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  1. #1
    Old MacBook Air Clamshell Mode
    Ratsima's Avatar
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    Old MacBook Air Clamshell Mode
    I have a 2010 11" MacBook Air (10.9.5) at my condo that runs 24/7. It does some webcam software and a shell script that keeps the Internet up. I have it set to restart every 24 hours.

    In the past Iíve always left it with the lid slightly open. This has been working fine for four or five years.

    Now Iím wondering if it will keep running in clamshell mode even with no external monitor/mouse/keyboard.

    I could just try it, but I thought Iíd ask first.

    TIA


    Sent from my iPad using Mac-Forums

  2. #2
    Old MacBook Air Clamshell Mode
    pigoo3's Avatar
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    Quote Originally Posted by Ratsima View Post
    Now I’m wondering if it will keep running in clamshell mode even with no external monitor/mouse/keyboard.
    I do not believe this will work. Technically to be considered in clamshell "mode"...it needs to have an external monitor connected. If the MacBook Air's display is closed without an external monitor connected (and for the MacBook Air to detect)...it will simply go to sleep.

    But...in the past members have mentioned various apps that do things like prevent a computer from EVER going to sleep (I believe one of them was called "caffeine"). Maybe it's possible to install one of these apps...and possibly prevent an Apple portable computer from going to sleep when the display lid is closed.

    Maybe check it out...and let us know.

    HTH,

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  3. #3
    Old MacBook Air Clamshell Mode
    ferrarr's Avatar
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    I believe, if you have all the proper settings this will work.

    @pigoo3, how would the MBA know if the external display wasn’t just switched off, but a cable was connected? Especially, if the MBA was set to “never sleep”?
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  4. #4
    Old MacBook Air Clamshell Mode
    pigoo3's Avatar
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    Quote Originally Posted by ferrarr View Post
    @pigoo3, how would the MBA know if the external display wasn’t just switched off, but a cable was connected?
    There's communication between the computer & the monitor. If the external monitor were shut off (no power-on signal)...then no video signal is sent to the external monitor. And if the MacBook Air detects no power signal from the external monitor...then the MacBook Air will go to sleep as well.

    Quote Originally Posted by ferrarr View Post
    Especially, if the MBA was set to “never sleep”?
    I believe the "never sleep" setting only counts if the MacBook Air display or external display is operational. If the MacBook Air display is closed...and/or an external monitor is attached (but powered off)...then the computer will go to sleep since no display (internal or external) is operational.

    I'm sure we have lots of members that could do a test. Someone give it a shot. If I'm wrong...no problamo.

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  5. #5
    Old MacBook Air Clamshell Mode
    chscag's Avatar
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    Unless Apple has changed the way Clamshell mode works, Nick is correct. I ran my MacBook that way for years and unless the external monitor is detected the machine will sleep. Also, in order for clamshell mode to work, the machine has to be on AC power not battery.

  6. #6
    Old MacBook Air Clamshell Mode
    Ratsima's Avatar
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    The only reason I haven’t tested is because that computer keeps the Internet going. If it goes to sleep and the Internet goes down my working wife will be quite unhappy.

    I have tested with an old White MacBook. It definitely goes to sleep as soon as the cover is closed, even though it is set to never sleep.

  7. #7
    Old MacBook Air Clamshell Mode
    ferrarr's Avatar
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    It definitely goes to sleep as soon as the cover is closed, even though it is set to never sleep.
    Even with a display cable connected?
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  8. #8
    Old MacBook Air Clamshell Mode
    Ratsima's Avatar
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    I donít have one


    Sent from my iPad using Mac-Forums

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