Hi,

after adding this sentence
I get the same message

gfp@Tuxedo /etc$  sudo guix system reconfigure /etc/config.scm
Passwort:
guix system: Fehler: Der Dienst „xorg-server“ kommt mehr als einmal vor

guix system: Error: The service "xorg-server" occurs more than once

it means I would have to change something in my config.scm

I added now 3 lines about lightdm (one is deleting gdm) see: ;;added
  --------------------------------------------------------------- 
                                                             config.scm 
 

;; This is an operating system configuration generated
;; by the graphical installer.

(use-modules (gnu))
(use-modules (gnu services lightdm))                     ;;added
(use-package-modules cups scanner)
(use-service-modules cups desktop networking ssh xorg virtualization)

(operating-system
   (locale "de_DE.utf8")
   (timezone "Europe/Berlin")
   (keyboard-layout (keyboard-layout "de"))
   (host-name "Tuxedo")
   (users (cons* (user-account
                   (name "gfp")
                   (comment "Gfp")
                   (group "users")
                   (home-directory "/home/gfp")
                   (supplementary-groups
                     '("wheel" "netdev" "audio" "video" "libvirt")))
                 %base-user-accounts))
   (packages
     (append
       (list (specification->package "nss-certs"))
       %base-packages))
   (services
     (append
       (list (service mate-desktop-service-type)
             (service enlightenment-desktop-service-type)
             (service xfce-desktop-service-type)
             (service lightdm-service-type)                  ;;added
                         (service cups-service-type
                                 (cups-configuration
                                         (web-interface? #t)
                                         (extensions (list cups-filters 
hplip))))
                         (service openssh-service-type)
             (service tor-service-type)
             (set-xorg-configuration
               (xorg-configuration
                (keyboard-layout keyboard-layout)))
             (service libvirt-service-type
                      (libvirt-configuration
                       (unix-sock-group "libvirt")
                       (tls-port "16555")))
             (service virtlog-service-type
                      (virtlog-configuration
                       (max-clients 1000))))


       (modify-services %desktop-services
          (guix-service-type
                 config => (guix-configuration
                   (inherit config)
                   (extra-options (list "--gc-keep-derivations=yes" 
"--gc-keep-outputs=yes"))))
          (delete gdm-service-type)                           ;;added
          (sane-service-type _ => sane-backends))))

   (bootloader
     (bootloader-configuration
       (bootloader grub-efi-bootloader)
       (targets (list "/boot/efi"))
       (keyboard-layout keyboard-layout)))
   (swap-devices
    (list (swap-space
           (target (uuid "51d5cd20-4513-4a02-9e35-df4338eccaa0")))))
   (file-systems
     (cons* (file-system
              (mount-point "/boot/efi")
              (device (uuid "BB77-FE3B" 'fat32))
              (type "vfat"))
            (file-system
              (mount-point "/")
              (device
                (uuid "4fb0ed7c-61ab-45eb-be0b-ff527b320e6d"
                      'ext4))
              (type "ext4"))
            %base-file-systems))
   (initrd-modules (cons "virtio_scsi"    ; Needed to find the disk
                         %base-initrd-modules)))
-----------------------------------------------------------------------

Kind regards

Gottfried


Am 12.05.23 um 18:15 schrieb Felix Lechner:

>      %desktop-services
> 
> in your list of services with something like
> 
>      (modify-services %desktop-services
>          (delete gdm-service-type))
> 

> 
> Kind regards
> Felix


--