Currently Being ModeratedJul 28, 2012 1:15 AM (in response to Raffers63)
In System Preferences > Security & Privacy click the Advanced button (bottom right, you will need to unlock the padlock bottom left first with an Admin password).
Is the 'Log out after 60 minutes inactivity' preferences set? If so, unset it.
Currently Being ModeratedJul 28, 2012 1:26 AM (in response to softwater)
Thanks but the logout setting is not active. I would have expected the encoding applications to quit if the logout process was being invoked. The computer is simply going to sleep and suspending all activities. Strange.
Currently Being ModeratedJul 29, 2012 12:51 AM (in response to Raffers63)
A quick update - I also checked my 2011 Macbook Pro and it displays the same behaviour. So this is not an iMac isue, it's definately a ML issue. I can't believe that this has gone untested or undocumented and it must be affecting lots of folks. Any help would be greatly appreciated as I'm seriously considering a retrograde to Lion.
I will also open a support ticket with Apple.
Currently Being ModeratedJul 31, 2012 8:32 AM (in response to Raffers63)
THANK YOU! This is happening to me too! I am not crazy!!!~
Currently Being ModeratedJul 31, 2012 8:34 AM (in response to Raffers63)
I also had to change the settings to NEVER put iMac to sleep. I am going to try to encode a file on my new MBP and see if it displays the same behavior, even though I totally agree with you--it's not a hardware issue.
Currently Being ModeratedJul 31, 2012 9:55 AM (in response to Pedro Perez)
Pedro, You are not mad :-) I had Apple on the phone yesterday and got some additional information which may help:-
It seems that Apple changed the power management routines in Mountain Lion to help with their new "power nap" feature (which only works on the very latest SSD Macbooks). This has the effect that 3rd party applications need to be updated in order to make the system stay awake if those applications are busy. I also did some other digging around and found that even some Apple apps are not always compliant with the new OS calls e.g. Time Machine getting cut off mid-backup.
The way I use my macs is not compatible with the new PM systems in Mountain Lion and I have just spent the past 24 hours or so going back to Lion on both my iMac and Macbook Pro. Until all the apps that I use are fully compliant with the new PM calls, I'll stick with Lion.
Hope this helps.
Currently Being ModeratedJul 31, 2012 11:04 AM (in response to Raffers63)
Thank you for your reply. I am glad I am not mad! Wow, it seems like they just released this ML without caring. Let me ask you something just out of the blue. Do you use the headphone output as an input, too? Assuming you have the 13" with the combo headphone/mic? Another fail from Apple for removing the dedicated input.
2nd question...how do I go back to Lion? Will we be able to update again after they fix everything?
Thank you again! Good day! or night!
Currently Being ModeratedJul 31, 2012 12:59 PM (in response to Pedro Perez)
I have the 15" Macbook Pro so I didn't see the problem you describe.
Going back to Lion was was relatively easy as I kept a copy of the original Apple download on CD and USB key (there are instructions on the internet on how to do this). Another method is to restore from a disk image if you did regular disk image backups.
If neither of these are options are available for you, I would suggest contacting Apple App store support to get them to make Lion available for you to download again and then search the internet on how to make a bootale CD or USB key from the download.
When these issues are resolved or apps updated to correct the problems, you can simply download Mointain Lion again from the App store and do another upgrade.
Currently Being ModeratedSep 9, 2012 2:40 AM (in response to Raffers63)
I'm confused on one point though. If we have non-SSD Macs, such as iMacs, Mac Pros, Mac minis, some MacBook and MacBook Pros and even some MacBook Air models, why do those non-SSD Macs have to utilize the same behavior as SSD Macs? Why not just have non-SSD Macs use power settings that have been working in Lion, Snow Leopard, and earlier?
i.e., if Power Nap compatible SSD Mac is running Mountain Lion, use Power Nap power management and if there is no SSD, don't use Power Nap power management.
Currently Being ModeratedSep 9, 2012 2:51 AM (in response to Raffers63)
Same problem on iMac 2011 and Macbook Air 2010 Handbrake, JDownloader, WOW launcher, .... I'm coming back to Lion and hope in patch 10.8.2
Currently Being ModeratedFeb 11, 2013 5:18 PM (in response to Raffers63)
Even iTunes can't handle the new power saving "feature"! My MacBook goes to sleep while downloading with iTunes!