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rated 0 times [  1] [ 0]  / answers: 1 / hits: 3204  / 2 Years ago, wed, august 31, 2022, 9:55:50

I am trying to install vnc on an x86_64 ubuntu 20.10 which is headless. I do NOT want Xfce, all of the tutorials for some inexplicable reason tell you to install xfce. I do NOT want to install this package as I already have the desktop manager: Gnome (default on Ubuntu).


As far as I can tell the guide on digital ocean seems to be the best except their xstartup is for xfce. I tried following and replaced xfce with gnome-session but I just get a grey screen and can't interact with anything.


could anyone please help me with this or point me in the right direction.


Thanks!


Edit: Here is my xstartup:


# Config requires following packages:

# gnome-panel nautilus gnome-terminal metacity

#





export XKL_XMODMAP_DISABLE=1



unset SESSION_MANAGER

unset DBUS_SESSION_BUS_ADDRESS



[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup

[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources

xsetroot -solid grey



gnome-session &

gnome-panel &



metacity &

gnome-terminal &

I run vncserver via ssh on a remote machine using this:


$ vncserver



New 'X' desktop is media-server:1



Starting applications specified in /home/kevin/.vnc/xstartup

Log file is /home/kevin/.vnc/media-server:1.log

and here is the log:


04/02/21 10:40:28 Xvnc version TightVNC-1.3.10

04/02/21 10:40:28 Copyright (C) 2000-2009 TightVNC Group

04/02/21 10:40:28 Copyright (C) 1999 AT&T Laboratories Cambridge

04/02/21 10:40:28 All Rights Reserved.

04/02/21 10:40:28 See http://www.tightvnc.com/ for information on TightVNC

04/02/21 10:40:28 Desktop name 'X' (media-server:1)

04/02/21 10:40:28 Protocol versions supported: 3.3, 3.7, 3.8, 3.7t, 3.8t

04/02/21 10:40:28 Listening for VNC connections on TCP port 5901

Font directory '/usr/share/fonts/X11/75dpi/' not found - ignoring

Font directory '/usr/share/fonts/X11/100dpi/' not found - ignoring



(gnome-panel:123980): gnome-panel-WARNING **: 10:40:30.098: Failed to acquire bus name!

metacity-Message: 10:40:30.227: could not find XKB extension.



(metacity:123981): metacity-WARNING **: 10:40:30.232: Failed to create compositor: Missing composite extension required for compositing

Xlib:  extension "X-Resource" missing on display ":1".

Here is what I get when I try to view the desktop:
VNC Connection


More From » vnc
 Answers
1

Of course this is possible! There is nothing magical, Virtual display, desktop manager and VNC server are 3 pieces that must be put together correctly.


VNC server setup consists of 3 main steps:



  1. Xvfb - starting virtual display (can be used not only by GUI desktop, but could run apps like games or chromium directly in it)


export DISPLAY=:1

Xvfb $DISPLAY -screen 0 1024x768x16


  1. GUI session that connects to same Xvfb $DISPLAY and renders desktop there


For XFCE use this


sudo apt install xfce4 xfce4-goodies



xfce4-session # start xfce4

For default gnome use this:


gnome-shell --replace # start ubuntu gnome


  1. xvnc server (tightvncserver or x11vnc). x11vnc way better, because Copy+Paste works out of box and Chromium apps work. tightvncserver does not work chromium apps. VNC server also connects to $DISPLAY and provides the access to clients outside. Do not run as sudo!


sudo apt install x11vnc

Password setup


x11vnc -storepasswd



x11vnc -display $DISPLAY -forever -loop -noxdamage -repeat -rfbauth /home/ubuntu/.vnc/passwd -rfbport 5900 -shared

Final script that you add to crontab crontab -e with @reboot /path/to/script.sh


Run scripts in background using & syntax


For XFCE


#!/bin/bash

source /home/ubuntu/.bashrc

export DISPLAY=:1

Xvfb $DISPLAY -screen 0 2048x1536x24 &

xfce4-session &

x11vnc -display $DISPLAY -forever -loop -noxdamage -repeat -rfbauth /home/ubuntu/.vnc/passwd -rfbport 5900 -shared &

For default gnome


#!/bin/bash

source /home/ubuntu/.bashrc

export DISPLAY=:1

Xvfb $DISPLAY -screen 0 2048x1536x24 &

gnome-shell --replace &

x11vnc -display $DISPLAY -forever -loop -noxdamage -repeat -rfbauth /home/ubuntu/.vnc/passwd -rfbport 5900 -shared &

[#1984] Friday, September 2, 2022, 2 Years  [reply] [flag answer]
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