After installing mavericks, the iMac will not wake from sleep properly (at all)

Good JJ. I updated to 10.9.1 on Dec 18th. I have been holding off testing if it made a difference and kept the no sleep Energy Saver Prefs settings pending seeing what others might report.

I changed back to the default sleep settings in Energy Saver Prefs yesterday afternoon. (I also did a Shut Down and start, and then a Restart after that just in case it might make a difference - I doubt it would, but why not).

So far all has been well, including over night, so I am hopeful.

By the way, yes there does not seem to be much in the release info for 10.9.1 that could relate to this, but I did spot a mention of a Safari issue ("Fixes an issue that could cause Safari to become unresponsive..."). I almost always have Safari windows open, even when the machine is sleeping, so there just might be a clue there.

I have been having the same waking from sleep issue since installing Mavericks on my mid 2010 27" iMac.

The iMac has a Time Capsule and two Western Digital 3 Gb firewire drives that are set up as a Mac OS Raid volume.

When the iMac goes to sleep for a few minutes, it wakes normally. If it goes to sleep for longer, it won't wake and a hard reset (power off) is required. When the computer is asleep it cant be accessed by our Apple TV and I seem to repeatedly have to restart Home Sharing in iTunes after restarting the computer. .

I checked the hibernatemode setting - it was set to zero already.

I havent tried the other suggestions yet, but hibernatemode alone doesnt seem to be the whole story.

It definitely wasnt a problem prior to updating to Mavericks, which installed cleanly.

Any further progress on this would be really helpful.

Hello Bob,

Back in November, you wrote, "I have not found a way to inform Apple formally of a problem…".

You can provide feedback to Apple via http://www.apple.com/feedback/

Incidentally, I have just upgraded to a new version of Mavericks and am experiencing this unable to wake from sleep problem for the first time ever (been a Mac user since 1989!). I have reported the issue.

David, that is an interesting link. How does one discover it - say starting at http://www.apple.com/?

David and AW1960 and anyone else - so far I have not seen the problem under 10.9.1 - nearly two days and two overnights so far. It may be helpful if people can mention if they are on the initial 10.9 or on the 10.9.1 update.

I really can't remember how I found that page, but I've had it in my bookmarks for some time.

Anyway, nope, the problem did not manifest itself in 10.9.1, and indeed, it is not something I had ever seen before a recent beta upgrade, but I can't say more than that.

Unfortunately I have to report I got a would not wake this afternoon. So maybe 10.9.1 was not the magic fix.

I looked at the logs with Console and noted two things - first there were entries right up to when I shut down and started, suggesting the machine was running more or less OK behind the scenes. Also there are a lot of messages in the logs suggesting things not being right - this and that failed and so on. And in [articular I keep finding messages from WindowServer. I assume it has a lot to do with what is displayed, or not displayed in this wakeup scenario. Maybe a hint about some sort of software incompatability somewhere, and maybe a poter towards it being software rather than the hardware my call to AppleCare had suggested would be the next step.

David, I am a little unclear about your reference to a beta version. Are you saying you were OK on 10.9.1 but since then you put up a newer beta and it is having problems?

Yes, Bob, and I have only had such problems since installing the newer beta version.

Resetting the PRAM seems to have corrected the same problem with my iMac that I experienced after installing Mavericks.

So as all of us know. 10.9.1 update didn't fix this issue. And sadly. 10.9.2 has been seeded to developers and I have read the seed notes and it mentiones nothing about a fix for this issue. Appears Apple still is either unknown or ignoring it.

I have been on this thread since it started and have tried every single troubleshooting technique mentioned so far with zero success.

Few days ago I bit the bullet. Re-downloaded mavericks(10.9.1). Performed a time machine backup and did a fresh install.

After that. Did a restore from time machine. Only restoring apps and user account details (Left the computer settings out). So far it looks like the issue is now completely gone with the computer waking up all the time.

Good luck to those logging bug / issues to apple. But maybe it might be worth also biting the bullet and doing the same as me

I am very reluctant to do a clean install and hope I get everything back from Time Machine. I have A LOT of files and apps accumulated over a long time - two generations of Mac - about 2,000,000 files total on the hard drive.

The main Time Machine restore I have done was, If I recall a full restore of everything. I am not clear what to expect from that sort of restore.

So, I am thinking of doing a reinstall over the existing system as an intermediate level. Not at all sure it is going to resolve the problem, but maybe.

So far from my experience. Time machine performs perfectly every time. (For personal use. And for business use backing up our servers and file servers)

I think you will be more than fine. If you are still worried though and have a second mac. I would target disk the mac and capture an image. Then perform the clean I store and use time machine to resore. If you than have any issues or anything missing. You have that image u created to capture the files that are missing

Me too - iMac 27" Mid 2011. Has been working just fine under 10.9 and then since 10.9.1 it goes into screen sleep. I have to press the power button for about a second, wait a few seconds and touch it again, then it wakes up. Definitely a 10.9.1 bug. My Mac Pro Early 2008 is fine.

Problems came back after 2-3 days. Even persisted through a clean install of 10.8. Must be a bad video card...

Download etrecheck from Macupdate and see if any rogue processes are running in launchdaemons or launchagents. If there are, from perhaps unused software from the past or adobe, which quite often duplicates processes in the userlibrary and main library, you may find that this will disappear. Also check any startup items that you dont need, which will free up RAM anyway. Hope that helps.

Hum.. This discussion is a bummer. Mine was still working fine when I left town Xmas day, so for about four flawless days of 10.9.1. I guess I will find out when I get home!