I'm running Zorin OS 18, fresh install, dual boot with Windows 10.
I have installed Cinnamon per directions in another post. It also recommended using lightdm rather than gdm, so I installed and when prompted chose lightdm.
But I could not find a menu drop down on the login screen to select Cinnamon and when I tried to login with whatever was selected (I presume Gnome), it could not find a valid session.
So I removed lightdm and got the system back up with gdm. There is still no menu drop down to select Cinnamon.
Suggestions on how to get Cinnamon running are what I'm looking for.
GDM hiddes the prompt for selecting another DE, whereas on LightDM, it is listed in the upper right corner - which is probably why you did not see it.
You are used to looking center screen.
LightDM has an actual toolbar where the selection is marked by the DE Icon.
In point of fact, I did look in the upper right corner and checked all the choices. None mentioned either Cinnamon or Gnome, which is what I would expect from experience with other Linux distributions.
And appologies for failing to mention this in the first post.
What method did you use to install cinnamon?
(I would stick with LightDM, since it is much easier to use and navigate and is not prone to crashing like GDM).
OK, results are in. I found that with gdm, if I click on the username to get to the password entry page, a gear icon appears in the lower right. Clicking it got me to the menu with various options. Chose Cinnamon and logged in just fine.
One extra piece, how do I get lightdm back as my dm? I edited /etc/X11/default-display-manager to point to /usr/sbin/lightdm but that did not have the expected result. Is there a systemd related process I need to follow?
And I just did what I should have done before asking the systemd question. Web search has provided the steps needed to disable gdm and enable lightdm in systemd.
