Ctrl-Alt-T stopped working after installing GNOME Shell on Ubuntu 18.04
Go to Settings -> Devices -> Keyboard, then add Ctrl + Alt + T if it does not exist.
Upgraded to 18.04 from 16.04 ; kept my preference for the Unity desktop. But couldn't open the terminal with a key combo despite checking the shortcut in the checked answer.
- Install
compizconfig-settings-manager
- Run
ccsm
- Turn off the "Commands" plugin
This resolved the lack of ctrl-alt-T, Vol +/-, all the other extended and media keys on my keyboard.