Instalei o driver baixado desse site:
http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=13&PFid=5&Level=5&Conn=4&DownTypeID=3&GetDown=false#2 e funcionou a conexão com cabo.
Fiz os comandos que você pediu:
sudo update-pciidsDownloaded daily snapshot dated 2012-12-17 03:15:02
sudo update-usbids--2012-12-17 19:06:31--
http://www.linux-usb.org/usb.idsResolving
www.linux-usb.org... 216.34.181.97
Connecting to
www.linux-usb.org|216.34.181.97|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 494711 (483K) [text/plain]
Saving to: `/var/lib/usbutils/usb.ids.new'
100%[======================================>] 494,711 30.3K/s in 17s
2012-12-17 19:06:50 (28.3 KB/s) - `/var/lib/usbutils/usb.ids.new' saved [494711/494711]
Done.
sudo lshw -C network *-network
description: Ethernet interface
product: RTL8111/8168B PCI Express Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:05:00.0
logical name: eth0
version: 06
serial: 18:03:73:5e:3b:22
size: 100MB/s
capacity: 1GB/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8168 driverversion=8.034.00-NAPI duplex=full ip=192.168.0.105 latency=0 link=yes multicast=yes port=twisted pair speed=100MB/s
resources: irq:51 ioport:d000(size=256) memory:f1104000-f1104fff memory:f1100000-f1103fff
*-network UNCLAIMED
description: Network controller
product: Centrino Wireless-N 1030 [Rainbow Peak]
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:09:00.0
version: 34
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: latency=0
resources: memory:f7a00000-f7a01fff
sudo lshw -C sound *-multimedia
description: Audio device
product: 6 Series/C200 Series Chipset Family High Definition Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 05
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:50 memory:f7c00000-f7c03fff