Ok, I solved the problem with Virtualbox and could complete the test according to comment #10
I'm happy to tell that is was NOT reproducable, in that way anyway. That must mean that it is my system that is broken, not the xfce or lightdm components. And of there where problems with the packages I installed during the upgrade, they seems to have been patched already. I will thank you for taking your time. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1288075 Title: Xubuntu lightdm: Wrong wallpaper at login screen. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xfdesktop4/+bug/1288075/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs