sylvie@sylvie-HP-G72-Notebook-PC:~$ sudo rfkill list
[sudo] Mot de passe de sylvie :
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: no
2: hp-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
sylvie@sylvie-HP-G72-Notebook-PC:~$
Si je comprends bien, tout est ok, non?