Actually the wlan module is wlan only without BT. Wlan is BCM4313(DW1503). Below is the result from cating /sys/kernel/debug/dell_laptop/rfkill, the bluetooth is indicated as installed, so it should be a bug of BIOS. With properly installed of bcmwl-kernel-source(with correct header files installed), the Fn+F2 won't halt the system. ----------------------------------------------------------- status: 0x6031D Bit 0 : Hardware switch supported: 1 Bit 1 : Wifi locator supported: 0 Bit 2 : Wifi is supported: 1 Bit 3 : Bluetooth is supported: 1 Bit 4 : WWAN is supported: 1 Bit 5 : Wireless keyboard supported: 0 Bit 8 : Wifi is installed: 1 Bit 9 : Bluetooth is installed: 1 Bit 10: WWAN is installed: 0 Bit 16: Hardware switch is on: 0 Bit 17: Wifi is blocked: 1 Bit 18: Bluetooth is blocked: 1 Bit 19: WWAN is blocked: 0
hwswitch_state: 0x7 Bit 0 : Wifi controlled by switch: 1 Bit 1 : Bluetooth controlled by switch: 1 Bit 2 : WWAN controlled by switch: 1 Bit 7 : Wireless switch config locked: 0 Bit 8 : Wifi locator enabled: 0 Bit 15: Wifi locator setting locked: 0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/803906 Title: [Dell Inspiron N5040] system halted after press Fn+F2(wireless switch) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/803906/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
