Ronald Hall wrote:

I'm ready to toss my stupid box out the window.. having a strange problem
with VNC I just cannot figure out.  I'm trying to get VNC to start
automatically when the system comes up.  I've tried to do that 2 ways..

There are more ways, and unfortunatly, your choices are not the best.

First, by doing it through rc.local:

su - username -c "vncserver :2 -name SystemName -depth 16 -geometry
800x600"

That fails with a black screen and an X for a cursor.. no windows
manager..

The problem here is that the environment (`env` and `set` variables) are not as they are with a login. It takes a lot of work to get it going but you don't need to.



Then I tried loading through the vncserver service and the /etc/sysconfig/vncservers file.. which I had:

VNCSERVERS="2:username"
VNCSERVERARGS[2]="-name SystemName -geometry 800x600 -depth 16"

That also fails with a black screen and an X for a cursor.

This is a better aproach. I don't know your distribution (guess between SuSE and RedHat) but I think your edits in the sysconfig area are not effectuated.


In the end, these edits either go into /etc/X11/gdm/gdm.conf (if gnome is your display manager) or in /etc/X11/xdm/Xservers. Details follow.



No, what doesn't make sense, and is driving me INSANE, is that if I just
MANUALLY start up VNC via an SSH session after my system boots up (And I
have VNC Services disabled and nothing in rc.local) it comes up with a
Gnome desktop just fine. I also uncommented the 2 lines out of the ~HOME/.vnc/xstartup file that Redhat suggests. Its just strange if I invoke it manually it works but if I try to do it at startup it fails.

It's RedHat. Thats not bad. Both RedHat and SuSE have something pre-configured. If you scan trough their documentation (try /usr/share/doc/ and such) then you will find their ideas about how to start vnc-sessions.



ANY ideas here? I know the simple answer is just to start it when I need
it, but this is driving me INSANE and I can't figure out why it won't load
properly. Any insight would be greatly appreciated. I am currently running Fedora Core 3, and VNC 4.0.7 I believe.

In '/etc/X11/xdm/Xservers': # vncsession :7, using vncpassword from root. :7 ROOTVNC local /usr/bin/Xvnc -geometry 800x600 -depth 8 -rfbwait 120000 -rfbauth /root/.vnc/passwd :7 # vncsession :4, no vncpassword. :4 FREEVNC local /usr/bin/Xvnc -geometry 800x600 -depth 8 -rfbwait 120000 -alwaysshared -dontdisconnect :4

For gdm based machines, I updated '/etc/X11/gdm/gdm.conf' in a similar way:
- add server definitions (at the end,
    the double inserted lines are continuation of the previous line!!)
    [server-ROOTVNC]
    # vncsession, using vncpassword from root
    name=ROOTVNC server
    flexible=false
    command=/usr/bin/Xvnc -geometry 800x600 -depth 8 -rfbwait 120000
        -rfbauth /root/.vnc/passwd
    [server-FREEVNC]
    # vncsession, using no vncpassword
    name=FREEVNC server
    flexible=false
    command=/usr/bin/Xvnc -geometry 800x600 -depth 8 -rfbwait 120000
        -alwaysshared -dontdisconnect
- in the [servers] section, add and/or replace lines that indicate an Xserver:
    # use roots vncsession on :7
    7=ROOTVNC
    # use the free-access vncsession on :4.
    4=FREEVNC

There is a change the above gives you a blank (black) vnc-session. If so, also update the next settings (from http://www.sourcecodecorner.com/articles/vnc/linux.asp):
########
2) edit 'xdm-config' and comment out the line '! DisplayManager.requestPort: 0' (should be the last line)
a) RedHat 6.2, 7.1, 7.2 - '/etc/X11/xdm/xdm-config'


3) edit 'kdmrc' and enable XDMCP on port 177 (if kde is new enough)
a) RedHat 7.2 - '/etc/kde/kdm/kdmrc'
b) If running Gnome as your desktop, start gdmconfig, select Expert Mode, ensure that Enable XDMCP is checked. (You must be logged in as root)


4) edit Xaccess and uncomment the line '*        #any host can get a login 
window'
          a) RedHat 6.2, 7.1, 7.2 -' /etc/X11/xdm/Xaccess'
########

If you want more than 2 or 3 vnc-sessions at startup, better follow the entire instruction on http://www.sourcecodecorner.com/articles/vnc/linux.asp . That will give you the 'inetd' setup as also described at http://www.realvnc.com/v4/man/Xvnc.html .


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