The list of programs in Startup Applications is very short in Linux Mint 12. These are programs that automatically start when you boot into the system. Most of the programs are now hidden by default. However, it is easy to show all the startup applications.
You can view the Startup Applications by selecting Other | Startup Applications from the Applications menu.
The following list is all that displays by default.
To show all the startup applications, open a Terminal window by selecting Accessories | Terminal from the Applications menu.
Type the following command at the prompt and press Enter.
sudo sed -i ‘s/NoDisplay=true/NoDisplay=false/g’ /etc/xdg/autostart/*.desktop
The command changes the line “NoDisplay=true” to “NoDisplay=false” in the the .desktop files in the autostart directory. We recommend that you copy and paste the command above. See below if you don’t know how to paste text into a Terminal window.
To paste text into a Terminal window that you’ve copied from elsewhere, right-click at the prompt and select Paste from the popup menu.
Now, when you open the Startup Applications Preferences dialog box, you will see all of the startup programs listed.
If you want a short list again, run the command listed above again, but switch “true” and “false.”