installed. Worked fine for a few days then with Catalina the computer started crashing again, so reinstalled Big Sur and still crashing. Its an annoying problem that Apple really needs to address, lost work and time dealing with this.as Im sure from the posts alot of others have too.Never hadd these issues with my MAC before.

I still have this issue on 11.4.

What seemed to work is manually lowering the refresh rate to 30Hz.

Otherwise, I get 60hz 4k but screen goes black every few seconds.

If anyone can confirm that this works for them as well, that would be great.

Same issue. New LG 32" 4k display that reports itself as a 27" in "About this Mac > Displays". I'm using the USB-C cable that came with the monitor to charging and video signal. A couple times a day the LG monitor just randomly goes black for a few seconds, then comes back on. I'm on Big Sur, and I have the Display Port version on the LG monitor set to 1.2 (it defaulted to 1.4 when it was first plugged in, but the color saturation was horrible). This was never an issue when I was using a Dell 34" ultra wide screen.

I have the new Mac mini with Apple silicon M1 and I have also have this problem a few times. The external monitor randomly goes black for a brief second. Seems to happen a few times a day.

bump - brand new macbook pro a week old - same issue after updating to big sur

This just happened to me. Apps still seem to be positioned on the external monitor. The monitor is on and receiving a signal. But the screen is black. Sweet!

Same here. A couple of times a day, or better say, a couple of times each hour. It happens for a few seconds. It started when updating to Big Sur.

Same here, only with external monitor tho. This screen goes to black, macbook screens stays on. Since Big Slur

same thing, MBP mid2014, also reproduced at macos 10.14

I updated my 2019 macbook pro to big sur and just had the random blackout problem once for about 30 seconds. It has not happened again since.

On my 2019 macbook pro I had one screen black out with big sur and it has not happened since. The battery charge seems to be lasting for a normal amount of time now. Happy with big sur so far.

Disregard - that fixed it for a solid week but now it's back. Clearly more going on here...