> It depends on the hardware/graphics. Sure, no. I tested and have this issue on home PC (16.04.3 after latest Unity update, AMD Phenom CPU/Nvidia GPU), work PC (17.10, Intel i7/Intel), Lenovo flex laptop (17.10, intel i5), and of course in VirtualBox (16.04.3 fresh install with latest updates, 18.04).
> But as I said, I can't reproduce it on bionic (bionic has different unity/lightdm version). Can you reproduce it in a live iso? Not tried live iso, but I have test box with up-to-date 18.04. Just two days ago I tried: Added second user account; sudo apt install unity-session lightdm sudo apt purge ubuntu-session gnome-shell gdm3 Reboot, login as first user, start second user session, end session, return to first user session, lock screen - issue here. Bionic live iso does not have unity and lightdm preinstalled, so them will be downloaded from repository anyway. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1733557 Title: Login screen showing Authentication Failure Switch to greeter... To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1733557/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
