I have the same setup (EndeavourOS / KDE plasma 6 / Wayland / SDDM / 2 monitors) and had the same problem. The worst thing is that typing the password in the “active” login prompt (the one with the focus) wasn’t working anyway, so I had to use the mouse to give focus to the other monitor first, and then type the password. Absolutely annoying.
The solution I found (sorry I forgot where, some forum) is to disable all the detected monitors except one in /usr/share/sddm/scripts/Xsetup. Basically your secondary monitor will not get any signal until you type the password and log in. At that point any other monitor will be reactivated automatically.
Check out the output of xrandr in Wayland on my system:
$ xrandr | grep ' connected'
DP-1 connected primary2560x1440+0+0 (normal left inverted right x axis y axis) 590mm x 334mm
DP-2 connected 2560x1440+2560+0 (normal left inverted right x axis y axis) 590mm x 334mm
DP-1 and DP-2 are the names used by Wayland, but they don’t work in Xsetup because X11 calls the ports DisplayPort-0 and DisplayPort-1 - and I don’t remember if HDMI ports are also called differently.
So you need to log in X11 first, get the names with xrandr, create or update Xsetup and reboot.
I have the same setup (EndeavourOS / KDE plasma 6 / Wayland / SDDM / 2 monitors) and had the same problem. The worst thing is that typing the password in the “active” login prompt (the one with the focus) wasn’t working anyway, so I had to use the mouse to give focus to the other monitor first, and then type the password. Absolutely annoying.
The solution I found (sorry I forgot where, some forum) is to disable all the detected monitors except one in
/usr/share/sddm/scripts/Xsetup. Basically your secondary monitor will not get any signal until you type the password and log in. At that point any other monitor will be reactivated automatically.This is my Xsetup:
#!/bin/sh xrandr --output DisplayPort-0 --mode 2560x1440 --pos 0x0 --rotate normal xrandr --output DisplayPort-1 --off xrandr --output HDMI-A-0 --off xrandr --output HDMI-A-1 --offIMPORTANT
Check out the output of
xrandrin Wayland on my system:$ xrandr | grep ' connected' DP-1 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 590mm x 334mm DP-2 connected 2560x1440+2560+0 (normal left inverted right x axis y axis) 590mm x 334mmDP-1 and DP-2 are the names used by Wayland, but they don’t work in Xsetup because X11 calls the ports DisplayPort-0 and DisplayPort-1 - and I don’t remember if HDMI ports are also called differently.
So you need to log in X11 first, get the names with xrandr, create or update Xsetup and reboot.