Remote Display on Ubuntu

Problem

On Ubuntu remote display in X doesn not work.

Analysis

We need to remove “-nolisten tcp” from X command line.

Solution

1. This is sometimes in “/etc/X11/xinit/xserverrc”, but in Ubuntu you just need to configure GDM:Create or edit file /etc/gdm/custom.conf with the following content:

   [security]
   DisallowTCP=false

2. Restart X or reboot.
3. On the remote machine

   $ export DISPLAY=yourcomputer:0.0

4. On local machine

   $ xhost + remotemachine