Deactivate shortcut launching airplay Everytime I use cmd + shift + p (which is used in a lot of advanced text editor like sublime to open the command palette) my mac opens a window . 

I don't want this mac to be connected to airplay.

I've looked at all airplay settings in system preferences as well as the keyborad shortcuts one. I even set a global cmd + shift + p on an arbitrary command to make it conflict with the airplay one, without success.

Installing keycues and cheatsheet didn't help me find it.
Noizio was actually at fault here. The application maps Command + Shift + P as its "Play/Pause" hotkey, overriding Sublime's own hotkey for the Command Palette. I modified the hotkey for Noizio to a different key pattern, and the issue was resolved.