One Ubuntu 18.04 server set up by following the Ubuntu 18.04 initial server setup guide, including a sudo non-root user and a firewall.This choice will ensure that our VNC connection will be smooth and stable even on slower internet connections. You’ll use TightVNC, a fast and lightweight remote control package. In this guide, you’ll set up a VNC server on an Ubuntu 18.04 server and connect to it securely through an SSH tunnel. It makes managing files, software, and settings on a remote server easier for users who are not yet comfortable with the command line.
If you want your own driver to work, you will have to research what changes are needed and make your own xorg.Virtual Network Computing, or VNC, is a connection system that allows you to use your keyboard and mouse to interact with a graphical desktop environment on a remote server. Note 2: This method is using the X11 dummy driver, so some graphical features may not be available.If you need to use a monitor, run sudo mv /etc/X11/nf /etc/X11/ and reboot Note: Following these steps will result in any connected monitors displaying a blank screen.Reboot the machine, and you should now be able to connect as expected.RHEL / CentOS sudo yum install xorg-x11-drv-dummy.Sudo cp /etc/X11/nf /etc/X11/ # this file may not exist so if there is an error, it can be ignored Sudo apt install xserver-xorg-video-dummy Install the X11 dummy driver, by running:.This can also be specified using a configuration file: /root/.vnc/config.d/vncserver-x11 On the Expert tab, filter the list for CaptureMethod, and set the value to 1.Select Options from the hamburger menu.On the remote Linux computer, open the VNC Server dialog.Change the VNC Server CaptureMethod parameter:.Note: RealVNC have not tested this particular emulator and it is only provided as an example An example EDID emulator can be seen here Connect an EDID emulator to the VNC Server computer.Check that Linux is not set to a "Battery Saver" power mode.Change your Power settings on the Linux computer to never turn off the monitors/displays.If you are running VNC Server on Ubuntu 18.04 LTS or later, or CentOS/RHEL 8 or later, you need to disable Wayland.Upgrade VNC Server to version 6.5.0, as this version contains some changes to try and automatically recover from a blank screen.At this time, there are some known workarounds you can try below: It appears that in the above situations, Linux does not correctly report graphical updates to be captured by VNC Server. The issue is most commonly seen when connecting to a computer with no monitors attached (headless), or a monitor using HDMI/DisplayPort is connected but powered off. In some circumstances, your Linux remote computer will not display correctly in VNC Viewer.
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