next interesting finding: last time switching on my notebook I pressed the wifi key before booting (during the bios init phase).
this caused another output for rfkill: $ sudo rfkill list 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no and wifi was working! the very interesting thing is that the dell-wifi entry is missing. -- WiFi Key doesn't work in Dell Studio 1557 https://bugs.launchpad.net/bugs/522545 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