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Old Aug 6th, 2019, 11:33 AM   #1
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iMac does not turn display off when I log out

OK, I am not sure if my memory serves me correctly, but wasn't it that when you log out of your mac, the display goes off to sleep after a while, and any key (spacebar) will turn the display back on?

My iMac never turns the display off, it constantly keeps displaying the login screen, even hours after I log off.

I am not sure if this is expected behaviour or if my iMac is misbehaving.

I tried to look at settings, but that only seems to deal with going to sleep when I am logged in, not after I am logged out.

Cheers
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Old Aug 6th, 2019, 12:16 PM   #2
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Hi Tilt! Seems to me that the default is for the screen to go dark when not in use after a set period of time.
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Old Aug 6th, 2019, 01:20 PM   #3
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it should go to sleep when logged out, no way you want to be running a static screen for long periods. What version of MacOS are you running? Did you check to see if there are any updates? Sometimes if it is a glitch in the OS a simple update will fix it.
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Old Aug 6th, 2019, 01:27 PM   #4
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What's the setting under System Preferences --> Energy Saver. for "Turn display off after...." ?
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Old Aug 7th, 2019, 12:21 AM   #5
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Thank you all for the quick response Answers below:

Quote:
Originally Posted by Freddie_Biff View Post
Hi Tilt! Seems to me that the default is for the screen to go dark when not in use after a set period of time.
Yes, that's what I thought, but the iMac does not seem to be doing it.

Quote:
Originally Posted by wonderings View Post
it should go to sleep when logged out, no way you want to be running a static screen for long periods. What version of MacOS are you running? Did you check to see if there are any updates? Sometimes if it is a glitch in the OS a simple update will fix it.
I am running Mojave 10.14.6 and there are no updates. And I remember, this problem has been happening for a while now, and there have been more than one update done in the interim.

Quote:
Originally Posted by CubaMark View Post
What's the setting under System Preferences --> Energy Saver. for "Turn display off after...." ?
15 mins. However, I thought that should affect the display when I am logged in, not when I am logged out?

Cheers
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Old Aug 7th, 2019, 04:36 AM   #6
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Quote:
Originally Posted by TiltAgain View Post
15 mins. However, I thought that should affect the display when I am logged in, not when I am logged out?

Cheers
I thought they applied globally, but I'll experiment later today. However you could try giving the SMC a good ol' reset. (https://support.apple.com/en-ca/HT201295 in case you need it.)
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Old Aug 7th, 2019, 12:39 PM   #7
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You could contact Apple, they have chat support and have found them to be pretty good.
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Old Aug 7th, 2019, 01:40 PM   #8
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Quote:
My iMac never turns the display off, it constantly keeps displaying the login screen, even hours after I log off.

My 2011 27" iMac running Mavericks OS 10.9.5 does exactly the same thing and always has but I think that may also be because I have multiple users.

I'm not sure, but I think it may actually shut off or go to sleep if one does not have any second user or even guest access allowed when one logs out.

But maybe tou mean to lock your Mac which I believe will turn off your screen and basically log you out as well rather than just logging out.

Have a look here for the various options. (and no you don't really need their utility software which is also quite expensive.)
https://macpaw.com/how-to/lock-mac-screen


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Old Aug 8th, 2019, 01:52 AM   #9
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Quote:
Originally Posted by polywog View Post
I thought they applied globally, but I'll experiment later today. However you could try giving the SMC a good ol' reset. (https://support.apple.com/en-ca/HT201295 in case you need it.)
Shall try SMC/PRAM reset - have not done that, my mistake. Thank you!

Quote:
Originally Posted by wonderings View Post
You could contact Apple, they have chat support and have found them to be pretty good.
Yes I usually do that But I thought I shall ask here first

Quote:
Originally Posted by pm-r View Post
My 2011 27" iMac running Mavericks OS 10.9.5 does exactly the same thing and always has but I think that may also be because I have multiple users.

I'm not sure, but I think it may actually shut off or go to sleep if one does not have any second user or even guest access allowed when one logs out.

But maybe tou mean to lock your Mac which I believe will turn off your screen and basically log you out as well rather than just logging out.

Have a look here for the various options. (and no you don't really need their utility software which is also quite expensive.)
https://macpaw.com/how-to/lock-mac-screen


- Patrick
======
Yes I do have multiple users (my wife, me and the Guest user is enabled); but that has been the case since I bought the mac in 2013; and it has worked fine until just now.

No, I am not talking about locking the mac, I am merely talking about the screen blanking when idle for a while after explicitly logging out.

Cheers
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Old Aug 8th, 2019, 11:45 AM   #10
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Tilt,
I came across this article which may be of some help even though it may not explain exactly what you want:
Should I Log Out on my Mac or Shut Down?
https://www.macworld.co.uk/how-to/ma...-down-3623615/

And then there was this:
Configuring Your Login Screen in Mac OS X
And this comment was interesting:
Quote:
To specify which type of login screen you see — if you see one at all — head to System Preferences, click Accounts, and then click the Login Options button.
https://www.dummies.com/computers/ma...n-in-mac-os-x/

So it seems there MAY be a login screen or maybe not when logging out. Clear as mud,

Maybe double check yout Uers pref pane and the login options settings.

Or try Sleep instead of Logout. The screen sure goes black using the sleep method!!! ;-)

Sorry, but I cannot find a definitive answer for you. But I am sure the Mac OS used to kill the screen completely when logging out.

BTW:
Ctrl+Shift+Eject will turn off the display(s) but leave the computer active.



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