运行 Ubuntu 14.04.1 的电脑无法检测到以太网，我的台式机型号是 Dell OptiPlex 5040。安装完成后无法检测到以太网，并且 Dell 网站上也没有此型号的网络驱动程序。我如何在这台电脑上使用网络
是否配置
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:24 errors:0 dropped:0 overruns:0 frame:0
TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1800 (1.8 KB) TX bytes:1800 (1.8 KB)
lshw-C 网络
*-network UNCLAIMED
description: Ethernet controller
product: Ethernet Connection (2) I219-V
vendor: Intel Corporation
physical id: 1f.6
bus info: pci@0000:00:1f.6
version: 31
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list
configuration: latency=0
resources: memory:f7100000-f711ffff