Hi all!
I have a 2014 Mac Mini running High Sierra. Yesterday it randomly started not waking up from sleep. I had to force restart several times throughout the day (by pushing the power button), and it would start up fine (giving the "your Mac was shut down because of a problem, would you like to reopen the programs that were running, etc" message upon start up). This morning, again, it wouldn't wake from sleep. Instead of doing a simple force restart, I figured I'd try an SMC reset while I was it, to see if the issue would be fixed (force powered off... unplugged for 15+ seconds, plugged back in, waited 5 seconds, turned on). The Apple loading screen took foreverrrrr to "load" and then stayed stuck with the bar at 100% for a good chunk of time. I forced shut down, tried to open in Safe Mode, would not load at all... tried to open in Recovery Mode, would not load at all. Almost kind of started crying, tried an NVRAM reset, and it then started up fine! Fast forward a couple hours, lunch time, left the computer, came back and it was sleeping... again, wouldn't wake. Forced shut down, again it would stay on the loading screen forever. Reset the NVRAM, and it worked.
Any ideas? This is driving me crazy. I (think) I've now managed to successfully set the computer to just not sleep at all, which is the only "solution" I can think of for now.
The only weird thing that has happened lately, a couple days ago: I have a dual-monitor set up, and the other day upon waking from sleep, the resolution on my secondary display was way off. The only option display preferences would give me other than "default for display" (with huge icons/really bad resolution) were 800x600 (same as default) and 1200xsomething which stretched everything really wide. I messed around with the cables for both displays, switched which port each one plugged into and everything looked great, except my primary monitor was now the secondary one. I figured switching the cables back to each of their original ports would switch them back... it didn't, but then I found the option to just drag the menu bar in Display Preferences to choose the primary monitor. So that was all weird/different, and I don't know why the resolution got messed up in the first place, but everything looks and works like normal now, as long as the Mini doesn't sleep... I don't know if there might be some related display issue.
NEXT-DAY EDIT: Last night I decided to shut down the Mini instead of having it sleep, hoping to avoid the issue. I just turned it on and the same exact thing happened... black screen with white loading bar, goes to 100% and just stays there. I forced shut down, reset NVRAM, and it started up fine. So basically:
---- Mini won't wake from sleep (I accidentally put it to sleep manually twice yesterday (command+option+eject) and immediately said, "ah, no!!! Don't sleep!" hit the spacebar a few times and it woke up fine, but I don't think it had even fully slept yet.
---- Mini ONLY starts up after an NVRAM reset.
I read something about NVRAM resets working similar to safe mode, where it doesn't load third-party drivers and the such until after start up? I have no clue how to proceed though...
Thank you all in advance!
I have a 2014 Mac Mini running High Sierra. Yesterday it randomly started not waking up from sleep. I had to force restart several times throughout the day (by pushing the power button), and it would start up fine (giving the "your Mac was shut down because of a problem, would you like to reopen the programs that were running, etc" message upon start up). This morning, again, it wouldn't wake from sleep. Instead of doing a simple force restart, I figured I'd try an SMC reset while I was it, to see if the issue would be fixed (force powered off... unplugged for 15+ seconds, plugged back in, waited 5 seconds, turned on). The Apple loading screen took foreverrrrr to "load" and then stayed stuck with the bar at 100% for a good chunk of time. I forced shut down, tried to open in Safe Mode, would not load at all... tried to open in Recovery Mode, would not load at all. Almost kind of started crying, tried an NVRAM reset, and it then started up fine! Fast forward a couple hours, lunch time, left the computer, came back and it was sleeping... again, wouldn't wake. Forced shut down, again it would stay on the loading screen forever. Reset the NVRAM, and it worked.
Any ideas? This is driving me crazy. I (think) I've now managed to successfully set the computer to just not sleep at all, which is the only "solution" I can think of for now.
The only weird thing that has happened lately, a couple days ago: I have a dual-monitor set up, and the other day upon waking from sleep, the resolution on my secondary display was way off. The only option display preferences would give me other than "default for display" (with huge icons/really bad resolution) were 800x600 (same as default) and 1200xsomething which stretched everything really wide. I messed around with the cables for both displays, switched which port each one plugged into and everything looked great, except my primary monitor was now the secondary one. I figured switching the cables back to each of their original ports would switch them back... it didn't, but then I found the option to just drag the menu bar in Display Preferences to choose the primary monitor. So that was all weird/different, and I don't know why the resolution got messed up in the first place, but everything looks and works like normal now, as long as the Mini doesn't sleep... I don't know if there might be some related display issue.
NEXT-DAY EDIT: Last night I decided to shut down the Mini instead of having it sleep, hoping to avoid the issue. I just turned it on and the same exact thing happened... black screen with white loading bar, goes to 100% and just stays there. I forced shut down, reset NVRAM, and it started up fine. So basically:
---- Mini won't wake from sleep (I accidentally put it to sleep manually twice yesterday (command+option+eject) and immediately said, "ah, no!!! Don't sleep!" hit the spacebar a few times and it woke up fine, but I don't think it had even fully slept yet.
---- Mini ONLY starts up after an NVRAM reset.
I read something about NVRAM resets working similar to safe mode, where it doesn't load third-party drivers and the such until after start up? I have no clue how to proceed though...
Thank you all in advance!
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