Ubuntu login screen wallpaper switches to match user wallpaper now. How to disable?
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How do I return to default wallpaper on login screen in LightDM?
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Login Screen Before OS Loads?
112564
How to set all the backgrounds transparent so that the home screen could be seen?
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How do I make the login screens and boot splashes match when installing different desktops?
124740
How do I disable the blank console "screensaver" on Ubuntu Server?
149100
How can I disable the purple splash screen at boot?
103548
How to enable fast user switching when Login Options are disabled?
88336
Change the background of the login screen
156454
How to enable auto change wallpaper in unity in ubuntu 13.04?
130759
Windows 8 Setting an image on the login screen
141671
How to restrict users on changing their wallpapers?
67757
How do I disable "modern login items" (shared helper applications) which don't show up in system login items?
46973
Cannot change login screen background in 18.10
107912
Windows 8 logon screen background
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How do I change to a theme not listed in the Appearance screen?
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Automatically change Ubuntu wallpaper at a certain hour
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Login screen resolution