Re: Currently on x11vnc, looking for reliable VNC solution?
On 9/7/22 10:11 PM, David wrote:
> On Thu, 8 Sept 2022 at 11:44, Chuck Zmudzinski <brchuckz@netscape.net> wrote:
> > On 9/7/22 7:45 PM, David wrote:
> > > On Thu, 8 Sept 2022 at 02:49, Chuck Zmudzinski <brchuckz@netscape.net> wrote:
> > > > On 9/7/2022 12:13 PM, Chuck Zmudzinski wrote:
> > >
> > > > > I use the tigervnc-standalone-server which is in the Debian packages
> > > > > archives. I use it only on a trusted LAN network so I don't need an
> > > > > encrypted vnc connection either, and I can access it remotely from the
> > > > > Internet by connecting to the LAN using a VPN (I use strongswan/IKEv2
> > > > > for the VPN server). The main configuration files are at ~/.vnc, and
> > > > > there are tools to configure it such as vncpasswd. The most important
> > > > > configuration file is ~/.vnc/xstartup, where you launch your DE or
> > > > > window manager of your choice.
> > >
> > > > > You can launch the server from a terminal logged in as an ordinary user
> > > > > and the server runs as an ordinary user in the background so after you
> > > > > start the server in a terminal you can exit that terminal session.
> > >
> > > > Actually, you *should* exit that terminal session, especially if it is
> > > > a terminal window running in the same kind of session (gnome, lxde, etc)
> > > > and as the same user that you plan to run in the VNC server. This is
> > > > another limitation of the tigervnc-standalone-server: it does not connect
> > > > to an already running X11 session but instead launches a new session as
> > > > an ordinary user as specified in ~/.vnc/xstartup.
> > >
> > > > I have found that if I try to run two sessions as the same user, one over
> > > > VNC and one on the local desktop, it does not work too well, at least
> > > > with the current version of gnome, probably because there is not good
> > > > enough separation of the various user processes that gnome starts for
> > > > each user session.
> > >
> > > Hi,
> > >
> > > Regarding your final sentence, I wonder if installing dbus-x11 instead of
> > > dbus-user-session would improve that situation.
> > >
> > > Because of what I read in the 'Description' in the output of
> > > 'apt show dbus-user-session'.
> > >
> >
> > I have both dbus-user-session and dbus-x11 installed:
> >
> > chuckz@debian:~$ dpkg-query -l dbus*
> > Desired=Unknown/Install/Remove/Purge/Hold
> > | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
> > |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
> > ||/ Name Version Architecture Description
> > +++-=======================-============-============-=================================================================
> > ii dbus 1.12.20-2 amd64 simple interprocess messaging system (daemon and utilities)
> > un dbus-bin <none> <none> (no description available)
> > un dbus-daemon <none> <none> (no description available)
> > un dbus-session-bus <none> <none> (no description available)
> > un dbus-session-bus-common <none> <none> (no description available)
> > un dbus-system-bus <none> <none> (no description available)
> > un dbus-system-bus-common <none> <none> (no description available)
> > ii dbus-user-session 1.12.20-2 amd64 simple interprocess messaging system (systemd --user integration)
> > ii dbus-x11 1.12.20-2 amd64 simple interprocess messaging system (X11 deps)
> >
> > I don't know how systemd handles the case when one user has two gnome sessions running at the same time or if it is possible to make it behave better in that case. I also don't know if installing dbus-session-bus or dbus-system-bus might help. If anyone has any tips to improve the way it runs in that case, I could try them out.
>
> The 'Description' to which I referred you says:
> To retain dbus' traditional session semantics, in which login sessions
> are artificially isolated from each other, remove this package and install
> dbus-x11 instead
>
> Note: "remove this package".
>
I just tried my system with the dbus-user-session package removed, and it still does not run two gnome sessions of the same user very well. After removing the dbus-user-session package with the dbus-x11 package still installed, I started the tigervnc server which started a gnome user session, and then when I logged into another gnome session on the local display as the same user, the session on the local display started normally but in the process of starting the session on the local display the tigervnc server died. So I avoid running two gnome sessions as the same user at the same time on the same machine, and I don't think the feature of running two sessions at the same time as the same user on the same machine is a feature that is needed all that much, it is just a curiosity for me.
Best regards,
Chuck
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