sleep wake problem with Yosemite on my Mac Mini Mid 2012

3 month old trashcan MacPro, tried unplug headphone, clean install yosemite 10.10.3, disabled BT device from waking up the mac, all failed. Basically after sleep for a while, won't wake up, have to hard reset, and a lot of times first time hard reset won't boot, have to do a second hard reset, if still won't boot, have to boot to safe mode, can't believe this is happening on so many platforms, even till now.

You might want to try (if you haven't already) getting rid of all applications that are not absolutely necessary, and then do a clean install of Yosemite with all of the latest updates.

I use mine for video editing exclusively. Apple's Final Cut Pro, Motion and Compressor plus VLC are all that live there. I never use the mail program or a browser. Updates are downloaded using an ethernet connection. I use my trackpad and a USB mouse and have "wake with bluetooth" disabled.

There have been some issues with external Thunderbolt drives causing a kernel panic when waking. G-Tech have solve the issue with their drives.

I went through the crash-on-wake issue for 3 months. Haven't have a re-occuance since I did the above.

On Apple's side there is nothing to be fixed really (at least in regard of awake from sleep display related issues..).

HDMI, displays in general, are a complicated matter, and small details can be cause of great trouble, like having a motherboard replaced instead of taking care of an old (Mac OS 9, maybe much earlier) useful utility: Colorsync.

So, if the Mac does not have the correct Colorsync profile selected for the external display, things can go havok.

In example, take the iMac. People think that having the Colorsync profile for the internal display would make things work correctly for the external one too.

Instead, when a lcd is connected to a Mac, take a Philips just to use a known name/brand, the very first thing to do, on the very first time it is connected, is to go to System Preferences, and be sure that a Colorsync profile for that monitor appear as listed, in fact it should be called Philips_somecode. If not, it must be on the disc included in the monitor box, and must be manually installed.

In conclusion, once you have the correct profile installed and selected, screen flickering, garbage, artifacts, etc, will have no more means to appear.

Be aware that this works for good when the external monitor is connected directly to the Mac. Whenever a HDMI hub/switch is involved (together with a multitude of new other devices wanting to share or overimpose their own EDID to the monitor) choosing the correct Colorsync profile could involve vodoo magic...

SOLVED!

OMG. after all this it turns out the culprit has been discoveryd, which replaced mDNSResponder in Yosemite. Why discoveryd existed in first place I don't know. Why Apple left it crippling mac networking for nearly a year is an even greater mystery. There is no way the engineers and QAQC people were not aware of this problem through 4 system updates!

REgardless, it's FINALLY FIXED with yesterday's 10.10.4 patch. Apple finally killed discoceryd and returned mDNSResponder. and for the first time EVER since getting this new MacBook I've gone 24hours+ without a wake from sleep crash!!!!!

Apple!!!

What have you done to me!! I didn't have a "freeze upon waking" issue until your most recent update. Now I do. Whatever you did to mitigate this issue for others, you've activated the issue for me.

I have a 2012 Mac Mini with OS X Yosemite 10.10.4. Ironically, or maybe not, Safari has now been acting up ever since that latest update at the end of June/beginning of July.

For the individual who mentioned unchecking the requirement for password upon waking from sleep mode, it doesn't work. The cursor and keyboard are still locked out when Mac Mini goes into deep hibernation and you try to wake it.

Today, it went absolutely bonkers when I tried to wake it from deep sleep. The monitor displayed off and on gray static reminiscent of the old TVs with poor reception and the speakers let off a harsh static fizzing sound. This is frustrating and perturbing, to say the least.

I'm not certain its related to the monitor and speakers, but if it is, my monitor is a recent 27" ASUS and I have an old Dell speaker system attached to the monitor and the monitor attached to the the 2012 Mac Mini via a HDMI cable. It has worked flawlessly since I was up and running this past October 2014. And then the dreaded Yosemite update that ruined it for me.

I'm a recent convert to Apple and I've been extremely pleased and impressed up until now. This particular issue/flaw has gone on too long, in my opinion, and from all the complaints here, the issue resides with Apple engineering, not with us bevy of users all experiencing the same global effect.

Please resolve this issue asap. I don't want to get down on Apple, but if this continues indefinitely, my perception of Apple will be significantly affected.

Thank you in advance for your, hopefully, prompt attention in this matter.

What are you using to wake the Mac Mini?

I have a 2012 Mac Mini Server and have gone through all of the wake crash issues since purchasing in 12/14.

I'm still on 10.10.3.

Apple!!!

What have you done to me!! I didn't have a "freeze upon waking" issue until your most recent update. Now I do. Whatever you did to mitigate this issue for others, you've activated the issue for me.

I have a 2012 Mac Mini with OS X Yosemite 10.10.4. Ironically, or maybe not, Safari has now been acting up ever since that latest update at the end of June/beginning of July.

For the individual who mentioned unchecking the requirement for password upon waking from sleep mode, it doesn't work. The cursor and keyboard are still locked out when Mac Mini goes into deep hibernation and you try to wake it.

Today, it went absolutely bonkers when I tried to wake it from deep sleep. The monitor displayed off and on gray static reminiscent of the old TVs with poor reception and the speakers let off a harsh static fizzing sound. This is frustrating and perturbing, to say the least.

I'm not certain its related to the monitor and speakers, but if it is, my monitor is a recent 27" ASUS and I have an old Dell speaker system attached to the monitor and the monitor attached to the the 2012 Mac Mini via a HDMI cable. It has worked flawlessly since I was up and running this past October 2014. And then the dreaded Yosemite update that ruined it for me.

I'm a recent convert to Apple and I've been extremely pleased and impressed up until now. This particular issue/flaw has gone on too long, in my opinion, and from all the complaints here, the issue resides with Apple engineering, not with us bevy of users all experiencing the same global effect.

Please resolve this issue asap. I don't want to get down on Apple, but if this continues indefinitely, my perception of Apple will be significantly affected.

Thank you in advance for your, hopefully, prompt attention in this matter & please don't delete this again — that's a horrible thing to do and I'll give the benefit of the doubt, but if it gets deleted again, someone's being ridiculously censorious.

I use the mouse and the button on the back of the Mac Mini interchangeably. Before the recent freeze issues since the update to 10.10.4, I always activated it from sleep with the mouse and never any issues.

Have you tried waking with a corded (non-Bluetooth) mouse or keyboard?

Yes, that's what I use — a non-Bluetooth mouse and a Logitech solar-powered keyboard. Both are affected by this freeze-upon-waking issue in addition to the monitor and speakers. Therefore, we know it's not an issue with any one particular peripheral device attached to the Mac Mini. It has to do with the OS X instructions surrounding peripheral devices upon waking from sleep, and whatever Apple engineers did with the latest update (10.10.4) to correct it for some people, it's now created the issue for me, and I suspect I'm not alone. It's exasperating.

Just for ducks....try a corded Apple brand keyboard. If you mouse is not and Apple brand, try one. Only wake with the keyboard.

I received an update today that was Mac Mini (late 2012) specific indicating an updating of firmware for various peripherals malfunctioning upon wake from sleep. Since I've updated, I haven't had the issue. I'll wait and see before I holler success, so I'm knocking on wood right now (my head). I'll return in a couple days with an update about my experience. I'm crossing my fingers but not hoping to die.

Was that an update to 10.10.14? I haven't seen a Mac Mini 2012 specific update yet.

I haven't updated to 10.10.4 because I'm in the middle of a Final Cut Pro X project, and normally don't like to upset the apple cart.

No, it was specifically for the Mac Mini (late 2012) in the header. It wasn't an update to another version of Yosemite, so I still have 10.10.4. It did require a restart but the process wasn't anywhere near as long as a new OS X version update.

"The apple cart." Love it!

Apple, if this works, I'll love you again and not just like you a lot.

https://support.apple.com/kb/DL1828?locale=en_US

I had received a update notice from Apple about my Mac Mini 2012's EFI firmware 1.8 this morning.

After update that EFI firmware, my monitor's sleep not wake problem solved.

Before I solved this problem, I had turned off my DVI monitor's sleep setting in System Preference's Energy Saver for months.