iMac won't "wake up"

Question

iMac won't "wake up"

Why isn't my iMac "waking up" from sleep mode. I'm having to hold the start button to force the iMac to shut down and then restart my iMac... what is going on? Two weeks ago I had Apple replace the disk drive with a new Flash (SSD) drive. It has worked great until yesterday when it wouldn't wake up and now today it wouldn't wake up either and I had to go through the forced shut-down and restart. I now have moved the energy saver to "display never turns off", but I don't like this as a long term solution. Any ideas?

Posted on Jan 1, 2020 6:49 AM

Reply

Answer 1

den.thed

Level 10

90,874 points

Jan 1, 2020 9:40 AM in response to mikemalenfant

If you are using wireless devices to try and wake the iMac, then you may just need to go to: Apple > System Preferences > Bluetooth > select the Advanced... button and check Allow Bluetooth devices to wake this computer.

Reply

Answer 2

rkaufmann87

Level 10

148,446 points

Jan 1, 2020 7:44 AM in response to mikemalenfant

Apple will not replace the original HD with a SSD! You must have take the computer to either an independent Apple Authorized Service Provider or another typeof shop. I gave up on Sleep years ago and use the Energy Saver - Display Sleep setting. This works and has the same net effect as setting the computer to sleep.

Reply

Answer 3

rkaufmann87

Level 10

148,446 points

Jan 1, 2020 9:24 AM in response to mikemalenfant

Set Computer Sleep to Never and then set Display Sleep to the setting you desire. This will work much much better.

Reply

Answer 4

macjack

Level 10

111,242 points

Jan 1, 2020 9:30 AM in response to rkaufmann87

I completely agree with rkaufmann. I gave up on the Sleep function years ago. Ever since the inception of OS X there have been Sleep related issues. And even more lately. I just use Display Sleep and keep it set for 15 minutes so I'm not burning the screen. That way your Mac uses very little power over Sleep and is ready to use at the touch of a key without any grogginess. UNIX based systems were made to be always on and they’ve been running busy servers 24/7 for decades.

Reply

Answer 5

Jan 1, 2020 8:28 AM in response to rkaufmann87

Yes I had it done by an apple authorized service provider. I set the display sleep to never and I'll see what happens.

Thanks

Reply

iMac won't "wake up"

Similar questions