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drxcm

macrumors regular
Original poster
Nov 2, 2010
243
71
Hi,

Just updated my M1 iMac to Monterey.

I’m getting this after a restart.
Goes away after logging in

Any suggestions?
 

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Woah! Never seen anything like that. Try restarting it again. If that doesn't work, try reinstalling macOS via "Erase All Content and Settings," and if that doesn't work, completely wipe the drive from Recovery and reinstall.
 
Restart makes no difference.
Definitely not going to reinstall everything- far too much work!
 
Ok so if logout the white area comes back and as soon as I login it goes. Lock screen doesn’t look abnormal.

Weird
 
If the restart doesn’t help, go through the following troubleshooting methods to fix the error:

1. Boot your mac in safe mode
2. Reset SMC (System Management Controller) settings
3. Reset NVRAM/PRAM
4. Repair hard drive using disk utility’s first aid
5. Reinstall macOS

Hope it helps!
 
You can not reset PRAM/NVRAM on an M1 Mac. Also, you can not reset the SMC on an M1 Mac, as they don't have SMCs.

I've already had this discussion with the OP, and they said it's too cumbersome to reinstall macOS.

So, @drxcm, run Disk Utility First Aid inside recoveryOS - see if that works.

This is a bit of a tricky situation here - some posters are posting things that the OP has already tried that didn't work, such as restarting. But I have to say that the OP should not be hindered by "not wanting to do something." If that fixes the issue, then great, but you sometimes have to do something you don't want to do to fix a problem!
 
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Do you have any remote controlled software installed that allows another computer to connect? Certainly Jump Desktop Connect causes funny things on my login screen at times, mainly the the user names shifted to the side.

This is a stretch since you probably have File Vault turned on, so no deamon would be running prior to first login after reboot.

Notice that the login field and buttons are centered and that the picture is actually cropped on the left (I just checked that desktop image to notice the missing portion). It's almost as if that image has been corrupted on disk.
 
Woah! Never seen anything like that. Try restarting it again. If that doesn't work, try reinstalling macOS via "Erase All Content and Settings," and if that doesn't work, completely wipe the drive from Recovery and reinstall.
You must be a Windows refugee.
 
Have you tried something simple like changing the login wallpaper to something else to see if the same problem occurs with a differernt wallpaper? Or perhaps create another user and see if the same thing happens for them.
 
Have you tried something simple like changing the login wallpaper to something else to see if the same problem occurs with a differernt wallpaper? Or perhaps create another user and see if the same thing happens for them.

Interesting idea. It got me thinking....

I remember reading a post on these forums that said the wallpaper used before first login is found on the system volume, so it can't be changed. However, assuming the OP has File Vault turned on, the wallpaper displays before the encrypted system volume is even available. So, maybe a version of the wallpaper is bundled up in some way so that it can be presented before the volume is available. Perhaps disabling file vault and reenabling it could rebuild that image.
 
Have you tried something simple like changing the login wallpaper to something else to see if the same problem occurs with a differernt wallpaper? Or perhaps create another user and see if the same thing happens for them.
yup no change
 
Do you have any remote controlled software installed that allows another computer to connect? Certainly Jump Desktop Connect causes funny things on my login screen at times, mainly the the user names shifted to the side.

This is a stretch since you probably have File Vault turned on, so no deamon would be running prior to first login after reboot.

Notice that the login field and buttons are centered and that the picture is actually cropped on the left (I just checked that desktop image to notice the missing portion). It's almost as if that image has been corrupted on disk.
no such software, no file vault, nothing in login apps etc
 
You can not reset PRAM/NVRAM on an M1 Mac. Also, you can not reset the SMC on an M1 Mac, as they don't have SMCs.

I've already had this discussion with the OP, and they said it's too cumbersome to reinstall macOS.

So, @drxcm, run Disk Utility First Aid inside recoveryOS - see if that works.

This is a bit of a tricky situation here - some posters are posting things that the OP has already tried that didn't work, such as restarting. But I have to say that the OP should not be hindered by "not wanting to do something." If that fixes the issue, then great, but you sometimes have to do something you don't want to do to fix a problem!
I will try. A full reinstall is not worth my time / effort as everthing else is working fine and I have a mountain of plugins (its an audio computer) that would need reinstalling and authenticating!
 
yup no change
When you say no changes does that mean that a different wallpaper shows the same white area on the left but with the different wallpaper, or that the wallpaper itself just stays the default Monterey wallpaper with the white area on the left in the image?
 
I found the thread that says you cannot change the lock screen wallpaper:


I haven't confirmed this and really have no experience playing with it.

The lock screen wallpaper is different than an individual user's selection of wallpaper. Each user on the computer could make a different selection for that. The lock screen wallpaper is independent of the user and is not affected by the selection made in System Preferences.
 
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