Apple Studio Display - Owners Thread

[macOScurious]

Interestingly, in the EU (240V) the power draw figures are different:
21.2W for SDR power draw, and 0.5W for standby.

https://cdn.cs.1worldsync.com/af/59/af595dfe-b840-458f-80ad-73c875fd08a6.pdf

Yes, depending where you look it up there may be some small difference. But it doesn't matter if 0,3 or 0,5
https://eprel.ec.europa.eu/screen/product/electronicdisplays/1053323?navigatingfrom=qr


Here is what Apple is telling the user:

https://www.apple.com/environment/pdf/products/displays/Apple_Studio_Display_PER_March2022.pdf

• Standby (Sleep): Low power state that is entered after the display receives instructions from a connected host

computer set to off/sleep. This mode is characterized by a blank screen.

Edit: Also I can confirm my ASD is using 21,5 Watt right now while posting this. EU

 

[jabbr]

in standby my fans sometimes run and sometimes not, I haven't been able to find a pattern.

 

[C0re0]

in standby my fans sometimes run and sometimes not, I haven't been able to find a pattern.

Yes, this is also my observation...
So far, the ASD fans do not run when my Macbook is shut off.

Yesterday, I did shut down my Macbook and left it shutdown until the evening next day.
After booting, the display went on and the fans began to run (ok, normal).
Btw, the battery charge of my Macbook did not change; so it might be that the Macbook was still powered via the thudnerbolt cable despite the ASD was off.

 

[macOScurious]

in standby my fans sometimes run and sometimes not, I haven't been able to find a pattern.

Thanks for your input. It would be important to let us know what kind of setup you are using,, including the OS,

If you have the fans of the ASD going on and off during Mac and ASD are in sleep mode this would be the behavior with a Mac mini (not sure about a Macbook) before macOS 15.4

The ASD fans jump in during the Mac is doing some background tasks, that’s a couple of times and minutes per hour, sometimes longer, sometimes short. But the fans should stop after the background work is done.

How do I know that? Right from the start using my ASD with my Mac mini I’m using two smart plugs, able to tell me the power draw in an app. So I can see if the Mac mini is using a little more power while switching from sleep to background task back and forth.

 

[jabbr]

I’m using 2021 14” MBP. An RME audio interface is connected through a USB port on the ASD. The interface retains bus power from the ASD when the MacBook is undocked, and the display fans are currently not running.

I wonder how much ambient temperature is a factor? It’s starting to get pretty cold here!

 

[macOScurious]

I’m using 2021 14” MBP. An RME audio interface is connected through a USB port on the ASD. The interface retains bus power from the ASD when the MacBook is undocked, and the display fans are currently not running.

I wonder how much ambient temperature is a factor? It’s starting to get pretty cold here!

... did I get this right? You are using the display (it's on), but the ASD fans are NOT running?
It's complicated to compare Mac mini and MacBook to figure out the bug I'm talking about. What would be important is, if ASD fans keep running or not during an over night sleep mode.

 

[jabbr]

@macOScurious the fans have always been on while using the computer, at least as far as I've ever noticed. Upon unplugging the Mac the fans usually stop. Sometimes the fans will stop while the MacBook sleeps, but this is rare. I wish they reliably went off during sleep; feels like a waste of energy / fan lifespan.