Wrong resolution on login screen on kde plasma

I have a problem with my login screen on boot.
I have two monitors 1 - laptop screen (max 4k res)
2 - HDMI monitor (max 1080p)
But currently I use 1440x900 on both of them.
When I boot up my Laptop screen switches to 4k and my HDMI screen switches to 1080p and I see like only a top right corner of the 4k screen. Is there a way to force a different resolution on boot?
Every idea appreciated. :blush:

1 Like

Have you found a solution? Iā€™m also having the same issue.

You are not alone, it is known issue.

There is the solution:

Other solution to disable the secondary monitor at login screen.

  • Edit sudo nano /usr/share/sddm/scripts/Xsetup
# Xsetup - run as root before the login dialog appears

xrandr --output HDMI-0 --off

HDMI-0 may not be correct, just look what is output of display: xrandr