Remote login in SDDM

Hello everyone,
I am preparing the change of my current DE from Gnome to KDE Plasma. By now I have managed to get everything running as expected - except one thing: the remote login in SDDM.
In my Gnome environment with lightdm as DM I have TigerVNC together with XDMCP which is working fine using Remmina from the remote site.
As SDDM does not have XDMCP support build-in I am looking for a similar way. My research in the Arch wiki and the internet pointed to some XVNC or TigerVNC howtos, but none of them worked for me. Either I did not manage to get the SDDM screen or after the login to KDE Plasma I only got a black screen.

Does someone has a running remote login to SDDM?
Any hint would be appreciated.

Hello @marteng69 ,
Maybe I’m not on the same track but why do SDDM and VNC have such an importance?
This is about xRDP
I followed this guide of nmariusp.
and tested with
xfreerdp3 /u:administrator /w:800 /h:600 /v:192.168.0.25 /size:800x600
The above line can be refined and remmina works as well.
I didn’t bother setting up the firewall, I turned it off for the test.

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@eso thanks for your hints!

As I am running Gnome on lightdm with TigerVNC on XDMCP on most of my machines I did not want to change the way to connect from remote.

This guide is a good start for the remote login via RDP. For my special setting I had to change some parts.

While experimenting with the guide mentioned above I found out that my main culprit with VNC for SDDM was caused by two problems together. First I was trying to set this all up on a PC with dual monitor setup. Doing this you have to change your settings for x11vnc or TigerVNC to only use the main display. Second problem was a bug in Remmina that prevented to use the proper created VNC connection.

In the end I managed to configure remote login on SDDM either with VNC or RDP. If I find the time I will provide a howto.

any chance you could share what you did?.

Any experience with wayvnc and gnome?

Sorry, I did not found the time to write a summary. Maybe during christmas season …

Not wayvnc and Gnome but tigervnc, X11 and Gnome.