Help to configure controler on Nvidia Shield

[LEFBE]

Hello Team,

My dolphin is installed on my Nvidia Shied 16BG.
All seem to work perfectly (tested on 2 Wii games) however, I'm unable to use Nvidia controler into the game.

Most of time I only can access to external menu (quit, screenshot, reset controler ...) but I cannot play with the game.

Note: Configuration settings is by default.

Could you please help to enable Nvidia controler ?

Thanks by advance,