Fórum Ubuntu Linux - PT
Suporte Técnico => Internet, Redes e Segurança => Tópico iniciado por: antonio_ctba em 21 de Setembro de 2011, 20:56
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Eu tenho um notebook Dell n4030, rodando Ubuntu 10.04 LTS 64 bits - Lucid Lynx..
Minha placa broadcom está instalada e conectando na rede Wi-Fi, porém em poucos segundos ela desconecta e fica procurando rede. Após um minuto tentando conectar, o icone da rede Wi-fi, na barra superior próximo ao relógio, simplesmente desaparece. Já tentei instalar o driver que o Ubuntu sugeri, tentei compilar o driver existente na página da broadcom e segui um tutorial para debian. Ambos sem surtir efeito.
sudo lshw -C network
*-network
description: Wireless interface
product: Broadcom Corporation
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:12:00.0
logical name: eth1
version: 01
serial: c0:cb:38:5b:7e:81
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl1 driverversion=5.60.48.36 latency=0 multicast=yes wireless=IEEE 802.11
resources: irq:17 memory:fbb00000-fbb03fff
*-network
description: Ethernet interface
product: AR8152 v2.0 Fast Ethernet
vendor: Atheros Communications
physical id: 0
bus info: pci@0000:13:00.0
logical name: eth0
version: c1
serial: f0:4d:a2:d6:bc:41
size: 100MB/s
capacity: 100MB/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI duplex=full firmware=N/A ip=7.7.7.4 latency=0 link=yes multicast=yes port=twisted pair speed=100MB/s
resources: irq:30 memory:fba00000-fba3ffff ioport:e000(size=128)
iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
eth1 IEEE 802.11 Access Point: Not-Associated
Link Quality:5 Signal level:238 Noise level:163
Rx invalid nwid:0 invalid crypt:4 invalid misc:0
ifconfig -a
eth0 Link encap:Ethernet HWaddr f0:4d:a2:d6:bc:41
inet addr:7.7.7.4 Bcast:7.7.7.255 Mask:255.255.255.0
inet6 addr: fe80::f24d:a2ff:fed6:bc41/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12538 errors:0 dropped:0 overruns:0 frame:0
TX packets:11002 errors:0 dropped:0 overruns:0 carrier:3
collisions:0 txqueuelen:1000
RX bytes:12187191 (12.1 MB) TX bytes:2110687 (2.1 MB)
Interrupt:30
eth1 Link encap:Ethernet HWaddr c0:cb:38:5b:7e:81
inet6 addr: fe80::c2cb:38ff:fe5b:7e81/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:17 errors:0 dropped:0 overruns:0 frame:4
TX packets:3 errors:6 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:5779 (5.7 KB) TX bytes:407 (407.0 B)
Interrupt:17
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:16436 Metric:1
RX packets:32365 errors:0 dropped:0 overruns:0 frame:0
TX packets:32365 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:8924804 (8.9 MB) TX bytes:8924804 (8.9 MB)
nm-tool
NetworkManager Tool
State: connected
- Device: eth1 [Auto Tonheira] ------------------------------------------------
Type: 802.11 WiFi
Driver: wl
State: connected
Default: yes
HW Address: C0:CB:38:5B:7E:81
Capabilities:
Speed: 1 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
*Tonheira: Infra, 74:EA:3A:EC:D0:BC, Freq 2412 MHz, Rate 0 Mb/s, Strength 100 WPA WPA2
dlink: Infra, 00:1B:11:A3:B2:4E, Freq 2437 MHz, Rate 0 Mb/s, Strength 20 WPA WPA2
IPv4 Settings:
Address: 7.7.7.3
Prefix: 24 (255.255.255.0)
Gateway: 7.7.7.10
DNS: 8.8.8.8
DNS: 200.250.77.87
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: atl1c
State: unmanaged
Default: no
HW Address: F0:4D:A2:D6:BC:41
Capabilities:
Carrier Detect: yes
Speed: 100 Mb/s
Wired Properties
Carrier: on
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Olá antonio,
As informações que você passou não estão consistentes. Um dos comandos acusa que você está conectado por cabo, o outro informa que você está conectado via wireless. Outra coisa, quem configurou esse IP 7.7.7.x no seu roteador? Esse endereço não é de uso livre, isso pode te causar problemas de conexão, caso você tenha o azar de precisar acessar algum site dentro da rede 7.0.0.0/8.
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Segue novo relatório
sudo lshw -C network
*-network
description: Wireless interface
product: Broadcom Corporation
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:12:00.0
logical name: eth1
version: 01
serial: c0:cb:38:5b:7e:81
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl0 driverversion=5.60.48.36 latency=0 multicast=yes wireless=IEEE 802.11
resources: irq:17 memory:fbb00000-fbb03fff
*-network
description: Ethernet interface
product: AR8152 v2.0 Fast Ethernet
vendor: Atheros Communications
physical id: 0
bus info: pci@0000:13:00.0
logical name: eth0
version: c1
serial: f0:4d:a2:d6:bc:41
capacity: 100MB/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI firmware=N/A ip=10.0.0.2 latency=0 link=no multicast=yes port=twisted pair
resources: irq:30 memory:fba00000-fba3ffff ioport:e000(size=128)
iwconfig
lo no wireless extensions.
eth1 IEEE 802.11 Access Point: Not-Associated
Link Quality:5 Signal level:240 Noise level:164
Rx invalid nwid:0 invalid crypt:17 invalid misc:0
eth0 no wireless extensions.
ifconfig -a
eth0 Link encap:Ethernet HWaddr f0:4d:a2:d6:bc:41
inet addr:10.0.0.2 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::f24d:a2ff:fed6:bc41/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:3276 errors:0 dropped:0 overruns:0 frame:0
TX packets:3889 errors:0 dropped:0 overruns:0 carrier:14
collisions:0 txqueuelen:1000
RX bytes:1836262 (1.8 MB) TX bytes:504169 (504.1 KB)
Interrupt:30
eth1 Link encap:Ethernet HWaddr c0:cb:38:5b:7e:81
inet6 addr: fe80::c2cb:38ff:fe5b:7e81/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2382 errors:0 dropped:0 overruns:0 frame:164
TX packets:2418 errors:920 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2046775 (2.0 MB) TX bytes:475588 (475.5 KB)
Interrupt:17
eth1:avahi Link encap:Ethernet HWaddr c0:cb:38:5b:7e:81
inet addr:169.254.7.202 Bcast:169.254.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:17
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:16436 Metric:1
RX packets:12272 errors:0 dropped:0 overruns:0 frame:0
TX packets:12272 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2910755 (2.9 MB) TX bytes:2910755 (2.9 MB)
nm-tool
NetworkManager Tool
State: connected
** (process:3117): WARNING **: error: failed to read connections from org.freedesktop.NetworkManagerUserSettings:
The name org.freedesktop.NetworkManagerUserSettings was not provided by any .service files
- Device: eth1 -----------------------------------------------------------------
Type: 802.11 WiFi
Driver: wl
State: disconnected
Default: no
HW Address: C0:CB:38:5B:7E:81
Capabilities:
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points
Tonheira: Infra, 74:EA:3A:EC:D0:BC, Freq 2412 MHz, Rate 54 Mb/s, Strength 100 WPA WPA2
dlink: Infra, 00:1B:11:A3:B2:4E, Freq 2437 MHz, Rate 0 Mb/s, Strength 20 WPA WPA2
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: atl1c
State: unmanaged
Default: no
HW Address: F0:4D:A2:D6:BC:41
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
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Certo. Vejo que você está usando o driver proprietário da interface Broadcomm. Há vários colegas que fizeram o mesmo recentemente e tiveram problemas, em todos os casos eu recomendei instalar o pacote de firmware da Broadcomm e voltar ao driver nativo.
Pra isso, então, você vai se conectar à internet por cabo, e instalar o pacote "firmware-b43-installer".
sudo apt-get install firmware-b43-installer
Depois que esse pacote estiver instalado, você vai voltar ao gerenciador de drivers proprietários e vai remover o driver da placa de rede.
Quando fizer isso e reiniciar a máquina, a placa não vai mais carregar driver automaticamente; você vai confirmar que o driver nativo está funcionando carregando o driver manualmente:
sudo modprobe -v b43
Se nesse momento você conseguir conectar manualmente, é só editar o arquivo "/etc/modules" e adicionar uma linha com o nome do módulo (no caso, "b43") ao final do arquivo.
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Consegui resolver o problema.
Segui os passos que você passou, porém ainda não tinha funcionado o wireless. Verifiquei os arquivos do /etc/modprobe e comentei uma linha do arquivo
broadcom-sta-common.conf..
#blacklist b43
tentei recarregar o módulo e não funcionou. Fiz uma nova busca no google usando o módulo b43 e encontrei esse link
https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx (https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx)
Segui os passos 1 e 2. Instalei o pacote bcmwl-kernel-source :
sudo apt-get update
sudo apt-get install bcmwl-kernel-source
e reinstalei o driver proprietário através do menu System -> Administration -> Hardware Drivers.
Quando reiniciei o wireless voltou a funcionar.
Agradeço a ajuda...