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Thread: Shutting Down the Mac Mini

  1. #11
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    Bugbyte's Avatar
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    See post 8. BTW I saw your Mini in Macworld. Cool!
    Quote Originally Posted by ghettocruzer View Post
    I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
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  2. #12
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    No problems at all here. I wouldn't do it any other way. I was a doubter but am no longer.

  3. #13
    Mac Car Moderator kandyman676's Avatar
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    Actually, Mac OS 10.3.3 and onward have had UPS software integrated into the operating system:-)

    You can read up here for the evidence:
    - 10.3.3 update under "Other enhancements"
    A UPS (Uninterruptible Power Supply) panel is available in Energy Saver preferences, as well as a UPS menu bar item, when a UPS power management system is connected to the computer. Overall support for UPS systems is improved.

    http://docs.info.apple.com/article.html?artnum=25711
    And see screenshots here:
    http://www.xvsxp.com/power/

    From what I have googled, i believe this is its location on Mac OS X 10.3 / 10.4 (my Mac is at work..):

    /usr/libexec/upsshutdown

    If you are ultra anal and wish to montior your UPS, then there is this software available:
    http://www.dragonsoftware.co.uk/sleepmonitor/index.html

    Now we just have to figure out how to trick OS X in thinking the P1900 is a UPS somehow:-)
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  4. #14
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    I just decided to scrap my mini-itx plans (anyone want to buy a travla c134/epia-m?) and im going with my mac mini. I love my mac, and i cant turn back. ive already started writing my python app to interact with the steering wheel of my bmw. i have been reading up on the power/sleep conversation, and i think i have something to throw into the mix. there is an app called sleepwatcher, which can do some amazing things (run a script on sleep, scheduled wake from sleep, etc).
    i will test it when i get a chance, but here is the link:
    http://www.bernhard-baehr.de/

  5. #15
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    Looks promising! Don't have time to check it out tonight but I'll take a look when I get a chance.
    Quote Originally Posted by ghettocruzer View Post
    I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
    Want to:
    -Find out about the new iBug iPad install?
    -Find out about carPC's in just 5 minutes? View the Car PC 101 video

  6. #16
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    Well, I finally got a chance to play with Sleepwatcher, and it looks like we have a solution. If you want the "Sleep" function on your computer to actually shut down your computer, this is the command you must run as root.
    root# /usr/local/sbin/sleepwatcher -s "shutdown -h now"
    (you can add the -d to make it run as a daemon)
    So, if you have the daemon running, and the power button is pressed on your mac mini for sleep, your computer will shutdown entirely.
    While I am sure this will help out a couple people, i plan on going with true sleep all the time, as i got an optima yellowtop just for my mini
    i am just dying for my P1900 to arrive....
    how's everyone else doing with power and their p1900s?
    any advice for an upcoming install?
    thanks.

  7. #17
    QCar Creator Jirka Jirout's Avatar
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    Quote Originally Posted by avidan
    how's everyone else doing with power and their p1900s?
    any advice for an upcoming install?
    No problems whatsoever. I am using a P1900 with the extral 5V module. The secondary output is jumpered to +12V to power the LCD (and some extra circuits I have), the 5V is used for USB hubs.
    I experimented with pulse start up and shutdown controlled by first the car alarm and then by my GSM/GPS/IO box, but sometimes (ie opened the car with a key instead of remote), this caused the P1900 to get out of sync. Now I use the IGN line of P1900. The GB060 box sets it to +12V when I log in using the chip key-card and then to 0V when I log out. This also allows me to disable the whole thing without having to install a valet switch when I put my car for service, as the service key-card is programmed to only allow the most basic car functions.

  8. #18
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    Well, I finally got a chance to play with Sleepwatcher, and it looks like we have a solution
    Avidan...Great! This is very good news! Thanks for the efforts!

    Jirka....excellent work! Very nice setup.
    MikeH

  9. #19
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    did you actually test the sleepwatcher solution? it doesnt seem to work for me as the system sleeps before it can issue the shutdown commands. then upon pressing the button again, it wakes and immediately shuts down

  10. #20
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    I tested it and it worked, but it appears there is a caveat. If you computer is unable to shutdown within 15 seconds, the mini goes into sleep forcefully, and wont wait for the shutdown to finish. Try doing this with no apps open except for terminal. It worked for me, and i think now we need to massage the solution...
    has anyone else given it a try?

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