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ubuntu14.04无法打开wifi

tag-icon • tag-icon 14.04 networking wireless connection rfkill
ubuntu14.04无法打开wifi

我的电脑是Asus x450j

iwconfig显示：

eth0      no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=16 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off

lo        no wireless extensions.

rfkill list显示：

0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
1: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: acer-wireless: Wireless LAN
    Soft blocked: yes
    Hard blocked: no

lspci -vnn | grep Network显示：

03:00.0 Network controller [0280]: Qualcomm Atheros AR9485 Wireless Network Adapter [168c:0032] (rev 01)

这是什么问题？我认为驱动程序可能未安装。

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