Estranho². Ao quadrado, pq não havia nenhuma indicação desse tutorial em particular, pra funcionar.
Além disso, o tutorial indicava problemas com placas Broadcomm, e a sua placa --- que agora está aparecendo, mais uma estranheza --- é uma RTL8192SEVA...
Bem, repita os comandos de identificação, vamos ver a situação de seu sistema.
sudo lshw -C network
iwconfig wlan0
ifconfig -a
nm-tool
rfkill list wifi
sudo lshw -C network *-network
description: Wireless interface
product: RTL8191SEvB Wireless LAN Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:05:00.0
logical name: wlan0
version: 10
serial: 48:5d:60:43:e6:6d
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl819xSE driverversion=0017.0507.2010 firmware=63 latency=0 link=no multicast=yes wireless=802.11bgn
resources: irq:18 ioport:3000(size=256) memory:f0500000-f0503fff
*-network
description: Ethernet interface
product: JMC250 PCI Express Gigabit Ethernet Controller
vendor: JMicron Technology Corp.
physical id: 0
bus info: pci@0000:06:00.0
logical name: eth0
version: 05
serial: 00:90:f5:95:22:06
size: 100Mbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm pciexpress msix msi bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=jme driverversion=1.0.7 duplex=full latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:43 memory:f0610000-f0613fff ioport:4400(size=128) ioport:4000(size=256) memory:f0600000-f060ffff memory:c0600000-c060ffff
iwconfig wlan0wlan0 802.11bgn Nickname:"rtl8191SEVA2"
Mode:Managed Frequency=2.417 GHz Access Point: Not-Associated
Bit Rate:300 Mb/s
Retry:on RTS thr:off Fragment thr:off
Power Management:off
Link Quality=10/100 Signal level=0 dBm Noise level=-100 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
iwconfig wlan0wlan0 802.11bgn Nickname:"rtl8191SEVA2"
Mode:Managed Frequency=2.417 GHz Access Point: Not-Associated
Bit Rate:300 Mb/s
Retry:on RTS thr:off Fragment thr:off
Power Management:off
Link Quality=10/100 Signal level=0 dBm Noise level=-100 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
ifconfig -aeth0 Link encap:Ethernet Endereço de HW 00:24:21:89:34:ed
endereço inet6: fe80::290:f5ff:fe95:2206/64 Escopo:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Métrica:1
pacotes RX:1697 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:1719 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1000
RX bytes:1414631 (1.4 MB) TX bytes:323421 (323.4 KB)
IRQ:43
lo Link encap:Loopback Local
inet end.: 127.0.0.1 Masc:255.0.0.0
endereço inet6: ::1/128 Escopo:Máquina
UP LOOPBACK RUNNING MTU:16436 Métrica:1
pacotes RX:1052 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:1052 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:0
RX bytes:80472 (80.4 KB) TX bytes:80472 (80.4 KB)
ppp0 Link encap:Protocolo Ponto-a-Ponto
inet end.: 189.71.0.87 P-a-P:200.217.90.64 Masc:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Métrica:1
pacotes RX:1662 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:1666 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:3
RX bytes:1375725 (1.3 MB) TX bytes:281952 (281.9 KB)
vboxnet0 Link encap:Ethernet Endereço de HW 0a:00:27:00:00:00
BROADCAST MULTICAST MTU:1500 Métrica:1
pacotes RX:0 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:0 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
wlan0 Link encap:Ethernet Endereço de HW 48:5d:61:44:e6:6d
UP BROADCAST RUNNING MULTICAST MTU:1500 Métrica:1
pacotes RX:0 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:0 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
IRQ:18 Memória:f8568000-f8568100
wlan0:avahi Link encap:Ethernet Endereço de HW 48:5d:61:44:e6:6d
inet end.: 169.254.8.160 Bcast:169.254.255.255 Masc:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Métrica:1
IRQ:18 Memória:f8568000-f8568100
nm-toolNetworkManager Tool
State: connected
- Device: wlan0 ----------------------------------------------------------------
Type: 802.11 WiFi
Driver: rtl819xSE
State: unmanaged
Default: no
HW Address: 48:5D:61:44:E6:6D
Capabilities:
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points
- Device: eth0 [Oi Velox] -----------------------------------------------------
Type: Wired
Driver: jme
State: connected
Default: yes
HW Address: 00:24:21:89:34:ED
Capabilities:
Carrier Detect: yes
Speed: 100 Mb/s
Wired Properties
Carrier: on
IPv4 Settings:
Address: 189.71.0.87
Prefix: 32 (255.255.255.255)
Gateway: 200.217.90.64
DNS: 200.222.145.84
DNS: 200.149.55.142
rfkill list wifi0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no