External display not turning off automatically

[gator210]

I'm running an M1 Mac Mini with an External display passing through a CalDigit dock. I use Hot Corners on the the display to put the computer into a lock screen for when I step away.

The monitor used to turn off pretty quickly on the lock screen. Now, after upgrading to OSX 15.1.1 it doesn't automatically turn off. I looked at the settings and I have it set to turn the display off when inactive for 1 minute, but it doesn't work anymore.

The hot corners still work, but is there another setting I've missed? Or something else I can check?

 

[MrT73]

I am running M4 Mac Mini with External Monitors through Wavelink Dock, and it also stopped powering off the monitors when the screen was locked. This stopped as soon as I updated to version OSX 15.1.1. I also had a look at the settings and no changes.

 

[MrT73]

I have just been through to the Senior at Mac Support, and nobody else has reported the issue. I have logged in. They want me to run it in safe mode and a fresh new user account and report back. @gator210 might be worth reporting to Apple yourself.