AccountsService file: Background=/usr/share/xfce4/backdrops/xubuntu-wallpaper.png
Lightdm uses this value as user's background at login screen. But AccountsService do not support color as "Background" value. When you change your background to black color the old value is not updated. And you will see your old wallpaper at login screen. Just remove this line or change your wallpaper to desired image. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393846 Title: Screen Lock shows wrong wallpaper To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1393846/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs