The hardware has a Broadcom wireless adapter and it is using "brcm80211", the Broadcom driver in the kernel/staging. It could be of bad quality in 2.6.38.
@Tim, can you try to install the proprietary Broadcom driver package "bcmwl-kernel-source" and see if the issue still occurs with it? ** Changed in: linux (Ubuntu) Status: New => 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