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I have a MacBook Pro, and during media presentations, my screen automatically turns off according to the settings app (which of course is operation as usual, to be expected).

I'm looking for an Applescript, setting, app, commandline command, etc. that could disable the auto screen shutoff per app rather than constantly having to change the setting globally. I've already looked for a setting within the app itself (ProPresenter, in this case) with no luck. I'm also okay if the solution bases its action on the presence or absence of a second display.

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2 Answers 2

Reset to default
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Amphetamine (which Chris mentioned in a comment) makes it trivial to automatically disable sleep whenever some app is running or frontmost. From what I see online, I'm not sure Caffeine has that feature.

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Caffeine is a small free app that can be used to temporarily override Mac settings such as sleep, screen dimming, and screen savers. The app lives in your menu dock, where you can click to turn it on (fill up the coffee cup) before your presentation, and then turn it back off (empty the coffee cup) after your presentation to set your settings back to normal.

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  • Note that this solution temporarily changes your global Mac settings until you turn it back off (at which point all settings will return to normal). This does NOT work on an app-per-app basis.
    – Chris Mukherjee
    Commented Jul 29, 2014 at 13:16
  • Awesome! At the very least I can easily change that global setting using the app. Thanks again! :]
    – Micah Yeager
    Commented Jul 31, 2014 at 11:45
  • Too bad it's only available in U.S.
    – Iulian Onofrei
    Commented May 27, 2018 at 12:54
  • @IulianOnofrei That is not true. I have done some research and it seems that the creators have pulled the app from the Apple App Store. This means that it is no longer available (in any country) via the App Store. However, you can download the program directly from the creator's website: lightheadsw.com/caffeine
    – Chris Mukherjee
    Commented May 29, 2018 at 11:27
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    Alternatively, if you prefer to download it from another source or look for alternatives (such as Amphetamine, which is available from the Apple App Store, in the US and UK at least) , simply Google "caffeine app" and browse through the results.
    – Chris Mukherjee
    Commented May 29, 2018 at 11:32

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