-----Original Message-----
From: Mike Miller [mailto:mbmiller@gmail.com] On Behalf Of Mike Miller
Sent: Tuesday, May 15, 2012 11:35 AM
To: Long, Phillip GOSS
Cc: VNC List
Subject: RE: Ubuntu with Xvnc to :1 with no window manager at :0
On Mon, 14 May 2012, Long, Phillip GOSS wrote:
> On Wed, 25 Apr 2012, Mike Miller wrote:
<snip>
Thanks, Phillip. On my system, it seems that
/etc/X11/xinit/xinitrc calls /etc/X11/Xsession and there is no
~/.xinitrc file.
Suppose I make it so that /etc/X11/xinit/xinitrc doesn't start X11.
I guess I would then see a console window after booting. Can I
just run vncserver :1, say, from there, then run vncviewer from
that console? It just seems like that would fail because I don't
have a graphical interface. How can vncviewer run without a
DISPLAY?
By the way, I have been running Xvnc on :1 for years without any
failures (that's RealVNC Free). It ran once for something like 500
days on Solaris. It's really the same on Ubuntu -- no failures --
but I happen to have the machine in a place where the power
sometimes goes out and that has limited me to only about 200 days
of uninterrupted uptime.
Mike
Mike:
Once again, I have to emphasize that I am *not* an expert, nor have
I ever used Xvnc, so I'm just going by what I have ready over the
years; unfortunately, I can't tell U off-hand where I happened to
read these things, other than to say that it was most likely on the
RealVNC website.
I poked around on the RealVNC website a bit, and on the page
http://kb.realvnc.com/questions/10/How+do+I+run+multiple+screens%7B47%7D sessions+of+VNC%3F
it says that there is an X server built into the vncserver. It
also shows one case in which U want to have more than one X server
(running one or more copies of "vncserver"). In fact, much to my
surprise, it also shows that U can attach "vncserver" to an
already-existing X server. I didn't know U could do that!
"vncserver" is an X server, with its own "display;" U work with it
by setting the DISPLAY environment variable to the appropriate
value (:1, :2.0, :0.1, etc.), just like U do with X11. It will
work with your default window manager, or U can use a different one
(changed in ~/.vnc/.something-or-other). If U modify xinitrc, U
would change it to launch "vncserver" instead of "X;" as a general
rule, I try Really Hard not to change system-wide stuff, but in
this case, I'm not sure how to implement Xvnc in user-mode. If my
understanding is correct, your X server would then be running on
display :0.0. Since this would be a system-wide change, all users
on the system would experience this change. So long as they
interact with the X server using their window manager (which
everybody does), they probably wouldn't notice any change (any
differences would probably mean that one X server or the other had
a bug, or was making an alternate assumption about something).
Running "vncserver" as your primary X server would have the
advantage of allowing anybody who connected your machine to see
your desktop, just like it works on MSWindows; of course, working
like MS Windows is not always seen as an advantage!
Thx, Phil Long
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Goss ... Innovation for Business
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