I checked this issue with Tim days ago. As described in comment #5, bcmwl-kernel-souce did not work because that linux-headers-* packages were not installed, which are necessary for this dkms package.
There was no more hang after all the packages installed in my previous testing. But I will remind Tim updating his test result too. ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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