Thank you for the reply. I started it again with `-loglevel 110`, and the 
client didn't show anything obvious but noticed in the server log file `sh: 
line 1: /opt/TurboVNC/bin/xstartup.turbovnc: No such file or directory`.  
This solved the issue: `sudo ln -s /usr/bin/xstartup.turbovnc 
/opt/TurboVNC/bin/xstartup.turbovnc`. Now `vncviewer -sshport 1234 -sshuser 
myuser hostname` work. Thank you again for all the support. I'll update the 
AUR issue.

On Tuesday 27 February 2024 at 17:36:00 UTC+1 DRC wrote:

> The TurboVNC Viewer has two modes of operation.
>
> When you pass only a hostname or IP address to the TurboVNC Viewer, it 
> tries to use the TurboVNC Session Manager.  The TurboVNC Session Manager 
> connects to the TurboVNC host using the viewer's built-in SSH client and 
> obtains a list of all TurboVNC sessions currently running under your user 
> account on the host.  If no TurboVNC sessions are running, then it starts a 
> new session and connects to it.  Otherwise, the Session Manager presents 
> you with a list of running sessions, allowing you to choose the session to 
> which to connect.  When connecting to a TurboVNC session using the TurboVNC 
> Session Manager, the RFB connection is automatically tunneled through SSH 
> by default, and authentication is automatically implemented by generating 
> and exchanging a one-time password with the session through SSH (so 
> effectively you only have to authenticate with the SSH server.)  However, 
> this mode of operation requires the TurboVNC Server to be installed on the 
> host, and it expects the TurboVNC Server to be installed under 
> /opt/TurboVNC by default.  It sounds like you have the TigerVNC Server 
> installed on the host, and the TigerVNC Server isn't compatible with the 
> TurboVNC Session Manager.
>
> When you pass a hostname or IP address as well as a VNC display number, 
> TCP post, or Unix domain socket path to the TurboVNC Viewer, it acts as a 
> regular VNC viewer, connecting directly to the VNC server listening on the 
> specified interface on the host.  This mode of operation is compatible with 
> the TigerVNC Server and other VNC servers, but it doesn't have session 
> management capabilities, nor does it have automatic authentication and SSH 
> tunneling.
> On 2/27/24 3:47 AM, terryer wrote:
>
> I'm looking for any hints that might help resolve the problems we see when 
> using TurboVNC in Arch/Manjaro. This is how far I managed to investigate 
> (comment 
> in AUR <https://aur.archlinux.org/packages/turbovnc#comment-958375>):
> Trying `vncviewer my_ssh_config_host` I got `Could not execute 
> /opt/TurboVNC/bin/vncserver -sessionlist, is TurboVNC server installed in 
> /opt/TurboVNC ?`. And there is no `/opt/TurboVNC` dir. I started to link 
> the following into a freshly created `/opt/TurboVNC/bin`: vncserver, Xvnc, 
> vncpassword, webserver. Now the error remaining is:
> ```
> libjawt.so path: /usr/lib/jvm/java-21-openjdk/lib
> Session Manager Error:
> Could not execute
>     /opt/TurboVNC/bin/vncpasswd -o -display :1
> on host node1:
>     The X display ":1" does not support VNC one-time passwords
> ```
> Any hint welcome.
>
> Thanks
>
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