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Illustrator Preventing Sleep on Mac

New Here ,
Aug 15, 2024 Aug 15, 2024

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I'm running a Mac Mini with an M2 chip on Sonoma 14.6.1. Within the past few weeks, my Mac has stopped sleeping on it's own. I can make it sleep manually, but it wakes back up on it's own. If I simply walk away from my desk without doing anything, it never sleeps.
 
I saw previous threads about turning off all automatic syncing, updates, not allowing CC to start on start-up and have done all of that. In Illustrator, I don't save to the cloud and have the option to do so automatically unchecked.
 
When I look at the Activity Monitor, it shows Illustrator as the only App name with "Preventing Sleep" marked Yes. Opening the toggle for this item shows it's the CEPHtmlEngine item.
 
Does anyone have any new ideas for fixing this? Being that this has been an open issues in other threads for over 2 years, I'm not getting my hopes up. If I can't get this figured out it's honestly going to be the final straw of moving to Affinity. I'm tired of paying this much money for software that crashes all the time and prevents my computer from operating properly, all while insisting it babysit me constantly.

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correct answers 1 Correct answer

New Here , Oct 03, 2024 Oct 03, 2024

This solved the issue for me:

I have been having this issue on my MacBook pro 2019 16" for the last couple of months. On my activity monitor it said that it was Adobe Illustrator and Spotify which were preventing my Mac from sleeping. I uninstalled both of those apps, making sure to clear the caches first. Then I reset SMC on my mac and then turned my mac back on and reinstalled those apps. Now my activity monitor is saying they are no longer preventing sleep. AND MY MAC GOES TO SLEEP 😄 even wit

...

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Adobe
Community Expert ,
Aug 15, 2024 Aug 15, 2024

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This appears to be a Mac Mini issue. These two thread https://discussions.apple.com/thread/254936255?sortBy=rank and https://discussions.apple.com/thread/254541465?sortBy=rank point out that later Macs do not benefit from being put into sleep mode. According to these threads trying to solve the sleep problem such as you're having isn't worth the effort.

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Explorer ,
Aug 19, 2024 Aug 19, 2024

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No, it's not just Mac mini issue. I have same problem with 2019 Intel iMac. iMac display is constantly on while running Illustrator.

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Community Expert ,
Aug 19, 2024 Aug 19, 2024

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I still have an Intel Mac mini. Sleep is not an issue at all with Illustrator running on it. But I do not have Sonoma on it.

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New Here ,
Aug 19, 2024 Aug 19, 2024

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The benefit would be that my monitor is not on constantly.

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Community Beginner ,
Sep 04, 2024 Sep 04, 2024

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I had the same problem. I found that going to AI settings and unchecking 

(Automatically Save Recovery Data Every) solved the issue. Hope that helps you as well. 

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Community Beginner ,
Sep 05, 2024 Sep 05, 2024

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Thanks, but then if it crushes and you did not save your screwd, no? 

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Community Expert ,
Sep 05, 2024 Sep 05, 2024

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Remember to save regularly. That is something you need to do anyway.

Also: Do not just save, but save different versions of a file. Because if there is a power outage while you are saving, you are still in trouble.

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Community Beginner ,
Sep 05, 2024 Sep 05, 2024

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This is a temporary fix until Adobe or Apple fixes whatevever caused the issue. The problem only started for me recenlty. Saving files is not an issue for me personally as I am in the habit of clicking 'command S' every few moves. For me it is worth the risk to allow my coumputer to sleep and lock when I walk away from my desk without manually putting it to sleep. 

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Community Expert ,
Sep 05, 2024 Sep 05, 2024

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I would not leave a file open if I walk away for a longer period of time.

And that applies to all files, not just Illustrator.

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New Here ,
Nov 25, 2024 Nov 25, 2024

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You don't need to turn it off just change the interval time to one that is longer than your sleep setting.  I tried it and it works.  

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New Here ,
Oct 03, 2024 Oct 03, 2024

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This solved the issue for me:

I have been having this issue on my MacBook pro 2019 16" for the last couple of months. On my activity monitor it said that it was Adobe Illustrator and Spotify which were preventing my Mac from sleeping. I uninstalled both of those apps, making sure to clear the caches first. Then I reset SMC on my mac and then turned my mac back on and reinstalled those apps. Now my activity monitor is saying they are no longer preventing sleep. AND MY MAC GOES TO SLEEP 😄 even with both apps open!

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Explorer ,
Oct 04, 2024 Oct 04, 2024

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This might be temporary solution only. Root of the problem is CEPHtmlEngine process which is used to sync online Library panel. 

There are few solutions:

  • Kill the CEPHtmlEngine process in Activity monitor
  • If you don't use Library panel you can disable it Preferences > Plugins, disallow plugins to use internet and restart Photoshop. You can also disable loading of extensions panels.
  • Make new Workspace without Library panel and save it.

 

It should do the trick. Culprit of the problem is in fact the Library panel which is legacy extension.

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New Here ,
Dec 10, 2024 Dec 10, 2024

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I did an complete uninstall, reset and reinsatll like you said. it was okay for about 1 week. Now my MAC wont go to sleep again of CEPHtmlEngine.

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New Here ,
Nov 13, 2024 Nov 13, 2024

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I had the same issue and am working on a 2021 M1 Mac with Sonoma OS 14.6. I also found that this issue gets resolved if you're in Illustrator and change the File Handling settings in the preferences window. I increased the "Automatically Save Recovery Data Every:" section to every 15 minutes and similarly increased "Automatically Save Cloud Documents Every:" to 5 minutes.

 

Double-checking both your "Battery" section if working on a MacBook and the "Lock Screen" section may be necessary to ensure those numbers are appropriate for when you want the computer to sleep. Both of these sections are located in your system settings app. Hope that helps anyone in need!

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