Previous 1 2 3 4 5 6 Next 277 Replies Latest reply: Oct 10, 2007 12:04 PM by David Monteath Go to original post
  • Solair Level 1 Level 1 (20 points)
    The PMU reset solved my problem too.

    It's very easy:

    1) Unplug your power adaptor from the MacBook Pro (i.e. unplug the magsafe connector from the side of your computer)
    2) Shut down
    3) Hold down power key until you hear a long tone.
    4) Let go, and your machine will restart.
    5) Problem solved!
  • Ed-Eye BRC Level 1 Level 1 (45 points)
    You need to take out the battery also to do a PMU reset. You won't hear a chime during the PMU reset, just hold the button for a long five seconds.
  • Andrew Robulack Level 2 Level 2 (260 points)
    Hey,

    are you running Boot Camp/Windows XP on your MBP?

    I just turfed the Windows partition and OS off my MBP this morning and ever since the unit has returned to normal behaviour. It runs waaaaay cooler (it was almost constantly always at 65˚C before, now it ranges from 30˚C-40˚C). And the thing sleeps like it used to: I close the lid, it sleeps and the light pulses; I open the lid and it wakes up. The battery doesn't deplete as quickly, either.

    Now, don't ask me to explain this, I'm just the guy using the thing, it doesn't make any sense to me, either. I mean, why would a dormant OS on a partition cause my MBP's to behave so unusually? I just dunno.

    2.3GHz Dual-core PowerPC G5 and MacBook Pro (2.13 GHz Intel Core Duo)   Mac OS X (10.4.8)   23" Cinema Display, iSight, iPod nano, 200GB LaCie drive
  • VictoryCig Level 1 Level 1 (15 points)
    I'm using an app called MiniBatteryLogger to watch the
    status of my battery over time and it indicates that,
    despite the lack of a throbbing sleep light, my
    machine is indeed sleeping.


    Perhaps your machine is sleeping, but I know for certain that mine does not always sleep when I close the lid.

    Resetting the PMU does nothing to fix the problem.

    Remember this problem occurs inconsistently--if I reset, it will sleep properly for a little while, and then will fail to do so for no reason I've figured out.
  • VictoryCig Level 1 Level 1 (15 points)
    The PMU reset solved my problem too.


    I'm curious if this really did solve your problem, or if it only made it go away temporarily. I reset the PMU on my machine, and it slept properly for maybe half a day, then continued to fail to sleep.

    I don't think this is something the PMU directly affects. All signs point to a bug in 10.4.8. You reading this, Apple?
  • VictoryCig Level 1 Level 1 (15 points)
    I mean, why would a dormant OS on a partition
    cause my MBP's to behave so unusually?


    Andrew--

    Interesting observation. Again, I'm curious whether this solved or simply postponed your problem (see my above posts). I have an XP partition as well, but I'm not prepared to junk it just to get my OSX partition to sleep properly. A question for those with XP partitions: does your MBP sleep properly in XP? Consistently?

    Regarding the XP partition affecting system performance, I can only speculate that freeing up the extra disc space allowed OSX to reserve more hard drive space for virtual memory, reducing the frequency of reads/writes to the hard disk. This would help conserve battery power, and might have a small impact on temperature. Just a guess.

    Aside:
    If you're really dying with a hot laptop, try out these scripts I found via digg. I can attest to their safety. Check my comments on the digg thread.
    http://digg.com/apple/MacbookPro_Make_it_40_f_50_fCooler
  • Daniel Craigie Level 1 Level 1 (0 points)
    Hello everyone,

    A friend of mine baught a MBP 17" just after they where released as his first mac. He was having the same problems that a lot of you are reporting. When he closed the lid or put the coputer to sleep, it would wake itself up again and stay running in a mid sleep mode. So when he came back to the computer, it was very hot and the light on the lid catch was not glowing (like it should do when in sleep mode). Something was stopping the computer from going to sleep and when it went into this in between mode, he had to turn the power off and restat the computer.

    We spent a while going though the settings and reset the PMU at boot more times than I can remember. The we had a breakthrough.

    Bluetooth! He was using a Logitech bluetooth mouse with his system but one day in the course of troubleshooting, we disabled the "allow bluetooth devices to wake the system" tick box in the power settings and the computer went to sleep. Things where ok for about a week when the problems resurfaced.

    When we looked at the power settings again, the box that we had unticked had been ticked again??? It was either a glitch or a program not behaving itself but the system had enabled a function that he had disabled. I said to him to just turn bluetooth off and see what happenes.

    Well that fixed it. Since turning Bluetooth off the system has been behaving itself and he has had no more problems with the computer. It goes to sleep and stays asleep. The computer also does not get as hot as it used to. In fact he has reported a performance boost in general on the computer as well.

    We have repoted the issue to Apple but for the moment he cant use Bluetooth for long periods of time until Apple release a fix for the software.

    Hope this helps some of you,

    Dan
  • Michael McGlone Level 1 Level 1 (15 points)
    Hey thanks for the advice, only problem is that thats def not what's effecting my machine, cause i dont have bluetooth on most of the time and esp not when my machine is asleep in my bag while traveling to work. My machine like others mentioned above has only started doing this since 10.4.8 and its running continuously at over 55 degree's.
  • jfr001 Level 1 Level 1 (95 points)
    Not bootcamp partition, Bluetooth disabled, but still the same problem here.
    PMU reset fixed it only for a day.
    Now I need to select the "sleep" item in the apple menu to really make my MBP sleep.
    Hope that somebody will find a trick before 10.4.9 arrives...
  • VictoryCig Level 1 Level 1 (15 points)
    Hope that somebody will find a trick before 10.4.9
    arrives...


    I've come to love Apple since I switched this Summer, but their reluctance to acknowledge nigling problems is really frustrating. Failure to sleep is a problem I would expect to see on a Windows machine, but that's no excuse for it to remain a problem on my new MBP. It's a serious issue, and I hope Apple, not just "somebody," will take the time to fix it before 10.4.9.
  • standby90 Level 1 Level 1 (0 points)
    I had the exact same problem. Try reseting the PRAM (restart and hold down option/command/P/R keys. Worked fine for me. It also fixed a keyboard issue that I was having
  • Jonlink Level 1 Level 1 (115 points)
    Wow, don't ever put a computer in the freezer, especially if its really hot... rapid cooling is bad for just about everything. And that isn't even considering the damage you can do to the LCD
  • jfr001 Level 1 Level 1 (95 points)
    Try reseting the PRAM
    Worked fine for me.


    Maybe you should wait a couple of days to be sure that it solved indeed the problem.
    PMU reset solved the problem for me during a couple of days, but then it came back.

    Anyway, I'll give it a try.
  • The.Britters Level 1 Level 1 (0 points)
    Im having the same problems. Except when I open my computer my computer's display setting is very dim. It's really annoying to have to brighten the display setting everytime I open my macbook pro. I reset the PRAM about a week ago (and that fixed the dim problem), and today the problem reappeared today. Any suggestions?
  • was280 Level 1 Level 1 (0 points)
    Im having the same problems. Except when I open my
    computer my computer's display setting is very dim.
    It's really annoying to have to brighten the display
    setting everytime I open my macbook pro. I reset the
    PRAM about a week ago (and that fixed the dim
    problem), and today the problem reappeared today. Any
    suggestions?


    My MBP is a month old and is doing the same thing as everyone else's. When I close the lid in my office and drop in my briefcase and wait an hour or two it is blazing hot when I pul it out, and every once in a while I can hear the email app "ding" when a new email hits. Isn't it dangerous for the MBP to get this hot, I think it got so hot today that it shut itself down, I had to restart when I got home. Do they automatically do this as a safety measure to prevent damage??? Also, we all need to stomp our feet and scream at Apple, this is totally unacceptable for a brand new $4,500 machine.

    MBP 17   Mac OS X (10.4.8)  
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