The root user is the only user that can run the X server, which is a configuration that is set by default. In this brief guide we will help you configure the Xorg Server to grant other users access to it under Ubuntu (11.10/11.04/10.10/10.04).

If you are not an authorized user, you will get this message once you start XServer:

$ startx
X: user not authorized to run the X server, aborting.

To fix this, you need tio start the command as root:

sudo startx

If you want to grant any user access to XServer, you need to run this command:

dpkg-reconfigure x11-common

Select which user to allow access to the X server. You have three options:

  • Root Only
  • Console Users Only
  • Anybody

To grant all users access to the X server, then select Anybody.

That's it!

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