Multiple Displays: Defective, as Logon not Possible

[estander]

Zorin 18 Core
3 Monitors (1 - Builtin Laptop monitor; 2 x External Monitors via Dock)

Builtin Monitor is set to "Off" within Zorin.
Every time you start the laptop, you are faced with two 'blank' screen, as Monitor 1 (built-in monitor) laptop lid is closed, but Zorin sees it as Monitor 1 to the left of all Monitors, meaning you cannot see the logon screen.
You have to take the laptop out of it vertical stand, open the lid, then logon.
After you have logged on, you will see all three monitors

Confirming Monitor 1 is Off

You can now close the lip of the laptop, as it went 'dark / off'.
At this point the Monitor 1 (built-in) goes 'off' and the two external monitors are the only one listed.

As you can imagine this makes using Zorin very unpleasant.

I also tried to switch from Wayland to Xorg. It makes no different.

Is this fixable?

[Forpli]

You could take a look at this thread to see if it can help you.

Dual Monitor & Startup/Login Screen

Hi Everyone, I have Zorin OS 18 and my PC is connected to 1 PC Monitor (Monitor 1) and one LG TV Oled (Monitor 2). Obviously, the TV is often shut down and I mostly work from the PC monitor. For some reason, at login, the invite to add enter my password is always on the screen #2 (TV) vs. the screen #1 (monitor). Does someone know how to change this? I tried to deactivate the second screen from the monitor settings (when logged in), but at login, the invite to type the password stills shows u…

[estander]

Thank you very much. That worked.
I ran the following from a terminal:
sudo cp ~/.config/monitors.xml /var/lib/gdm3/.config/

Then rebooted.

Seems to be working fine now.
Thank you