Apple Event: May 7th at 7 am PT
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)
It still seems to happen when no applications or programs are running.
Hmmm, open Console search for wake... any entries?
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.
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.
Thank you so much! This worked! Not only did it work, but it is actually running a little faster! Thanks again!
Great suggestion, thanks... I use it frequently! 🙂
Power Mac G5 not sleeping with Studio display
