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Thread: does anyone know how to put android into hibernate instead of shutdown

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    Constant Bitrate Morpheus2010's Avatar
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    does anyone know how to put android into hibernate instead of shutdown

    Hello I was wondering if any app does hibernation (as in windows)? meaning when I turn off my phone it goes into a deep sleep/hibernation, then when I power it back on, it returns to the state in was in prior to shutdown. Just as in any windows computer. If you know any app or something that can do this please let me know.
    P.s. I'm installing android 4.4.2(KitKat) on my carpc so rather than it shutting down every time I turn off the car I would like it to just go into hibernation.

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    _Dejan_'s Avatar
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    Im not shure if this is possible, because android is not designed to work like this... You can turn screen off and if there is not any app/service which request wake up CPU to do some work, then it will go to sleep mode and consume less power... You can maybe find some app which if you turn off screen for more than few hours it make shutdown...
    So for example you turn off ignition and carpc send shutdown request to android OS, you handle this request and prevent shutdown and just turn off screen, if you for exxample do not turn on ignition in 8h then you(app) request shutdown ... So like this you when you go to store or something like that you only sleep/resume ... But im not shure if you need to do this rooted device...

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    Maximum Bitrate RAWPWR's Avatar
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    Thumbs up

    I don't know about hibernating android, but I do use an app called "Autosleeper" by supercoders.org from the Google play store.
    Works excellent. I set my timer to 12 sec.
    Give this a whirl.

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    Variable Bitrate eugenweij's Avatar
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    I use a galaxy tab 3 7 inch with Digital Car..

    I have tasker set up to kill wifi, bt and gps (need root for the gps) when it detects no charger coming in , it also sets the screen timeout to 7 sec.

    IT will also check if sygic and torque are running and kill those apps.

    The only thing that keeps running is Digital Car.

    I also checked the energy saving mode, but I am not sure every android device has this feature.

    When it detects the charger agian it will enable wifi, bt and gps and turn on the screen, DC already has a function to keep the screen alive when charger is connected.

    This setup makes battery drop from 100 to 99% in 5 days (longest I havent used the car with this setup)

    disadvantage is that tasker isn't the easiest app to setup but its by far the most powerful and versatile.



    edit: forgot to mention, if you want to use commands that need root you will need the secure settings addon for tasker
    Last edited by eugenweij; 02-08-2015 at 07:31 AM.
    View my worklog here

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    Constant Bitrate Morpheus2010's Avatar
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    First off guys thanks for the quick replies. Well here is exactly what happened. I got my Inelmatic 10.4" raw panel screen ready to install. My fabricator had already made the bezel for it to install in portrait mode. As he was doing some cutting in the car to get more room so my eq could move above the new screen, the screen glass cracked from the vibration/pressure. Yeah I know,at that point I just looked up at the sky and took and very very deep breath and walked away. After I calmed down, he apologized over and over and said he would do all the fabrication for free (which includes moving my ac&eq,fiber glassing and painting) so the tablet could fit. So with this I saw a silver lining rather than send the screen back to japan for a fix @ Inelmatic,just buy a 10" android tablet that fits in the same bezel. That way I don't have to worry about all the USB sensors I was dealing with before with my PC(GPS,Bluetooth, keyboard etc etc) so guys who have already switched over I need your help once again.
    1. I need a way to hook up two USB cords(external HD & thumb drive) to the tablet
    2. Power management: do I just wire the tablet straight to my cigerete lighter wiring (mine turns on and off with car ignition)
    3. So can I use auto sleeper to shut off and auto start the tablet when I start/shut off the car and it keeps the state I was in?
    4. Do tablets work well even in hot/cold conditions or do I have to take it out the car everytime like some people do?
    P.s. I'm looking at the samsung tab s 10.5, if anyone knows where I can get it the cheapest please let me know. Im picking the 10.5 since its close to the size of the monitor I had.
    Last edited by Morpheus2010; 02-08-2015 at 07:58 AM.

  6. #6
    Variable Bitrate eugenweij's Avatar
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    the temperature thing depends on your local weather conditions, I couldn't take an educated guess on it right now.
    power management, I tried autosleeper, I hated it but your free to try it out (preferably before you do the install, makes life a lot easier)
    about hooking up 2 usb items , I did a quick search on ebay for a tab s usb hub and found one within 2 minutes ebay objectnr: 390870919417

    Do note that having a hub will not allow you to charge your tablet at the same time
    View my worklog here

  7. #7
    Constant Bitrate Morpheus2010's Avatar
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    Actually i found a simultaneously charge hub.Simultaneous USB Host & Charge for Galaxy Tab 4, Tab S - LAVA TL-002: http://youtu.be/4Ap98Kf6Sis
    Last edited by Morpheus2010; 02-08-2015 at 11:21 AM.

  8. #8
    Variable Bitrate eugenweij's Avatar
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    thats sweet
    View my worklog here

  9. #9
    Constant Bitrate Morpheus2010's Avatar
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    so now i only have two questions remaining
    1. Power management: do I just wire the tablet straight to my cigarette lighter wiring (mine turns on and off with car ignition)
    2. So can I use auto sleeper to shut off and auto start the tablet when I start/shut off the car and it keeps the state I was in?

  10. #10
    Variable Bitrate eugenweij's Avatar
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    for power management: yes you can wire your tablet straight to your cigarette lighter since yours turns off when ignition turns off.

    autosleeper provides a basic sleepstate for your tablet, it will go to sleep but keep all wireless connections alive, so don't expect wonders for you batterylife

    I tried it but it didn't provide advanced enough options for my taste.

    As for software , the best way is trial and error to figure out what software you like and don't like , I therefore recommend you install all apps and test them before you permanently install it in your car.
    View my worklog here

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