Hello,
as from Catalina 10.15.4 my Mac starts with the official Catalina wallpaper, then reverts to black background (my selection).
How to disable the Catalina picture or to replace it with a pure black background or with a black wallpaper.
MacBook Pro Retina
Hi VAD.,
Thanks for coming to Apple Support Communities for help today with your Catalina wallpaper. It sounds like you see the official wallpaper when your computer boots up and then it reverts to your custom black wallpaper. What you have described is expected while the system boots up. You can leave feedback here: Product Feedback.
Have a fantastic day!
I did a search and found a lot of nonsense; from breaking in into the read only disk partition to different command lines but also a lot of complains of system instability or bootup crashes after the above mentioned changes....
Apple says about login window
At the login window, enter your user account password to log in to your Mac. If FileVault is turned on, this also unlocks your disk. You might see a default desktop picture in the background, which might change to your chosen desktop picture when you select your account.
I say that default on my computer is what I want and not what Apple wants!
Thank you for reply Chris,
I'm aware of this feedback page but I doubt that someone at Apple is reading the feedback reports or taking seriously the reported issues.
Best
Do a Google search for "change login screen Catalina".
Hi Chris,
I'm back with my question.
The 10.15.5 fixed the problem, but the supplemental update broke the setting down, this ugly Catalina island picture is again on my login screen!!!
Catalina start up wallpaper
