https://rog-forum.asus.com/t5/gaming-monitors/asus-pg27aqdm-firmware-update-mcm104-causing-screen-sa...
This problem continues. Mcm103 does not have this problem. After mcm103, 104,105,106,107 have this problem.
”Basically (under firmware MCM103) the Screen Saver option only dims the screen when a large part of the screen was static for too long. Since the MCM104 update it still have the same function as before but in addition it adds a permanent vignette effect which dims a bit the edges of the screen as soon as it is activated. I don't know if it's a bug or additional burn-in/image retention security though.”
