external Display should be the only Screen (Login + Work) [Solved]

[chrissi55]

I get the following errors in terminal when using this command in konsole

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xrandr --auto && xrandr --output XWAYLAND0 --off

then konsole delivers

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X Error of failed request:  BadMatch (invalid parameter attributes)
  Major opcode of failed request:  139 (RANDR)
  Minor opcode of failed request:  7 (RRSetScreenSize)
  Serial number of failed request:  27
  Current serial number in output stream:  29

So seems to be a xrandr problem first and that why the settings seems not to work on boot.

Can someone help me to understand this X Error code?

[chrissi55]

Finally i got it working !

I switched from the login screen from wayland to x11 for one boot.

xrandr | grep connected delivers complately different names of the connected displays than under wayland!

So i tested from the command line the following

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xrandr --output eDP-1 --off 

worked!

So i edited the /usr/share/sddm/scripts/Xsetup file as follows

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#!/bin/sh
# Xsetup - run as root before the login dialog appears 
xrandr --output HDMI-1 --primary --auto
xrandr --output eDP-1 --off
exit 0

that worked under x11 session!
Then i switched back to session type wayland and voila it worked for wayland as well.

on top i could use a script as follows (but that's a nice to have later ...)
https://forum.garudalinux.org/t/display ... ation/4526