Q: sleep wake problem with Yosemite on my Mac Mini Mid 2012

Same problem here as well, late 2012 mini with speakers going through the headphone jack.  When it first boots after the crash if often doesn't recognize the auto output until I unplug and replug it

Interesting comments here.

It seems that when the computer wants to wake from sleep, it looks for various things and can't find them even though they are there. Some kind of hardware problem.

I'm not going to start plugging/unplugging stuff just because I want the computer to wake from sleep. I'd rather just turn it off completely and then turn it on again when I need it.

Seems that the sleep wake issue is strictly assigned to the headphone/audio jack. It doesn't make a difference if i assign any audio routing to the standard out or not, it all works when *no* audio cable is plugged in and sleep wake doesn't work and/or crashes (could be the same, because SystemUIserver "prints" a picture of the latest working desktop status when the system crashes) when a plug is plugged in. That could only be a hardware controller driver bug or something in that range.

Been having this exact problem since running Yosemite beta, certainly 2, possibly 1. Initially I thought they keyboard was rejected as the mouse worked.  Sent the problem in via the Feedback Assistant with every update. Figured it was something Apple would sort out by public release time. Eh, no, they didn't.

Has everybody filed a bug report via Apple Feedback online?

I'm tired of force shutting down my mini every time I want to use it after an hour or more of inactivity.

'12 mini bumped up with 16GB RAM and Mercury Pro 6G SSD, logitech keyboard & mouse, no hub; wifi OFF.

I invite everyone of you to file a bug report at the address below. More we are, the sooner they fix it.

https://www.apple.com/support/feedback/

Different logfiles tell me that a very high numbers of wake-up procedure calls from two core frameworks, SystemUIServer and Spotlight, cause that crash, because the system becomes unanswerable. But this could also be only a symptom for a prior crash of hardware drivers in the audio framework.

Mid 2012 Mac Mini

Wake from Display sleep = ok

Wake from Hard Disc sleep = ok

Wake from full sleep = not ok

Clean install, EPROM and SMC reboots have had no effect.

I had the same issue with Beta 2 - not Beta 1. Rolled back to Mavericks at the time, but inc eI've upgraded icloud that's not a good solution.

I had the same issue.  Speakers connected directly to mac mini.  When I disconnected them and moved them to the output of my monitor (sound over HDMI), everything works right.  Wake now works.

Same exact problem as many others have reported.  Late 2012 Mac Mini, with speakers plugged into headphone jack.  On wake from sleep, the mouse cursor moves, but nothing else is responsive.

Setting it to computer sleep never worked for me as a temporary workaround.  I have two monitors and I'm able to let the monitors sleep with no problem.

hi

I just tried the same thing: disconnected the speakers from the headphone jack and now I can bring my Mac Mini back from the sleep state..hardware conflict of some kind I would think

I have the same exact problem my mac mini 2013 seems to freeze when I wake it up it use to have a pass code I thought that was the problem I disabled it and it is still doing the same thing today actually the sound settings were messed up and external speakers were disabled..it seems after 5 minutes it reboots itself

Well my mid 2010 mac mini has the same issue, except neither the "push power button to wake" trick or the "remove speakers from the line out port" work. I push audio through HDMI and am still having wake up problems. 

My sleep function so far seems to be working after i disconnected a headphone extension cord from the back of my mac mini so whoever suggested it was a sound hardware  conflict,thank you