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Thread: Sleep Deprivation

  1. #1
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    Sleep Deprivation

    Mike - My setup is working fine in all respects except one - when the engine is turned off the Mac Mini is switched off after a minute or so rather than going to sleep. When I switch the ignition on again the Mini automatically switches on and boots up indicating that the iSense works okay.

    The Jumpers are all set okay, I have ticked "Allow power button to sleep computer" I am using the MacPac, P2140 and an Intel Mac Mini.

    Can you outline the steps I need to take to troubleshoot the sleeping function?

  2. #2
    Administrator carnetix_mikeh's Avatar
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    Can you outline the steps I need to take to troubleshoot the sleeping function?
    1) Borrow a PC laptop.
    2) Install PSUmoni on the laptop
    3) Connect the laptop to the P2140
    4) Watch the PSUmoni indicators while you Mac is mis-behaving...

    Seriously, we can guess, speculate, and tweak for hours, but the PSUmoni will tell us in seconds what is going on. My guess is that your low battery threshold is set too low.

    BTW... I just noticed your post topic..... very clever!

  3. #3
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    Quote Originally Posted by mikeh
    1) Borrow a PC laptop.
    2) Install PSUmoni on the laptop
    3) Connect the laptop to the P2140
    4) Watch the PSUmoni indicators while you Mac is mis-behaving...

    Seriously, we can guess, speculate, and tweak for hours, but the PSUmoni will tell us in seconds what is going on. My guess is that your low battery threshold is set too low.
    Cool Mike that makes sense. I've borrowed a laptop for tomorrow morning and so will install PSUmoni on it then.

    I will be travelling early tomorrow so I am guessing you won't be around to answer specifics. Could you just give me a few pointers what to look for in PSUmoni. e.g what would be a sensible level to set the Low Battery Level at etc. Or anything else to look for that in your experience can cause a shutdown rather than sleep in the Mini.


    Quote Originally Posted by mikeh
    BTW... I just noticed your post topic..... very clever!
    Since you designed the little marvel that is the P2140 I'd have to say that you're pretty clever too!

  4. #4
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    Mike - any chance you could document what the parameters mean in the PSUMoni application. Also any guidance on recommended settings would be good.

  5. #5
    Administrator carnetix_mikeh's Avatar
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    any chance you could document what the parameters mean in the PSUMoni application
    Which parameters? Have you looked at the PSUmoni video on our support page?
    http://www.carnetix.com/PSUmoni/PSUm...SUmoni2140.htm
    Also any guidance on recommended settings would be good.
    The default settings should work for most applications. Just hit the "reset" button on the main PSUmoni screen to reset all sliders and settings to the default setting.

  6. #6
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    Hi Mike,

    For some reason those videos play with sound but no video on Macs. What Codec are they using?

    The reason I am looking for some guidance on parameters is that I cannot get my Intel Mac Mini to enter sleep mode using the P2140. If you look on the MP3Car forums a number of people are having the same problem.

    I am trying to troubleshoot the issue and figured changing some of the parameters in the P2140 may help. The trouble is the default settings mean that the Mini is switched off not put to sleep and I can't find any documentation on the parameters that PSUMoni allows you to change.

  7. #7
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    Quote Originally Posted by joesan
    For some reason those videos play with sound but no video on Macs.
    Yup, same here.

    What Codec are they using?
    QuickTime says "MSS2". Frankly I don't know what kind of M$-proprietary cr** it is, but self-evidently some. As if there was not lots of perfectly standard codecs :???:

    The reason I am looking for some guidance on parameters is that I cannot get my Intel Mac Mini to enter sleep mode using the P2140.
    Through ACPI, or in some other way? If the former, I can't see any other reason than ACPI too long.

    Guess you perhaps could consider upgrading your firmware: have you tried the "version" command? Anyroad, the 15-byte config packet I've received strongly smells by some old firmware, namely, one which does not allow you to set the ACPI duration.

    (added)
    Also... if the contents of the packet can be interpreted the same way as the newer (?) 21-byte one would be (and mind please that I do not know it's so), then there are three highly suspicious settings in your PSU:

    - zero DLYON
    - three second boot lockout
    - four second shutdown lockout.

    Assumed P2140 has the same "immediate" overcurrent protection which was brought to P1900 in 2.8 (and again, I do not know that, just guessing), it is possible that in the four seconds Mac perhaps does not get asleep fully -- and the overcurrent protection kills it. Again, note, this is just a wild guess based on quite incomplete data, but perhaps worth checking

    I am trying to troubleshoot the issue and figured changing some of the parameters in the P2140 may help. The trouble is the default settings mean that the Mini is switched off not put to sleep and I can't find any documentation on the parameters that PSUMoni allows you to change.
    Well they(*) are documented comparatively well in Steve's API (and consequently they can easily be in my Mac PSUmoni).

    (*) not necessarily all of them, of course

  8. #8
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    Thanks OCS. Very useful.

    Mike could you add some input as regards the above.

    OCS is writing, and I am beta-testing, a OS X port of the PSUMoni app mentioned elsewhere in these forums. He is designing a nice GUI on top of the interrogation app that will be a great benefit to Carnetix users who only use Macs and yet would like to make the most utility of the P2140.

    Could you outline a troubleshooting approach to solve the "no-sleep" issue. I'm sure it will be of benefit to many other users.

  9. #9
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    Just a quick note -- there's more technical information and also a link to download the alpha (I would not flatter the thing by calling it a "beta" in the current stage ) in this thread.

    (Joe, you don't need to download this, it's the 1.1a I've sent you the day before yesterday -- there's no point in publishing new releases till I know how (or whether at all) this one works )

  10. #10
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    Quote Originally Posted by joesan
    Could you outline a troubleshooting approach to solve the "no-sleep" issue
    Well, first thing you need to know the settings (namely, shutdown delay, shutdown lockout duration, ACPI duration, ACPI delay; also the soft-jumper setting) of your PSU.

    As for howto, see the linked thread and also my last mail

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