@joekamprad said in How to logout from the LightDM greeter (or anywhere)?:
Bootloader (grub/systemdboot) --> DM (Desktop-Manager aka. Login-Manager) --> DE (Desktop Environment)
thats how bootup works…
OK. So I recognize grub. And then on a cold boot I see a single line in the center of a black screen asking for my password, no choice of user. And then my Cinnamon icons fill in along the bottom of the same screen.
I’ve identified the white window with the huge time display. According to lots of web posts, it is the WebKit2 Greeter, which apparently runs in LightDM:
A display manager, or login manager, is typically a graphical user interface that is displayed at the end of the boot process in place of the default shell. There are various implementations of display managers, just as there are various types of window managers and desktop environments.
GDM — GNOME display manager.
https://wiki.gnome.org/Projects/GDM || gdm
LightDM — Cross-desktop display manager, can use various front-ends written in any toolkit.
https://www.freedesktop.org/wiki/Software/LightDM/ || lightdm
The Light Display Manager (LightDM)
LightDM is a cross-desktop display manager. A display manager is a daemon that:
Runs display servers (e.g. X) where necessary.
Runs greeters to allow users to pick which user account and session type to use.
The core LightDM project does not provide any greeter with it and you should install a greeter appropriate to your system. Popular greeter projects are:
Not a clue about how to use it, that I can find…
I never see this “(Desktop-Manager aka. Login-Manager)” or its fancy screen background during a normal boot. I’m guessing grub -> some password grabber function in Cinnamon -> Cinnamon.
But that isn’t my issue. My question was how to logout. The only route I noticed yesterday was Menu -> [users icon] -> [white dialog with time]. That Menu just got completely revised in the last batch of updates, and the icons are now so abstract they are hard to understand. I just poked all the other icons there, and discovered the meaningless rectangle to the right must be a door with an arrow. The tiny text prompt in the bottom corner says “logout”.
I can use the greeter to login as another user, and it switches to their Cinnamon environment. But I can’t find any way to logout from any of the accounts there. Guess I’m expecting too much. But that icon to the right of the password field sure looks to me like it would mean the same thing as the other logout icon.
gazp9 webkit3 greeter crop.jpg (I can’t find any way to get a real screen capture…)
Aesthetics and expectations aside, the greeter still ignores touchpad taps. I wonder who of the many people involved could fix that…