This system must also be running the X Window system from X.org instead of Wayland. Previously I used kernel 4.4.27.x along with ubuntu 16.04 fileystem and there it used to work correctly. After successfully migrating filesystem I observed that xorg color depth parameters not working with new kernel. Details on configuring SSH on an Ubuntu system can be found in the chapter entitled “Configuring SSH Key-based Authentication on Ubuntu”. Hi Robert, I have currently migrated rootfs to ubuntu 20.04 along with kernel 5.10.x. Second, the system on which the application is being run (as opposed to the system on which the application is to be displayed) must be configured to allow SSH access. A number of commercial and free Windows based X servers are available for this purpose and a web search should provide you with a list of options. If the system is running Windows or macOS, however, then you must install an X server on it before you can display applications from a remote system. If the system is a Linux or UNIX-based system with a desktop environment running then this is no problem.

First, the system on which the application is to be displayed must be running an X server. In order to run an application on one Ubuntu system and have it display on another system there are a couple of prerequisites.

1.1 Requirements for Remotely Displaying Ubuntu Applications In this chapter, therefore, we will look at displaying individual applications on a remote system. While this works well if you actually need to remotely display the entire desktop, it could be considered overkill if all you want to do is display a single application. In the previous chapter we looked at how to display the entire Ubuntu desktop on a remote computer.

X11vnc server ubuntu 20.04