At first I only noticed when invoking Adobe Camera Raw. But I also notice while looking at images on iCloud, on Safari. And every now and then I'll see it while browsing a site. Seems it's a software/hardware Studio thing, rather than a display thing.
Mac Studio, macOS 26.2
Startup the Mac Studio in Safe Mode, wait several minutes, then Restart normally and Test.
Check the cable connections at both ends, to make sure that they are tight.
Move the cable to a different port on the back of the Mac studio.
Test a new Thunderbolt 4 Pro or Thunderbolt 5 Pro cable.
Then if those things do not help..?
Contact Apple Support > https://getsupport.apple.com/
and/or your Local Apple Authorized Service Provider > Find Locations
Startup the Mac Studio in Safe Mode, wait several minutes, then Restart normally and Test.
Check the cable connections at both ends, to make sure that they are tight.
Move the cable to a different port on the back of the Mac studio.
Test a new Thunderbolt 4 Pro or Thunderbolt 5 Pro cable.
Then if those things do not help..?
Contact Apple Support > https://getsupport.apple.com/
and/or your Local Apple Authorized Service Provider > Find Locations
Are you using EXACTLY the apple-Engineered cable that shipped in the box?
Regular brand-X cables are limited to 0.5 meters maximum, unless you buy an ACTIVE Thunderbolt cable (starts at about US$125).
Using a ThunderBolt 5 cable makes no difference is the length limits, as these are not Thunderbolt 5 devices.
So...I changed the display setting to Print and Design P3-D50 preset, from the P3-600 setting. That seems to have stopped the flicker, but now I can't control the brightness. I guess it's not a cable or display issue. Slowly getting there.
Gargiulo wrote:
20 inches. But if the stock cable wasn’t adequate, it would have been an issue when I initially got it years ago. Are you saying Apple did something with their latest OS that now requires me to buy a $125 cable?
You changed the cable as a test for a BROKEN cable. If the ThunderBolt replacement was 20 inches, that is appropriately short and within the required specs. if nothing changed, the problem lies elsewhere.
No, you are not required to buy a different cable.
<< I then tried swapping it with a new cable, which did not help. >>
¿was that new cable 0.5 meters or shorter?
20 inches. But if the stock cable wasn’t adequate, it would have been an issue when I initially got it years ago. Are you saying Apple did something with their latest OS that now requires me to buy a $125 cable?
I used the cable that shipped with the studio display. I then tried swapping it with a new cable, which did not help.
Occasional "flicker" with 27" Studio Display, on an M1 Studio Mac
