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Sleeping Macs reboot when waking up

updated 09:45 pm EST, Mon February 25, 2008

Sleeping Macs reboot

Many Mac owners are crying out to Apple for help with an issue that seems to have cropped up only recently, resulting in erratic and mysterious reboots when attempting to awaken a sleeping Mac. Users on Apple's own support forums are posting in droves about various Mac systems with the issue, though most affected systems appear to be Mac Pros and iMacs. One solution which has worked only for a portion of those affected is to reset the Mac's PRAM and SMC, while still others report no changes in their Mac's behavior.

Some users report the problem occurring just after installing third-party memory, others say the mysterious reboots began occurring on a newly purchased machine with stock memory and no peripherals attached. One user who runs Windows Vista natively under Boot Camp says his Mac Pro sleeps and wakes normally in Windows, suggesting that the problem is not hardware based but is rather an issue with Mac OS X itself.

One Mac owner promised to return his Mac for a full refund and wait to purchase a new Mac until Apple fixes the problem, stating that after working for seven years with a "flawless G4 Cube" he has no desire to "downgrade to a buggy computer" that cost him 2,500.




by MacNN Staff

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Comments

  1. Zaren

    Joined: Dec 1969

    0

    "recently"?

    My MacBook was doing this for a year. It finally stopped after I disabled some feature in generating the sleep image. It also managed to fix my machine's problem with not seeing my home wireless on wake. I just wish I could remember the command I executed to do the disabling.

  1. JackWebb

    Joined: Dec 1969

    0

    bugs

    There are plenty of bugs apparently. How about the flash one where Safari keeps quitting like it just did to me on this page. I have the latest Flash that I can find.

    I've had a mini reboot on me while I had an iSight hooked-up and video chatting. It's done it a few times. What? I'm not supposed to use a Firewire drive to boot-up from? I look in the console for messages, clues? Nothing.

  1. docbop

    Joined: Dec 1969

    0

    Simple fix

    Just reset the PRAM and the problem goes away. If you install the 10.5.2 update you might have to reset the PRAM again. This has solved the problem for me and a number others on the Apple discussion group.

  1. danviento

    Joined: Dec 1969

    0

    similar/diff. complaint

    I'll put this out there to see if anyone else has this issue. Whenever I'm at work and I open up my PowerBook, the unlock-screensaver window pops up, as it should, and about halfway into typing my 12 character password, the cursor deselects the text box, making me retype the password.

    This is due to the fact that it picks up wireless networks that are not on my list (one of which I use, but don't want on the list due to its generic name and unprotected security) prompt a window asking which I'd like to use, which you can't see until you unlock the screen.

    Anyone else have this issue? I wish they wouldn't allow a window you can't see to take cursor priority over the unlock window. Talk about a pain.

    End rant.

  1. The Wolf

    Joined: Dec 1969

    0

    danviento

    Did u try deselecting the "Remember any network this computer joined box" which is under your preferred network list? [or maybe even deselecting the ask to join new network box on the main prefs page].

  1. hayesk

    Joined: Dec 1969

    0

    re: logs?

    Did anyone bother to post a syslog or any other log that may have a clue as to what is happening?

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