nixos/tests/flatpak: explicitly disable gdm to fix eval

The switch to lightdm as default display manager in #30890
broke eval of the flatpak test. Since the test uses the
auto display manager (lightdm), gdm must now be explicitly disabled.

Uli Baum 7e9bd2da 15e6e1ff

Changed files
+2
nixos
tests
+2
nixos/tests/flatpak.nix
···
machine = { pkgs, ... }: {
imports = [ ./common/x11.nix ];
services.xserver.desktopManager.gnome3.enable = true; # TODO: figure out minimal environment where the tests work
environment.gnome3.excludePackages = pkgs.gnome3.optionalPackages;
services.flatpak.enable = true;
environment.systemPackages = with pkgs; [ gnupg gnome-desktop-testing ostree python2 ];
···
machine = { pkgs, ... }: {
imports = [ ./common/x11.nix ];
services.xserver.desktopManager.gnome3.enable = true; # TODO: figure out minimal environment where the tests work
+
# common/x11.nix enables the auto display manager (lightdm)
+
services.xserver.displayManager.gdm.enable = false;
environment.gnome3.excludePackages = pkgs.gnome3.optionalPackages;
services.flatpak.enable = true;
environment.systemPackages = with pkgs; [ gnupg gnome-desktop-testing ostree python2 ];