WiFi无法在ubuntu 12.04 dell 3521上运行

我在戴尔Inspiron 3521 15R上安装了Ubuntu 12.04和Windows 8。 Wifi在Windows 8上工作得非常好，但它不能在Ubuntu 12.04上工作，而是甚至没有被检测到。

我试过安装backports

sudo apt-get linux-backports-modules-cw-3.6-precise-generic 

这没用。 我已经尝试安装几乎所有东西，但仍然无法正常工作。

结果： lspci

 00:00.0 Host bridge: Intel Corporation Ivy Bridge DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Ivy Bridge PCI Express Root Port (rev 09) 00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09) 00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4) 00:1c.1 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 2 (rev c4) 00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04) 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Device 6601 07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05) 08:00.0 Network controller: Atheros Communications Inc. Device 0036 (rev 01) 

结果： lsusb

 Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 0cf3:0036 Atheros Communications, Inc. Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. Bus 001 Device 005: ID 0c45:64ad Microdia 

结果： rfkill list

 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 

Answer 1

请试试：

 sudo apt-get install linux-backports-modules-cw-3.8-precise-generic 

我相信cw-3.8包含了你设备的模态。

如果您的设备仍未显示，请发布：

 modinfo ath9k | grep 0036 dmesg | grep ath 

请获得有效的以太网连接，打开终端并执行：

 sudo apt-get install linux-headers-generic build-essential 

将此文件下载到桌面： https ： //www.kernel.org/pub/linux/kernel/projects/backports/2013/11/13/backports-20131113.tar.bz2右键单击它并选择“Extract Here”。 “ 回到终端：

 cd Desktop/backports-20131113/ make defconfig-ath9k make sudo make install 

重启并告诉我们它是否正常工作。 您将仅为当前运行的内核编译驱动程序。 当Update Manager在重新引导后安装较新的内核版本（也称为linux-image）时，重新编译：

 cd Desktop/backports-20131113/ make clean make defconfig-ath9k make sudo make install sudo modprobe ath9k 

请保留当时的文件和这些说明。