Just for the record: I had Ubuntu 17.10 (upgraded from 17.04 which was upgraded from 16.10) running on my HP Spectre x360 just fine with GDM3 and Unity and when the screensaver kicked in or I locked the screen, it turned to the GDM3 greeter.
A few days ago, I cleared my SSD and installed 17.10 from scratch. But now, when I lock the screen, I see what looks like the LightDM greeter with a red "Authentication failed" message and "Switch to greeter..." where the password input should be. I then have to Ctrl+Alt+F1 to the GDM3 greeter and unlock from there. Why is that? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1311316 Title: After locking screen there is no input field to type password for unlock To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1311316/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs