The login screen is handled by the display manager (DM). Linux Mint Cinnamon (not sure if you're using that) uses lightdm with the slick greeter by default.
Here are two links with different solutions:
https://wiki.archlinux.org/title/LightDM#Multiple-monitor_setup you can get the settings you have from running the command xrandr without any options or using arandr as described in the other link.
xrandr
https://forums.linuxmint.com/viewtopic.php?t=360800 Here I would tweak it a bit and not use chmod 700, but instead use chmod 744.
chmod 700
chmod 744
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The modern version of a henway
The login screen is handled by the display manager (DM). Linux Mint Cinnamon (not sure if you're using that) uses lightdm with the slick greeter by default.
Here are two links with different solutions:
https://wiki.archlinux.org/title/LightDM#Multiple-monitor_setup you can get the settings you have from running the command
xrandrwithout any options or using arandr as described in the other link.https://forums.linuxmint.com/viewtopic.php?t=360800 Here I would tweak it a bit and not use
chmod 700, but instead usechmod 744.