Disable Login Screen background transparency thing

[iJny9956]

i just want a clean login, without pictures or anything. is there a way to disable images on login screen?

 

[bmac89]

i just want a clean login, without pictures or anything. is there a way to disable images on login screen?

Not sure whether you can disable it as such. Maybe there is a secret terminal code out there?

However a sort of workaround may be to enable 'filevault' which encrypts all your files and data, and I believe as a consequence disables the login background. However it can take a long time to encrypt everything and time machine backups are handled a bit differently.

Maybe someone else can be of more help.

 

[NoBoMac]

If I recall Onyx has some login screen setting.

Loginox used to work for Mavericks: maybe dig through the binary to find what files it changes and see if those files are still in-use.

In settings, can change login type from icons (username specified with spot for avatar) to text boxes where you have to enter username and password.

Filevault will give a grey screen, but you get the icon logins.

And don't think lock screen or screen after sleep will be "blank": will get blurred wallpaper and or blurred default Yosemite wallpaper (seems like that might be a semi-regular occurring bug).

 

[bmac89]

If I recall Onyx has some login screen setting.

Loginox used to work for Mavericks: maybe dig through the binary to find what files it changes and see if those files are still in-use.

In settings, can change login type from icons (username specified with spot for avatar) to text boxes where you have to enter username and password.

Filevault will give a grey screen, but you get the icon logins.

And don't think lock screen or screen after sleep will be "blank": will get blurred wallpaper and or blurred default Yosemite wallpaper (seems like that might be a semi-regular occurring bug).

I had a look at Onyx and it does have a login screen setting, however this feature is not available in the Yosemite version.

I checked in Snow Leopard and the login background can be changed using Onyx or manually at "System > Library > Core Services > DefaultBackground.jpg"

However I could not do the same in Yosemite.

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i just want a clean login, without pictures or anything. is there a way to disable images on login screen?

Also you can change your desktop image to 'solid colour' in System Preferences which will make the login screen a solid colour similar to Mavericks.

 

[iJny9956]

I'm the admin on the mac and there a 4 standard accounts. the login only defaults to whatever wallpaper I set under my login, thats why its annoying. theres gotta be a way to disable and just keep a solid grey.

 

[bmac89]

Possible Solution

I'm the admin on the mac and there a 4 standard accounts. the login only defaults to whatever wallpaper I set under my login, thats why its annoying. theres gotta be a way to disable and just keep a solid grey.

Through some trial and error I have discovered a possible solution!

As I said before, if you set your desktop wallpaper to a solid colour (grey if you like), it will then make the login window a solid colour too (like Mavericks)

However if you don't really want to be looking at a boring solid grey desktop and still want to have the full effect of transparency in the sidebar etc then follow the steps below:

Firstly make sure you have set the desktop image you want as your default wallpaper.
Then go into mission control and make sure there are more than 1 desktops available - Make however many you want.

Now go back into mission control choose desktop 1 and change the wallpaper to solid colour (grey). This should change just this wallpaper (and any new desktops you add), but not any of the other ones you have already made.

Now drag desktop 1 (grey) to the end. Now switch desktops and enjoy your wallpaper while also having a plain login window.

I have tried this myself and restarted the computer to make sure it sticks. The only exception is when quick switching between users you may get a transparent image. However when switching to Login Window or at startup the login window remains solid grey.

I hope this is of help. Let me know how it goes.

 

[bmac89]

How to change / disable login window image

i just want a clean login, without pictures or anything. is there a way to disable images on login screen?

Not sure if you are still trying to achieve this. The method below works and is probably more permanent / satisfactory then the instructions I gave above. You can use solid colour/grey or even non-blurred image for login window without effecting your desktop wallpaper.

Thanks to user: jimmyj3rd who posted this in the following thread https://forums.macrumors.com/showthread.php?p=20545092#post20545092

In the process of building a custom OSX 10.10 image I found the following to work for setting custom login background, prevent users from changing it.

1. Replace /Library/Caches/com.apple.desktop.admin.png with custom png background. Could also rename original file to hold onto.

2. Log off or reboot to make sure new file is being used.

3. Log back in and then Lock the file running terminal command:

sudo chflags uchg /Library/Caches/com.apple.desktop.admin.png

Done.

If you don't lock it, when user changes their desktop background it will replace the com.apple.desktop.admin.png file with a blurred version of their desktop background

If you want to unlock the file run:

sudo chflags nouchg /Library/Caches/com.apple.desktop.admin.png

On previous versions of OSX I had run into issues with the OS using my custom PNG files created from Adobe Photoshop (Likely do to how i saved them), so I typically just open my custom png or jpg images in Apple Preview app and do an export to PNG, resolved that issue. If you run into issue might be worth doing.

Hope this helps someone.

 

[iJny9956]

Yes!!!! This is it thank you. Took a long time for me to see it.