macOS Tahoe Bug Causes Studio Display Flickering Issues

[Corefile]

How can this escape their internal testing?

 

[cjsuk]

It’s not new in Tahoe. It seems to happen when there’s HDR content on one of the screens. It’s not specific to Studio Display.

In fact, it seems to happen on iPhone too sometimes.

That's actually a good point. Some of the stuff on macOS 26 is rendered in HDR. Wonder if you can kill it.

 

[t0rqx]

According to Apple it's "within tolerance"

None of the previous phones have this and all video recording have buzz sounds because the mic is picking it up.

 

[minhrom]

Not just Apple display, my 4k 120Hz gaming monitor is flickering too

 

[dawnrazor]

I decided there was no reason for me to upgrade to Tahoe… so I didn’t and boy am I glad… at this rate I might skip it altogether…

 

[daneoni]

M4 Pro MBP + ASD = no flickering.

 

[vpndev]

Studio M1 with ASD and Dell 32". The ASD flickers but not the Dell

 

[boswald]

None of the previous phones have this and all video recording have buzz sounds because the mic is picking it up.

Do you really need to keep pushing this?

 

[mattwestside]

I have this issue with my ASD and a Mac Mini M4 Pro. I can reproduce it when a standard white background app (say Chrome) is side-by-side with the Messages app in dark mode. I downloaded the StillColor app and disabled dithering and that seems to have solved things, at least to my eyes.

 

[BSoares]

I have this issue, glad I’m not the only one, I can’t reproduce it at will so I was dreading the battle to get AppleCare to cover it when I can’t show them the moment it happens. I see it the most when quickly scrolling YouTube shorts. It flickers a few times and then stops, like it’s trying to adjust the brightness or something like that.

 

[landyn]

I’ve seen flickering occasionally with my M3 iMac over the past month and a half.

 

[sassemblyman]

I have a Studio Display and had been noticing this under Sequoia on my M4 MBA. TBH, thought it was dirty power until seeing this thread, even though no computer or monitor plugged into this same outlet has ever done the same thing.

 

[anthony13]

Two Studio Displays with a Mac Studio. No flickering.

 

[Blue Nova]

I’ve always wondered why these types posts are written in a way to make it seem like every user is experiencing the issue. Strange.

Anywho, no flicker with my Mac Mini + Studio Display on the latest macOS.

Same here, no flicker on Mac Studio M 1 and MacBook Pro M3 on Apple Studio. Running 26.2

 

[SebbsBo]

macOS Tahoe introduced a bug that causes a Studio Display connected to a Mac to flicker every so often, and subsequent updates only seem to have made the issue worse.

Mac users with the Studio Display have been complaining about intermittent flickering since the update launched in September. There are also complaints from users who have other kinds of displays, so it might be a bug that is affecting more than one type of external monitor.

We have experienced this issue with a MacBook Pro running macOS Tahoe connected to a Studio Display, and the macOS Tahoe 26.1 and macOS Tahoe 26.2 updates haven't improved the situation at all. In fact, the flickering seems to be getting worse in recent days.

Flickering happens most often when switching between apps that feature stark white backgrounds, or scrolling through webpages on light backgrounds. Any app can cause the flickering, and sometimes it just seems to be random. When flickering occurs, it's typically a brief flicker, but the display can also flicker several times in a row for a few seconds at a time. Switching from dark content to light content can almost always trigger a flicker on affected machines.

It's not clear what is causing the issue, but given that multiple Studio Display owners are experiencing it, it's likely some kind of software issue that could be addressed with new Studio Display firmware rather than a hardware problem.

Article Link: macOS Tahoe Bug Causes Studio Display Flickering Issues

I have flickering issues when the screensaver kicks in

 

[svish]

Not good to hear this. Hopefully Apple will fix this soon. Also it is always better to wait for a few days before updating considering recent software quality issues.

 

[CMMChris]

Not just Apple display, my 4k 120Hz gaming monitor is flickering too

That's likely a different bug with variable refresh rate that Apple somehow doesn't want to fix: https://forums.macrumors.com/threads/variable-refresh-rate-freesync-gsync-flicker.2320463/

 

[saberfi]

This is good to know.

I've been too lazy to update to Tahoe so far, and knowing this I'll stick to Sequoia further for the time being.

 

[danieldk]

Hah, I have seen this issue on my ASD on my MBP M5 since the update to 26.2. It hasn't bothered me much since it happens quite irregularly (it probably depends on the lighting conditions, etc.). Still hope they fix it soon.

Makes me wonder if they use the ASD themselves 😆.

 

[ErneX]

Yes M2 Ultra Mac Studio and I am still on Sequoia and it happens completely randomly on one of my displays. And get pretty bad at times, but always comes and goes. I have dual external displays and it only happens on one, so I have actually been wondering if it is the hdmi port vs usb c, but I have an 18 month old so I have not had a chance to try and fix it.

This happens with Apple Silicon Macs with many external monitors and it’s not Tahoe exclusive.

The fix I found online was to install BetterDisplay and disable GPU Dithering, I think it’s under color mode. Since I toggled that off it never occurred again.

 

[hm42]

Also: based on my experience it looks like heavier CPU load causes more flickering. Not thoroughly verified, just something I've seem to notice.