Apple Event: May 7th at 7 am PT
After upgrading to 10.12.4 yesterday, I'm getting a weird display sleep issue with my iMac 5K. If Energy Saver turns my displays off (set for 15 minutes), the iMac display won't come back on without a reboot. Strangely, my external Dell 4K Monitor will come out of sleep.
Super annoying. Silly bug.
iMac with Retina 5K display, macOS Sierra (10.12.4)
unfortunately, my issue has not gone away. My system still does not go to sleep, and when I manually pu tit to sleep, does not wake up so I have to reboot.
Those of you who have a Retina iMac and who have upgraded to High Sierra: Is anyone still having the issue?
It sounds like others with MacBook Pro might still have a different, similar issue.
I have a 27" 5K iMac with 2 flanking 28" 4K displays and the issue is gone. Since the upgrade to High Sierra, I have not had the problem. Fingers crossed that it stays this way!
I upgraded about a week ago and plugged my second monitor in once more. So far the issue has not returned. Previously it was happening every few days.
My problem went away when parallels issued a patch.
10.12.4 display sleep bug
