I have an NVidia Shield Controller, that is detected by Ubuntu as a standard joystick. Unity seems to react to some of the special buttons of this controller such as Volume Up, Volume Down and more annoyingly a special button on the controller is mapped to XF86PowerOff.
I know that the buttons is mapped to the keycode 124 thanks to
$ xinput test 'NVIDIA Corporation NVIDIA Controller v01.03' key press 124
I also know that the keycode 124 is mapped to XF86PowerOff thanks to:
$ xmodmap -pke | grep 124 keycode 124 = XF86PowerOff ...
I would like to disable this button but it doesn't seem to work using something like:
xmodmap -e "keycode 124 ="
I just want to use the joystick in a dedicated app, I don't need Unity to do anything special with it.