Unable to login to LM -> Mirror monitor outputs instead of spanning until a successful login is made

[Ecclaseus]

Hi all. Picking up Linux again after many years and love what you've done with the place. Quick bug squashing report and a suggestion to offer that I hope will help normies move over from other operating systems.

Just installed LM and everything seemed to go well. The LM background appeared on my screen but there was no login option available. No mouse cursor. No login/password. Nothing but the background image. Googling, I got into the TTY terminal and sudo'd around just fine: the Linux engine was clearly running. I tried reinstalling the GUI, confirming equivalence to the version on the mirror, etc. It was as if everything was going great but there was just no option to login to the GUI.

I then found my mouse cursor after aimlessly tracking it around. And if I moved it off a certain direction, not only would it disappear but that in certain directions off the monitor's field, moving my mouse 2x times as far away from my monitor made it take an equivalent amount of displacement to bring it back. And then I figured it out: my main monitor wasn't being used as the primary monitor but my big TV was the primary instead. Sure enough, I turned my TV on and turned its input to the graphics card on my computer and there was the login screen right there.

Suggestion for LM devs: until a successful login, mirror (do not span) monitor outputs across all monitors. I'll leave it to you to figure out how to make which monitor should be primary thereafter. (One idea, since I came over from Windows: if LM detects that someone is trying to login using Ctrl-Alt-Del when the login prompt is right there (on another monitor), maybe trigger a mirroring of all outputs across all monitors as well?)

Proud Patreon of LM. Thank you all for doing what you are doing to help normies make the migration.

BCH