Confirming Emilk comment with one difference: reboot not needed Problem is that there is a state in which phy0 and dell-wifi in rfkill list are not in sync because the hardbutton toggle's both there is always one hardblocked.
Hardbutton wifi off: 2: phy0: Wireless LAN Soft blocked: no Hard blocked: yes 3: dell-wifi: Wireless LAN Soft blocked: no Hard blocked: no hardbutton wifi on: 2: phy0: Wireless LAN Soft blocked: no Hard blocked: no 3: dell-wifi: Wireless LAN Soft blocked: no Hard blocked: yes Solution which works on my system (Dell D830/Intel Corporation PRO/Wireless 4965 AG or AGN) > Hardbutton wifi Off 2: phy0: Wireless LAN Hard blocked: yes 3: dell-wifi: Wireless LAN Hard blocked: no > rfkill unblock all 2: phy0: Wireless LAN Hard blocked: yes 3: dell-wifi: Wireless LAN Hard blocked: yes Hardbutton wifi On 2: phy0: Wireless LAN Hard blocked: no 3: dell-wifi: Wireless LAN Hard blocked: no And Wifi Works -- Wireless RFKILL defaults to on (wireless off) and can't be turned off. https://bugs.launchpad.net/bugs/523143 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs