Facing issues with VNC server connectivity after upgrading from SUSE 12 to SUSE 15

1

I am facing issues with VNC server connectivity after upgrading from SUSE 12 to SUSE 15. The VNC server which was working fine on SUSE 12 is not starting on SUSE 15.

I observed the below following while starting the vncserver:

  1. $ sudo systemctl start vncserver@:1.service
    $ sudo systemctl status vncserver@:1.service

    vncserver@:1.service - Remote desktop service (VNC)
    Loaded: loaded (/usr/lib/systemd/system/vncserver@.service; enabled; vendor preset: disabled)
    Active: inactive (dead) since Wed 2025-10-08 08:59:11 +03; 5min ago
    Main PID: 20057 (code=exited, status=0/SUCCESS)

    Oct 08 08:59:11 ip-90-185-15-13 systemd[1]: Starting Remote desktop service (VNC)…
    Oct 08 08:59:11 ip-90-185-15-13 systemd[1]: Started Remote desktop service (VNC).
    Oct 08 08:59:11 ip-90-185-15-13 systemd[1]: vncserver@:1.service: Deactivated successfully.

  2. $ journalctl -u vncserver@:1.service

Oct 08 06:54:01 ip-90-185-15-13 systemd[1]: Starting Remote desktop service (VNC)…
Oct 08 06:54:01 ip-90-185-15-13 vncsession-start[1976]: No user configured for display :1
Oct 08 06:54:01 ip-90-185-15-13 systemd[1]: vncserver@:1.service: Control process exited, code=exited, status=1/FAILURE
Oct 08 06:54:01 ip-90-185-15-13 systemd[1]: vncserver@:1.service: Failed with result ‘exit-code’.
Oct 08 06:54:01 ip-90-185-15-13 systemd[1]: Failed to start Remote desktop service (VNC).
Oct 08 08:52:37 ip-90-185-15-13 systemd[1]: Starting Remote desktop service (VNC)…
Oct 08 08:52:37 ip-90-185-15-13 systemd[1]: Started Remote desktop service (VNC).
Oct 08 08:52:37 ip-90-185-15-13 systemd[1]: vncserver@:1.service: Deactivated successfully.
Oct 08 08:54:12 ip-90-185-15-13 systemd[1]: Starting Remote desktop service (VNC)…
Oct 08 08:54:12 ip-90-185-15-13 systemd[1]: Started Remote desktop service (VNC).
Oct 08 08:54:12 ip-90-185-15-13 systemd[1]: vncserver@:1.service: Deactivated successfully.

  1. I attempted to configure the VNC server following the SUSE documentation (https://support.scc.suse.com/s/kb/New-instructions-for-individual-vncserver-sessions ) but the issue persists.
2

I have exactly the same problem.

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