By default Ctrl + Alt + BackSpace key combination in Ubuntu Jaunty was disabled.This shortcut key is used  to restart X.This tutorial will explain how to enable this key combunation.

Ubuntu 9.04, codenamed Jaunty Jackalope, was released on April 23rd, also celebrating the 10th Ubuntu release. Since its first version back in October 2004, Ubuntu went through many improvements and quickly became one of the most popular distributions out there, with a huge and continuously thriving community and a fast development method.

The ctrl-alt-backspace key combination was used to restart X-server and was recently disabled because of a upstream (X.org) design decision:

The next Ubuntu release codenamed "Jaunty Jackalope" won't arrive until April of next year, but some people are already creating mock-ups of its desktop theme.

In the new Ubuntu 9.04 Jaunty Jackalope, Intel graphic (video) drivers 965 (x3000 or x3100) are blacklisted so you cannot run Compiz thus your desktop effects cannot be enabled. There is a way to enable desktop effects, though this is not recommended because

Ubuntu 9.04, the Jaunty Jackalope was officially released on April 23rd 2009, and had much to live up to. For starters, the impending release of Microsoft Windows 7 has users bashing Ubuntu’s stale default interface.

Since Ubuntu 9.04, the Ctrl-Alt-Backspace key combination to force a restart of X is now disabled by default, to eliminate the problem of accidentally triggering the key combination. In addition, the Ctrl-Alt-Backspace option is now configured as an X keymap (XKB) option, replacing the X server "DontZap" option and allowing per-user configuration of this setting.

I once wrote a tutorial here on installing Conky on Ubuntu. Unfortunately, that guide will not work on the latest version of Ubuntu, which is 9.04 (Jaunty Jackalope). That’s why I'm going to make an update on that one with this post.

This tutorial shows how to set up an Ubuntu Jaunty Jackalope (Ubuntu 9.04) server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Courier POP3/IMAP, Quota, Firewall, etc.