Hi Ronni, Well, I hadn't even heard of "SafeSleep" ;o)
After a bit of googling and reading Apple Support Articles, I'm a bit wiser! I would be surprised if Entourage was the culprit as I always tend to leave it (and Firefox) on when I sleep the computer - and for over a year this hasn't given any problem (I realise this doesn't actually rule it out...) However, after reading <http://support.apple.com/kb/HT1776> I checked and found that I do have "Allow Bluetooth devices to wake this computer" checked and realised that I had recently added a wireless trackpad to my set-up. Since I used a wired keyboard, I don't actually need to wake the computer by bluetooth - so I've unchecked this option as my first trial "fix" - we will see how we go. Thanks for alerting me to some of OSXs sleep "features" - whilst I was aware of the 3 basic modes of hard drive/display/system sleep, I hadn't appreciated all the other considerations. Cheers Neil -- Neil R. Houghton Albany, Western Australia Tel: +61 8 9841 6063 Email: n...@possumology.com on 13/1/11 1:55 PM, Ronda Brown at ro...@mac.com wrote: > > Hi Neil, > > >>> I tend to feel that the problem MAY be down to the sleep process hanging >>> (after the screen has been put to sleep but before the computer has been >>> fully put to sleep) as one strange thing I have noticed is some entourage >>> error messages reporting failure to connect to server > > > The problem with SafeSleep is that if data is being written to the hard drive > when you select 'sleep', > SafeSleep encounters an error that causes the machine to hang in sleep. > > Could this be your problem? > > Try quitting Entourage before selecting 'sleep'. > > Cheers, > Ronni > > On 13/01/2011, at 11:00 AM, Neil Houghton wrote: > >> >> Hi all, >> >> A strange problem this.. >> >> A few days ago, my iMac wouldn't wake from sleep properly - in actual fact, >> the screen didn't wake-up (though I didn't realise that at the time) - I >> could hear the disc going and, since I have the Mac set to require password >> on wake from either sleep or screen saver, I should get a login window - but >> the screen remained black, with no mouse cursor. >> >> I tried a few random key strokes (to try and "wake" it) and got the "beep" >> that tells you that is not appropriate (ie I needed to login first). >> >> At the time, I was worried my screen had died (and me just a month out of >> warranty!) and decided a forced shut-down and re-boot should be tried. >> However, as I was pressing the power button, the log-in window appeared >> (together with a message about incorrect password - obviously referring to >> my random keystrokes when the screen was black). >> >> I then logged in without problem and everything was OK - I have since >> surmised that when I went to force the shut-down I actually pressed the >> power button twice - which put the computer to sleep and then re-awakened it >> (together with the screen, this time). >> >> At the time, I just put it down to some random gremlin - was relieved my >> screen was not dead - and forgot about it! >> >> >> Until this morning... >> >> Go to wake up the computer, can hear activity but the screen stays blank - >> this time I try just blindly entering my password and hitting return - the >> login obviously works and I can hear entourage (left running when the mac >> goes to sleep) retrieving emails from various accounts - but the screen >> stays black. >> >> I fired up the laptop and the iMac can be seen on the network. I try Google >> (from the laptop) and find a 5 page MacRumours forum on "27"iMac won't wake >> from sleep" stretching from to November 2009 (the vintage of my iMac) >> through to December 2010 (ie, basically, now): >> <http://forums.macrumors.com/showthread.php?t=825871> >> >> This showed LOTS of people having sleep problems - though the problems and >> circumstances are far from identical - several of the posts seemed similar >> to my problem and the consensus seemed to be that the screen was not waking >> up and that perhaps the computer had failed to go completely to sleep. >> >> This reminded my of my power button pressing previously - so (more >> observantly this time) I pressed the power button once and did, in fact, >> hear the computer go to sleep - I then pressed the button again and the >> computer awoke correctly and presented me with the login window. >> >> Unfortunately, though there are MANY theories on the forum - there appears >> to be no clear cause/solution: >> >> Some people have blamed USB hubs and wireless keyboards - not applicable in >> my case. >> >> Some people point to hardware and have had Apple replacing power supplies, >> logic boards (sometimes multiple replacements) and even new computers - this >> may fix it for some people - but others have the problem re-occur - even >> over new computers. >> >> Others point to this as indicating a software problem and advocate complete >> re-installations of the operating system - again this has worked for some >> (or appeared to work for a while) but not for others - and the problem seems >> to span several versions of Snow Leopard. >> >> For myself - I had the computer for over a year before the problem appeared >> - but it then re-appeared within days. >> >> I haven't recently changed any hardware (& don't have a usb hub connected). >> >> I haven't had any major software changes (haven't yet gone to 10.6.6) - >> though I may have installed a few small programs/utilities? >> >> I tend to feel that the problem MAY be down to the sleep process hanging >> (after the screen has been put to sleep but before the computer has been >> fully put to sleep) as one strange thing I have noticed is some entourage >> error messages reporting failure to connect to server - at times when the >> computer should have been asleep - but these are isolated and not recurring >> on the 20 minute schedule that entourage checks for mail. >> >> >> Anybody else experienced or experiencing similar problems? >> >> >> Any ideas? >> >> >> At present it is not too big a problem since (unlike some posters) I don't >> have to force shutdown to get out of the problem - and it's only happened >> twice - but if it starts to get more frequent it could get very annoying! >> >> Cheers >> >> >> >> Neil >> -- >> Neil R. Houghton >> Albany, Western Australia >> Tel: +61 8 9841 6063 >> Email: n...@possumology.com >> -- The WA Macintosh User Group Mailing List -- Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> Unsubscribe - <mailto:wamug-unsubscr...@wamug.org.au>
