Here's the supposedly final solution: (sudo) apt-get install lightdm-settings slick-greeter
and then killall -HUP mate-panel "Login Window" will automagically appear in the "Administration" section of "Control Center". Thanks @ubucolors for confirming it was a matter of something no more available. ** Attachment added: "The Control Center as expected" https://bugs.launchpad.net/ubuntu-mate/+bug/1970081/+attachment/5609683/+files/Screenshot%20at%202022-08-18%2018-39-14.png -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1970081 Title: The background image of the login window cannot be changed Status in Ubuntu MATE: New Status in arctica-greeter package in Ubuntu: Confirmed Status in lightdm package in Ubuntu: Confirmed Bug description: After upgrading from Ubuntu 20.04 Mate to 22.04 Mate, my custom wallpaper was replaced with the default one. I can make a change via the menu, but it stays with the default background image. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-mate/+bug/1970081/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
