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  1. CEPHtmlEngine keeps macOS awake

    7 votes

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    6 comments  ·  Illustrator (Desktop) Bugs » Performance  ·  Admin →
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    James supported this idea  · 

  2. Illustrator prevents Mac display from sleeping due to inactivity

    8 votes

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    4 comments  ·  Illustrator (Desktop) Bugs » Other...  ·  Admin →
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    James commented  · 

    This is still real on Sequoia. I did some investigation and found some interesting tidbits. When I used the shell command `pmset -g` this line was in the output:
    displaysleep 5 (display sleep prevented by CEPHtmlEngine)
    Some poking at the process table pointed a finger at:
    /Applications/Adobe Illustrator 2025/Adobe Illustrator.app/Contents/MacOS/CEPHtmlEngine/CEPHtmlEngine.app/Contents/Frameworks/CEPHtmlEngine Helper (GPU).app
    I killed all of the (many!) processes running this and the display sleep block had gone away. I didn't need to shut down the main process.

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