Cannot get Gnome Remote Desktop to work

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1

I’m sure it was working before but I’m having no luck at all now.

The current behaviour is that Remmina says it cannot connect to the RDP server.

Using “ss -l” I can see that it is running on 3389. I have the firewall port opened, and even disabled the whole firewall.

I believe it should be enabled by default in gnome but I added

environment.systemPackages = with pkgs; [
    pkgs.gnome.gnome-remote-desktop
  ];
  services.gnome.gnome-remote-desktop.enable = true;

to be sure.

I also tried the following with slightly different behaviour but still no luck

services.xrdp.enable = true;
services.xrdp.defaultWindowManager = "gnome-remote-desktop";
services.xrdp.openFirewall = true;

With xrdp enabled I got as far as the login but then it goes black for a few seconds before the window closes.

This is using NixOS 24.05 and fully updated. My requirement is to be able to log in to an existing Gnome session

2

Try with that maybe:

{
  environment.systemPackages = with pkgs; [
    gnome.gnome-session
  ];

  # https://nixos.wiki/wiki/Remote_Desktop
  services.xrdp = {
    enable = true;
    openFirewall = true;

    defaultWindowManager = "gnome-session";
  };
}
3

Same behaviour as previously with xrdp. Login prompt then black screen then the window closes.

I assume there are logs for this? Do you know where I can find them?

4

xrdp logs in journalctl have the following message after the window dies

Jul 16 12:57:43 hostname xrdp[2414]: --port parameter found, ini override [3389]
5

I should have looked there earlier but the option in the Gnome Settings Sharing panel is not even there so I suspect this is the hub of the problem

6

Can you share settings in Remmina to access the remote host?
I never had to add any port using default / basic setting in Remmina

Here’s a profile for a test remote (LXC container):

Screenshot from 2024-07-16 20-08-14
Screenshot from 2024-07-16 20-08-14781×546 24.4 KB