maclover6
Level 1 (15 points)

Q: Power Mac G5 not sleeping with Studio display

I have a Power Mac G5, and recently I decided to add my Studio display to it for a second display. When I did that, it for some reason stopped going to sleep. It will act like it is going to sleep, but it will wake back up!! Please help!

PowerMac, Mac OS X (10.5.8)

Posted on Mar 10, 2013 7:42 PM

by Brewster Magneto,Solvedanswer
Brewster Magneto Brewster Magneto
Level 1 (50 points)
A:

maclover6, have you tried the AppleJack utility? Recently I had some sleep/wake issues on my PM G5 that I couldn't cure via the usual suspects. In my case, when waking the display from display sleep--the CPU wasn't asleep--by moving the mouse or hitting a key, the screen would wake up, then about a second later the curtain of death would descend, and the display locked up. I had to power off the G5 and restart every time this happened--the logs show kernel panics at those times, but those may have been caused by my powering off a running machine which simply had no active display (vs. shutting it down). Anyway, I remembered I had installed AppleJack, which is a disk repair utility that also removes system disk caches; these get rebuilt automatically in the next restart. Running AppleJack cured the sleep problem on my computer (knock on aluminum). I looks to me that something had corrupted one of the system cache files on disk, and the system has now successfully rebuilt that file.

 

AppleJack is at: http://applejack.sourceforge.net/

 

After installation, restart your Mac in single-user mode <Command-S>, then at the command line type:

  applejack auto restart

 

This will run AppleJack by iterating through all its tasks in order, then restart your computer in normal mode.

Posted on Mar 31, 2013 7:39 AM

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maclover6

Q: Power Mac G5 not sleeping with Studio display

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  • by BDAqua,

    BDAqua BDAqua Mar 23, 2013 3:07 PM in response to maclover6
    Level 10 (123,790 points)
    Mar 23, 2013 3:07 PM in response to maclover6

    Well, does the same problem occur if those 4 are not running?

  • by maclover6,

    maclover6 maclover6 Mar 25, 2013 8:28 AM in response to BDAqua
    Level 1 (15 points)
    Mar 25, 2013 8:28 AM in response to BDAqua

    It still seems to happen when no applications or programs are running.

  • by BDAqua,

    BDAqua BDAqua Mar 25, 2013 10:12 AM in response to maclover6
    Level 10 (123,790 points)
    Mar 25, 2013 10:12 AM in response to maclover6

    Hmmm, open Console search for wake... any entries?

  • by maclover6,

    maclover6 maclover6 Mar 25, 2013 5:21 PM in response to BDAqua
    Level 1 (15 points)
    Mar 25, 2013 5:21 PM in response to BDAqua

    There are no entries at all. I also checked online to see if any of my background running applications would prevent it from sleeping and none of them do. The fact that this only happends when I connect the Apple monitor is puzzling me.

  • by Brewster Magneto,Solvedanswer

    Brewster Magneto Brewster Magneto Mar 31, 2013 7:39 AM in response to maclover6
    Level 1 (50 points)
    Mar 31, 2013 7:39 AM in response to maclover6

    maclover6, have you tried the AppleJack utility? Recently I had some sleep/wake issues on my PM G5 that I couldn't cure via the usual suspects. In my case, when waking the display from display sleep--the CPU wasn't asleep--by moving the mouse or hitting a key, the screen would wake up, then about a second later the curtain of death would descend, and the display locked up. I had to power off the G5 and restart every time this happened--the logs show kernel panics at those times, but those may have been caused by my powering off a running machine which simply had no active display (vs. shutting it down). Anyway, I remembered I had installed AppleJack, which is a disk repair utility that also removes system disk caches; these get rebuilt automatically in the next restart. Running AppleJack cured the sleep problem on my computer (knock on aluminum). I looks to me that something had corrupted one of the system cache files on disk, and the system has now successfully rebuilt that file.

     

    AppleJack is at: http://applejack.sourceforge.net/

     

    After installation, restart your Mac in single-user mode <Command-S>, then at the command line type:

      applejack auto restart

     

    This will run AppleJack by iterating through all its tasks in order, then restart your computer in normal mode.

  • by maclover6,

    maclover6 maclover6 Mar 31, 2013 2:01 PM in response to Brewster Magneto
    Level 1 (15 points)
    Mar 31, 2013 2:01 PM in response to Brewster Magneto

    Thank you so much! This worked! Not only did it work, but it is actually running a little faster! Thanks again!

  • by BDAqua,

    BDAqua BDAqua Mar 31, 2013 2:04 PM in response to Brewster Magneto
    Level 10 (123,790 points)
    Mar 31, 2013 2:04 PM in response to Brewster Magneto

    Great suggestion, thanks... I use it frequently!

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