我有一个 HP Pavilion dm4-2070us，它有一个 Intel Corporation Centrino Wireless-N 1000 适配器。
问题是我将系统升级到 Ubuntu 11.10 后，我的计算机没有显示无线网络。以下是我的输出sudo lshw -class network：
*-network DISABLED
description: Wireless interface
product: Centrino Wireless-N 1000
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:01:00.0
logical name: wlan0
version: 00
serial: 8c:a9:82:81:5a:30
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlagn driverversion=3.0.0-12-generic firmware=39.31.5.1 build 35138 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
resources: irq:42 memory:c2500000-c2501fff
*-network
description: Ethernet interface
product: AR8151 v2.0 …