Dell Inspiorn 14VR 1616b Ubuntu Wireless card problem

Two solutions found:

1 find the NIC driver download:

With the command

Following From:http://zhidao.baidu.com/link?url=k6qnidjlbryzjsew1cvus_1p4jv-73c82dvm9jwje_ Gpdtfpzcork9s2536gcxz2mlwiqkg_or2ouc0nd9tnta

Terminal:
sudo ifconfig-a
See what devices (such as: ETHX is generally wired equipment, wlan0 for wireless devices, Bo Tong (Dell is likely to use the wireless network card radio) official driver to the whole into ETHX)
If not:
sudo lspci
See if your network device is there. If there is, and sudo ifconfig-a not, the driver is not installed, if not, there may be no wireless network card (win7 available, do not consider this), or to turn it off (no), or kernel do not recognize (ubuntu12.04 kernel is 3.X, it should be recognized you this device)

Below myself, I check the NIC for BCM43142 802.11b/g/n wireless card.

Download the driver from the Internet and install it according to the instructions. 32-bit operating system download 32-bit driver, 64-bit operating system download 64-bit driver.

: http://www.broadcom.com/support/802.11/linux_sta.php

2 online There is a way for a person:

From:http://blog.sciencenet.cn/blog-54276-713451.html

Here's how:

My notebook model for Lenovo E430, bought when the machine preinstalled Win8, toss a long time before the installation of Ubuntu. Installed after the discovery can not wireless internet access, after the inspection found that no wireless network card drivers.

In Ubuntu, usually the wired network card is eth0, the wireless card is wlan0, and so on, and so on (some wireless network card models may be named Eth1, not wlan0. Use the Ifconfig command to view the network card information of the system, there is no wlan0 or eth1, indicating that the driver is not installed.

Install network card driver, need to know the type of network card, with lspci command to see, found My network card is

Broadcom Corporation BCM43142 802.11b/g/n (rev. 01)

This network card is a very old network card, has been rarely used, so the drive is very difficult to download. Tried a lot of ways, and finally found on the following online:

http://askubuntu.com/questions/175104/how-do-i-install-bcm43142-wireless-drivers-for-dell-vostro-3460-3560

The things I do are as follows:

sudo apt-get install linux-headers$ (uname-r | grep-po "\-[a-z].*")

sudo apt-get install build-essential dkms

sudo apt-get install dpkg

sudo apt-get install Bcmwl-kernel-source

Then the wireless network can be used, with the ifconfig command to find that there is a eth1

Next toss the desktop environment, install the Gnome-shell, directly from the System software Center download, install and log off on it.

= = = Jenny is installed with the second method, the 4 commands are completed, the first execution time is longer, you have to wait patiently. After the command is executed, the wireless signal is found, which is magical.

Dell Inspiorn 14VR 1616b Ubuntu Wireless card problem