Whenever I try to install Kali Tools on Ubuntu 14.04 LTS. I have to reboot and it comes on but it shows a black screen (no backlight). I can open a terminal but I don't know how to use it.

These are the commands I used if it's needed.

sudo passwd root

sudo sh -c 'echo "greeter-show-manual-login=true" >> /etc/lightdm/lightdm.conf'

sudo apt-get install gnome-session-fallback

sudo apt-get install gdebi && sudo apt-get install synaptic

How do I fix this?

2 Answers 2


Whick Kali Tools you were trying to install?

If you were using repositories hosted on launchpad.net e.g.

deb http://ppa.launchpad.net/wagungs/kali-linux/ubuntu YOUR_UBUNTU_VERSION_HERE main deb-src http://ppa.launchpad.net/wagungs/kali-linux/ubuntu YOUR_UBUNTU_VERSION_HERE main

Kali tools are not supported for Ubuntu 14.04. You can check the link


Latest Ubuntu version supported is 13.04.

  • Ok thanks. I didn't know It wasn't supported yet. Commented Aug 4, 2014 at 4:49
  • You can install many useful kali tools just from their websites though and it works fine. e.g. metasploit, Burp etc. If this answer was helpful you can accept it..thanks :)
    – Vivek
    Commented Aug 4, 2014 at 4:56
  • How do I install Bully? Commented Jan 7, 2015 at 21:49

Change lightdm.conf back to:


without the spaces.

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