Re: tigervnc server configuration limitation

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Samuel Sieb writes:

On 2/24/24 07:10, Sam Varshavchik wrote:
I'm not sure when Fedora switched to the current tigervnc systemd-based configuration, but:

I've been using tigervnc to log in to an Ubuntu box, and it was simple to set up tigervnc on Ubuntu for remote access. I just tried the same on Fedora and was informed that launching vncserver was "deprecated", and pointed towards the documentation for Fefora's systemd-based configuration.

Reading through that, the following limitation is a showstopper for me:

# # Limitations
# You will not be able to start a Tigervnc server for a user who is already
# logged into a graphical session.

That's a no-go for me. My Fedora system is configured to automatically log into a graphical desktop. This won't work for me, then.

This is not a limitation on Ubuntu. It's too bad that Fedora cannot do the same.

I don't see how that would work on Ubuntu either. If there's already a session for a user, creating another session is going to cause great confusion and weird happenings.

I don't know what to tell you except that it works. I just VNCed into the Ubuntu box, and 'ps -ef' tells me I have two sessions running:

mrsam       1883    1846  0 10:00 ?        00:00:00 xfce4-session
mrsam       5411    5408  0 16:37 ?        00:00:00 xfce4-session

And just to make sure I wasn't nuts: I went over to the Ubuntu box and turned on the monitor: yup, I'm logged in, on an XFCE desktop. And I just disconnected a VNC session to the remote XFCE desktop.

They are different desktops:

$ tr '\0' '\012' </proc/1883/environ | grep DISPLAY
DISPLAY=:0
$ tr '\0' '\012' </proc/5411/environ | grep DISPLAY
DISPLAY=:1

No problems doing this on Ubuntu.

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