I am facing the same issue too. I am a new Mac user and I have my M1 MBP connected to an adaptor for my external monitor and the monitor is like glitching/disconnecting every once in a while (non-deterministic), especially when I am running MS Office (which I had to for work). This is very annoying. I had tried pretty much all the tips - scaled resolution, refresh rate, unchecking TrueTone, and even @black22 red ball.
Unfortunately none of these seems to be working :( ... happened even while typing this note.
I think I do notice is that it happens with monitor above 1080p resolution. When I use the same adaptor on a 1080p monitor, it didn't glitch a single time :O ... this pretty much renders the hires monitor useless :( :(
Should I regret switching from Windows to Mac ...hoping to get a better experience ;) ... oh btw ... I have been using (and am still using) this hires monitor with my Surface Pro with absolutely no issue at all .. so it is not a monitor problem.
Any other thoughts on how this can be fixed?
I am having the same issue MacBook pro 2018 + LG ultra fine 5K monitor. It started to happen after Big Sur Update. Currently, I installed Big Sur 11.6 but the problem still happening.
It seem to be a HDMI related issue. It only happens on the HDMI connected external display for me. In my case changing the refresh rate from 144Hz to 120Hz seem to solve the issue.
the same issue after upgrading to Big Sur, never had issues on Catalina. Quick workaround is to disconnect the monitor cable from the Dock
same problem here, 2022 January, big sur macpro 16-inch, 2019, intel core i9, one small rectangular block on the screen started to flicker, it's like a blinking shadow mark of an image previously shown on the screen
I've been looking at this on a MBP 2020 (13 inch) - the flickering is unbearable, and I want a fix for it. I tried updating MacOS but it did not work. Some report it as flexgate but that makes no sense when it appears the flickering of the backlight stops temporarily when the mouse cursor moves on screen. What I have noticed, and wanted to report on the off-chance it helps Apple figure out a fix for this issue, is that when I play videos on youtube or even via the opening "trackpad" settings (which also play videos to demonstrate the gesture controls) is that the flickering stops completely. Opening the mouse menu to setup a bluetooth mouse starts a spinning animation that appears to override whatever it is that is causing the flickering and stops it. If others can comment whether they're seeing the same results, perhaps it helps apple narrow down the cause of the bug causing this... its definitely software related my end rather than "flexgate".
I have a HyperDrive GEN2 I think and it was working in an older MacBook Pro. Got the 2019 16" one and with a thunderbolt cable the screen was flickering.
My monitor is a Samsung Odyssey G7 and changing thunderbolt version in the monitor setting from 1.4 to 1.2 did the trick.
I've been experiencing screen issues on my 2016 MBP since upgrading to Big Sur, and Monterrey did not resolve them. For me, the issue appears in the web browser, both Safari and Chrome. Not all pages cause a flicker or static, but certain sites are terrible. (I read somewhere that this might be related to javascript on the page.) After reading a lot of potential fixes for this issue, like making the cursor bigger in Accessibility and running a javascript animation in the background, I still had some web content giving me fits.
I first had luck by boosting my screen brightness to the maximum setting, but that seems unsustainable, batterywise. Poking around in Display settings, I decided to change the color profile, and I found one—SMPTE RP 431-2-2007 DCI (P3)—that made the flicker disappear completely, no matter what my brightness settings were. Then I decided to tinker with the default color profile—Color LCD—and found that adjusting the white point in Display Calibrator Assistant made a huge impact on my screen flicker levels. Some settings made it worse, some better. Find the one that works for your display and save it as a new color profile called Reduced Flicker.
**Problem solved by: @ BrooksPMA
there is a bug with the cursor size - make the cursor bigger ("Settings - Accessibility - Cursor size) - solved the problem...**