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sonoma will not let my IMac sleep for more that 3 minutes. cannot change wallpaper or screen saver. everything init. is really slow now. anybody else having the same problems

installed macos yesterday on my imac 1tb disk, 545 free.

computer will not sleep for more than 3 minutes

have a grey screen for wallpaper, will not let me change through sys pref wallpaper or screen saver

takes a long time to ipl

iMac 21.5″, macOS 14.0

Posted on Oct 5, 2023 4:37 PM

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Question marked as Best answer

I too have problems with a grey wallpaper and screen saver. I only saw the wallpaper briefly when I restarted. I am in safe mode now and still have a grey screen. My typing froze! Turned off all of the Safari extenions and was able to type again. My extensions work well before Sanoma.

Posted on Oct 6, 2023 7:20 AM

7 replies

Oct 6, 2023 6:47 AM in response to tominsj

tominsj wrote:

installed macos yesterday on my imac 1tb disk, 545 free.
computer will not sleep for more than 3 minutes
have a grey screen for wallpaper, will not let me change through sys pref wallpaper or screen saver
takes a long time to ipl



Have you completely shut down and restarted more than once sinnce you upgraded to sort anomalies...



Log out, sleep, wake, restart or shut down your Mac

Shut down or restart your Mac - Apple Support


Oct 8, 2023 9:04 AM in response to tominsj

My iMac 2019 is doing the same. Upon reboot, the Lock Screen appears with my desktop wallpaper but as soon as I enter my user name and password, it goes black while it builds my desktop. Desktop icons, menu bar and dock come back but not the wallpaper jpeg I have set. Just black..


Until Apple fixes this, this will make work.


Open Terminal.

Write: killall Dock


And your set wallpaper will be restored.

Nov 6, 2023 4:32 PM in response to tominsj

Just updated to Sonoma last week. My Mac mini would not go to sleep. Call Apple support three times. They couldn't figure it out. I am not a computer expert but figured out that with wifi off it will sleep. No big deal for me as I am on ethernet. It also doesnt sleep if I have something powered in the USB. They need to fix this bug.

sonoma will not let my IMac sleep for more that 3 minutes. cannot change wallpaper or screen saver. everything init. is really slow now. anybody else having the same problems

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