Wi-fi não funciona no ubuntu 12.04

[Wilsonn]

Após atualização meu notebook "infoway note w7415 ss free – dos" "Ubuntu 12.04.3 LTS" não reconhece nenhuma rede wi-fi. A luz do sinal wi-fi está acesa, porém não consigo ativar a rede sem fio nas configurações do sistema.

colo abaixo resultado dos comandos:
sudo lshw -C network
iwconfig
ifconfig -a
nm-tool
rfkill list wifi

já tentei o "rfkill unblock all" e não resolveu.

usuario@administrador-Infoway:~$ sudo lshw -C network
[sudo] password for usuario:
  *-network DESABILITADO 
       descrição: Interface sem fio
       produto: RTL8191SEvB Wireless LAN Controller
       fabricante: Realtek Semiconductor Co., Ltd.
       physical id: 0
       informações do barramento: pci@0000:04:00.0
       nome lógico: wlan0
       versão: 10
       serial: 74:f0:6d:0b:da:40
       largura: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuração: broadcast=yes driver=rtl8192se driverversion=3.2.0-53-generic-pae firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
       recursos: irq:18 ioport:3000(tamanho=256) memória:f8000000-f8003fff
  *-network
       descrição: Ethernet interface
       produto: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       fabricante: Realtek Semiconductor Co., Ltd.
       physical id: 0
       informações do barramento: pci@0000:06:00.0
       nome lógico: eth0
       versão: 03
       serial: 00:40:a7:1e:98:3a
       tamanho: 100Mbit/s
       capacidade: 1Gbit/s
       largura: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuração: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8168d-1.fw ip=192.168.0.101 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
       recursos: irq:44 ioport:4000(tamanho=256) memória:fa000000-fa000fff memória:f4000000-f4003fff memória:f4020000-f403ffff
usuario@administrador-Infoway:~$ iwconfig
lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:off/any 
          Mode:Managed  Access Point: Not-Associated   Tx-Power=off   
          Retry  long limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:on
         
eth0      no wireless extensions.

usuario@administrador-Infoway:~$ ifconfig -a
eth0      Link encap:Ethernet  Endereço de HW 00:40:a7:1e:98:3a 
          inet end.: 192.168.0.101  Bcast:192.168.0.255  Masc:255.255.255.0
          endereço inet6: fe80::240:a7ff:fe1e:983a/64 Escopo:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Métrica:1
          pacotes RX:23795 erros:0 descartados:0 excesso:0 quadro:0
          Pacotes TX:36048 erros:0 descartados:0 excesso:0 portadora:0
          colisões:0 txqueuelen:1000
          RX bytes:5948325 (5.9 MB) TX bytes:49198526 (49.1 MB)
          IRQ:44 Endereço de E/S:0xc000

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:44 erros:0 descartados:0 excesso:0 quadro:0
          Pacotes TX:44 erros:0 descartados:0 excesso:0 portadora:0
          colisões:0 txqueuelen:0
          RX bytes:2640 (2.6 KB) TX bytes:2640 (2.6 KB)

wlan0     Link encap:Ethernet  Endereço de HW 74:f0:6d:0b:da:40 
          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)

usuario@administrador-Infoway:~$ nm-tool

NetworkManager Tool

State: connected (global)


** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation

** (process:3291): WARNING **: error: cannot retrieve connection: uid 1001 has no permission to perform this operation
- Device: F4:F5:A5:A9:2D:A8 ----------------------------------------------------
  Type:              Bluetooth
  Driver:            bluez
  State:             disconnected
  Default:           no

  Capabilities:


- Device: eth0  [Conexão com fio 1] -------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             connected
  Default:           yes
  HW Address:        00:40:A7:1E:98:3A

  Capabilities:
    Carrier Detect:  yes
    Speed:           100 Mb/s

  Wired Properties
    Carrier:         on

  IPv4 Settings:
    Address:         192.168.0.101
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.0.1

    DNS:             192.168.0.1


- Device: wlan0 ----------------------------------------------------------------
  Type:              802.11 WiFi
  Driver:            rtl8192se
  State:             unavailable
  Default:           no
  HW Address:        74:F0:6D:0B:DA:40

  Capabilities:

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points


usuario@administrador-Infoway:~$ rfkill list wifi
1: phy0: Wireless LAN
   Soft blocked: no
   Hard blocked: yes

[Tota]

usuario@administrador-Infoway:~$ rfkill list wifi
1: phy0: Wireless LAN
   Soft blocked: no
   Hard blocked: yes

Olá

Como pode ver, sua placa está desconectada por hardware (botão liga/desliga ou combinação de teclas)

Veja no manual do note como "ligar" sua placa