Erratic wake-up from sleep, HD waking noise, etc. (MacBook, Leopard)

Ever since upgrading to Leopard a couple of days ago, my MacBook (white, 13") displays erratic behavior in waking up after going to sleep, and, while it IS asleep, it makes that whirr-click noise about every 30 seconds round the clock. It does not make the noise while awake.
I've tried various power mgmt. settings without improvement. Is this expected?

I learned something new about my MacBook. If you have another laptop underneath it, particularly one that's ON (closed), it can apparently mess with the pressure sensors (or whatever the devices are that park the hard drive if sudden motion is detected.)
When I removed the second laptop from my desk and leave just the MB on it, problem is resolved. Thx.

Similar Messages

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  • Taking a long time to log in or wake up from sleep.

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    Okay, I seem to have solved the problem I posted about earlier.  I noticed that the language preference in the upper right hand corner of the screen (between the date and time and the Spotlight icon) had somehow gotten switched from American English to French.  When I switched it back to American English, my password worked when waking the computer from sleep mode.  I have no idea why changing the language preference would affect the way the password works but that seems to have been the case.  I'll post again if I experience more problems.

  • My mac won't wake up from sleep, what can i do

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  • MBP will not wake up from Sleep

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  • TS1367 I am asking this question about my 27 inch iMac Desktop Computer. I normally use my Laptop and very seldom use the desktop but was going to download the new software earlier today. I could not wake it from sleep.

    The other evening we had a storm and lightening hit a house a few doors from me. It jolted my chair but that seemed to be all here. I use my laptop most of the time but since there was a software download I went to my 27 inch iMac and could not wake it from sleep. The light on the keyboard is not lit either. I have this connected to a Battery Backup Power so do not know what has happened or what to do. When I push the power button to try to turn it on nothing happens. There is no shound, no video, nothing; however the disk drive that does my time maching backup has a light on it and the other things that are plugged into the battery power pack also have lights on them. The printer is on and says it is ready to print. Since I cannot boot it up I do not know what to do to even try to get it started. I did not know what would happen if I put the first start up disk in  the external disk drive and try that or not. The internal drive is broken. I do not have any repair shops or apple stores around me at all less than 150 miles away and I am disabled with 24/7 help and oxygen so can not take it in. Are there any suggestions that anyone can give me. I have not been able to find any way to reset the backup battery pack either. It is a Tripp-Lite. Any help anyone can give will be greatly appreciated. Thanking you in advance for your time and trouble.
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