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  1. #1
    New Lounger
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    Laptop capable of booting itself after power failure

    Does anyone make a laptop with a bios / ACPI that could boot itself after a mains failure, when power is restored? I want to run a pc hosting Ubiquiti mFi. this is monitoring my house temperature. I need to be able to access this from anywhere in the world. It's working fine but I know that a power failure will cause my laptop to sleep or hibernate and then it won't start up again. I don't really want a desktop plus monitor.

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    Why not add an UPS that, coupled with the laptop's battery, will give you a reasonable amount of time of endurance to a power failure that doesn't last too long?
    Rui
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  3. #3
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    Quote Originally Posted by ruirib View Post
    Why not add an UPS that, coupled with the laptop's battery, will give you a reasonable amount of time of endurance to a power failure that doesn't last too long?
    Because I want to connect to my laptop after a power cut of 12 hours and no UPS (for reasonable money) will give me that.

    Martin

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    Super Moderator RetiredGeek's Avatar
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    Martin,

    Take a look at the task scheduler. You may be able to create a task to run a simple batch file that doesn't do much but will be enough to wake the computer by using the Conditions tab of the task scheduler. I assume from your post that the computer is hooked up to the internet so a combination of the two highlighted conditions may be able to solve your problem. HTH
    wakeup.JPG
    May the Forces of good computing be with you!

    RG

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  5. The Following 2 Users Say Thank You to RetiredGeek For This Useful Post:

    mross (2013-11-25),ruirib (2013-11-24)

  6. #5
    New Lounger
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    Great suggestion, thank you. I will try that, but I'm really looking for a totally robust system that does not rely on my laptop's battery holding out. (like me, it's no spring chicken!)

    Martin

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    Quote Originally Posted by RetiredGeek View Post
    Martin,

    Take a look at the task scheduler. You may be able to create a task to run a simple batch file that doesn't do much but will be enough to wake the computer by using the Conditions tab of the task scheduler. I assume from your post that the computer is hooked up to the internet so a combination of the two highlighted conditions may be able to solve your problem. HTH
    wakeup.JPG
    That's an excellent idea .
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  8. #7
    New Lounger
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    Will task scheduler wake from hibernation, or only from sleep?

    Thanks, Martrin

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    It should be able to wake from hibernation, but you need to make sure the advanced power settings are configured to allow wake timers.
    Rui
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  11. #9
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    It seems to work well from sleep; I have enabled timers. I will try it from hibernate after I have checked if the program I need recovers 100% from sleep. I'm not sure how Mongod will behave. It only needs a single dialog box to open and I won't be there to click 'OK' or whatever.

    I'll let you know how I get on. Thanks!
    Last edited by mross; 2013-11-24 at 11:31. Reason: punctuation - a courtesy to readers!

  12. #10
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    My bat file contains only 'CLS' if anyone else is following this. In a command prompt it clears the screen. When the bat file is run a small window opens and immediately closes.

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    Is that mongod as in MongoDB?
    Rui
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    Yes!

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    Weird that a database daemon requires a dialog prompt.
    Rui
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  16. #14
    New Lounger
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    I know nothing about daemons! The laptop running Mongo is due to wake in ten minutes and then I'll know if the program, mFi Controller, starts up OK. I will advise.

  17. #15
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    BINGO!

    The application has woken with no issues. I'm now going to experiment with Wake on Lan. Thanks for all your help. Let me know if you want info on the temp logging. My house will be empty this winter and I want to know that the central heating is working - it will be on a low setting to prevent any pipes freezing.

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