power/sleep issues after upgrading to 10.8.5

You might try this:

Repair the Hard Drive and Permissions - Lion/Mountain Lion

Boot to the Recovery HD:

Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.

Repair

When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu. Select Restart from the Apple menu.

Then download and install: OS X Mountain Lion Update v10.8.5 (Combo).

I have a very similar issue after updating to 10.8.5 on my Mac Pro. When I put it to sleep, it wakes back up and does not sleep like it did prior to the update.

Please read this whole message before doing anything.

I have exactly the same problem, I have an imac 2012 27 inch, i7. It really ****** me off that this is happening now, it was all fine before. Another thing I noticed is, I am using a Digidesign/Avid MBOX 2, and when I put the computer to sleep, the MBOX 2 goes momentarily to sleep(only one light on), then wakes again(all lights of MBOX 2 light up) and I can hear the drives spinning again, meaning it wakes from "deep" sleep but the screen stays off, and then it tries to go to sleep again, and wakes up again, and this keeps on going on...continuously...The manifestation of this if you leave your computer in this supposed sleep all night or for quite a few hours is that you cannot wake it up from the mouse or power button, although the system looks active and still on.

Also it happens without the MBOX 2 connected, which is USB audio interface by the way, and with just a Seagate external USB 3 Drive connected, which I use for backing up and has worked fine without these sleep issues up to 10.8.4.

So it is like this...you put the computer to sleep, it goes to sleep, external drive spins off, after a few seconds external drive spins on again for no reason, display stays in sleep, but not rest of the system, as when you wake up a good indication to see whether it has woken up from deep sleep or just display sleep is that if you had wifi on and connected, when it wakes up now it is always connected to wifi, whereas when normally the imac wakes up from deep sleep the wifi connection(just the connection not the wifi interface) is off and is looking for it and connecting to it after you have woken it up. Something totally going wrong with the power management since 10.8.5, no doubt. Ι initially had installed 108.5 from the software update window, done the combo update on top now, and still no change in this behaviour. Strange that it let's me install the 10.8.5 combo, as before, if you had installed the update, it would not let you do it again...Not sure about what this is...

I had different but still sleep issues with an imac late 2009 i7 27inch, after a certain update in Snow Leopard, where again I had done the update through the software update window, instead of downloading the combo one...back then it was that it wouldn't actually go to deep sleep, just display sleep.

It is so frustrating that this happens. The biggest issue is that if you leave the computer supposedly at this sleep for a long time it does not wake up from the mouse or elsewhere...!!!!

And another update, removing the Seagate MyBackup(USB 3) or whatever it is called, putting the computer to sleep, and waking up, it does actually behave as it should, it wakes up and the wifi is looking for the connection and connects after a few seconds, it is not connected as when you have a USB device connected(the MBOX 2 or the Seagate external USB 3 drive in my case) which it seems wakes up the computer from deep sleep(which means it is on and the wifi connects in the background)immediately after a few moments you put it to sleep(observation is that MBOX keeps on going on and off sleep as led's go off and on at regular intervals and the same seems to happen with the external drive....).

The cure...in Snow Leopard with the sleep problems after an update, was to re-install leopard and do the combo update, meaning re-installing the whole system, which is quite a pain in the back side. I hope this is not the case in Mountain Lion otherwise we should be compensated for Apple ruining our system and organisation. The only cure I see for the minute and I am not sure if it will work is to revert to an earlier Time-Machine Backup which was made when the system was still in 10.8.4. And if this works, I will not do the 10.8.5 stnadalone or combo update until Apple start becoming serious with us, and not mess with our work and computers which they sold to us as the perfect machines...

On another note my 27" i7 2012 imac had also these backlight uniformity problems, where part of the screen is slightly darker(on the right hand side, nothing major but noticeable as the same colour has a different hue in the brighetr area of the screen) so I am quite fed up with this drop in QC at Apple, not only in hardware but in software...I am currently waiting for a replacement, but this is nothing to do with this update.

I seriously hope that they release 10.8.6 soon and that it will solve these issues which people who installed 10.8.5 already are experiencing. In fact even their suggestion, if it will be one, let's see, for people to consider going to an earlier backup where the system worked fine(what I am considering to do now), will be unreasonable and undermine their ability to create problem free updates and software which affect basic functions of the system such as sleep, and they will have no excuse, as it is not us who did something wrong to our system, it is their update which they fed to our systems through their software update, and let's say as the ordinary mac user thought it would be good to do...so there is an element of fooling people there as well...What if someone just bought their mac recently and did not have a backup but had already set up(customised) their system to a signinicant degree before the 10.8.5 update? I believe that we should be covered and compensated for such things, as I have lost time and money dealing with these issues in the past.

Don't they properly test these updates, with all their fleet of different mac models, testing them with general peripherals connected to them, that people normally use, such as USB DEVICES, Audio Interfaces, External USB Drives? Come on they make billions for god's sake. We're spending 2 grand on a system that is touted as heaven on earth and it does many things brilliantly, but does fail on some, and what I really get is all these ridiculous issues every now and then which make me lose time and money, as I just want to have a system that sleeps and wakes properly!!!!!!! I AM NOT HAPPY, and it is Apple's Programmers which messed it up for me again...No bonuses this month please.

I believe this is a bug in the 10.8.5 release based on the forum posts regarding this issue over the past 24 hours. Not sure if it would constitute a bug, but this issue has been very prevalent.

Right I have NEWS.

I disconnected everything, and did and SMC reset, and then after rebooting I did the command-alt-p-r key pressing while boot up and left it to chime 4 times...

Then when on, I connected the MBOX2 set the mac to sleep and it slept imediately fine and deep, and after a few seconds I woke it up and it woke up properly and straight our of deep sleep(not display sleep only, as the wifi was off when it woke up and went on to search and connect shortly after which is normal behaviour). Then I tried the same with the Seagate USB3 Drive connected, and again it worked fine, the drive slept and did not keep on spinning up and down, keeping the computer on display sleep only, while at the same time MBOX2 was connected as well and behaving fine.

Then I connected a USB MIDI keyboard I use and tried the sleep, and the problem came again! Tried it immediately after without the USB MIDI keyboard on, and no problem, so now I know the MIDI keyboard is doing something. But still in 10.8.4 I did not have this problem!

I have to say though that my MIDI keyboard(Evolution MK-449C) has some issue, when I am in Logic and for a long time now, it does funny things to the pans on the tracks, it is as if it sends commands, which I am not doing myself by pressing anything or twisting any knobs on the keyboard, but I had this problem for a long time and it was only appearing while I was using Logic, it would not affect the computer in any other way, and up to a few days ago the computer would sleep fine with it connected and wake up fine, and at least I did not have this thing when after a whole night or alonger period of sleep it would not wake up and you would have to shut it down by the power button and reboot it. So I believe that the update still has something not quite right with it....but I wanted to be clear with what I have connected on my iMac. Maybe this update does not like specific USB devices...

The work-around for now is to logout first, then put the Mac to sleep. It's a hassle, but works.

This doesn't solve the issue of the Mac not being able to auto-sleep however if you step away from it.

Try running the combo updater. It fixed a lot of problems for people when 10.8.4 was released.

10.8.5 Combo Update

Actually I have some more news, it seems in my case it is when Logic Pro is on, then that's where the problem arises, as I just tried sleeping the imac without Logic on and with the MIDI USB Keyboard and MBox 2 connected and it works fine. I am pretty sure that the 2 times I found the computer not waking despite being on and having to shut it down by the power button happened once overnight when I manually put it to sleep, and on another occasion when I went out and put it to sleep and came back after an hour or so, both times Logic Pro was on. It seems this not waking up at all issue happens after a certain period of time while the Imac is sleeping, as Logic Pro seems to not let the system go to sleep, only the display, Mbox going off then on then off at regular intervals, and somehow this stuck state of the dark screen and not waking up arises after a while, but if you wake up the system let's say after 5 minutes it seems to wake alright(although it was not really sleeping as Logic keeps the USB audio and Midi Keyboard interfaces coming back to wake but not the screen). It looks like a loop between Logic Pro and the system acting the opposite way, system wants to go to sleep as you commanded it so, Logic Pro wakes it(but not display) and this goes on again and again until I guess something happens and you can't use the mouse to wake up the computer, neither the power button. So the solution for now is to quit Logic Pro when not using it, and the imac will go to sleep fine after a certain interval. But again, before 10.8.5, it was not doing that. I will try sleeping the imac tonight without Logic Pro on and see whether it wakes ok in the morning and will let you know. If it does it could mean Logic Pro is the problem here.

I don't know if this is related but .... I have two Firewire disks on my iMac. Since the 10.8.5 update, access to either of these disks is slightly delayed by a second or two and I can hear the disk(s) spinning up. Apparently they spin down while the computer is idle (I'm still logged in and the computer is set to never go to sleep and the "Put hard disks to sleep when possible" is NOT checked.)

Tom