Anyone having an issue with iMac dimming, entering sleep mode then waking up after a second or two? Seems like this happened after the latest Big Sur update but I can't be sure. I use logitech MX Keys and mouse for Mac but they are connected by the dongle, not blue tooth. For the life of me I can't figure out what is keeping it from sleep mode. Thanks.
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No Sleep
- Thread starter JCage
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chscag
macrumors 601
Have you tried resetting the SMC? Sleep/Wake is a power function controlled by the SMC. Resetting the SMC on an iMac is easy, just follow Apple's instructions:
How to reset the SMC on Mac desktop computers
How to reset the SMC on Mac desktop computers
- Choose Apple menu > Shut Down and wait for your Mac to shut down.
- Unplug the power cord.
- Wait 15 seconds.
- Plug the power cord back in.
- Wait 5 seconds, then press the power button again to turn on your Mac.
Still not sleeping properly. Tries the SMC. Very strange. 2020 iMac 27inch latest iOS.
Last edited:
This is a Logitech issue. Logitech has a beta Options + and it is the culprit. Once I deleted the beta and reinstalled the old Logitech Options, problem went away.