Eu recentemente re-instalei o Ubuntu 12.04 na minha máquina Dell.
Após a reinstalação, tive problemas na instalação do driver sem fio em Drivers adicionais.
Eu tentei muitas coisas diferentes, removendo o bcmwl-kernel-source e instalando o firmware-b43-lpphy-installer e b43-fwcutter.
Inicialmente, nada aconteceu, mas depois do nada, verifiquei a guia da internet e pude ver minha rede. Eu consegui conectar e usar o wireless o dia todo ontem, mas agora não está funcionando novamente.
Sob o ícone da internet no canto superior direito, o computador informa que a conexão sem fio está ativada, mas as redes sem fio estão desconectadas.
Abaixo, incluí algumas informações.
>lspci -nnk | grep -iA2 net
09:00.0 Ethernet controller [0200]: Marvell Technology Group Ltd.
88E8040 PCI-E Fast Ethernet Controller [11ab:4354] (rev 13)
Subsystem: Dell Device [1028:02aa]
Kernel driver in use: sky2
--
0c:00.0 Network controller [0280]: Broadcom Corporation BCM4312
802.11b/g LP-PHY [14e4:4315] (rev 01) Subsystem: Dell Wireless 1397 WLAN Mini-Card [1028:000c] Kernel driver in use: b43-pci-bridge
>iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11bg ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
lsmod
nls_iso8859_1 12713 0
dm_crypt 23051 0
arc4 12573 2
bnep 18258 2
snd_hda_codec_idt 71153 1
snd_hda_intel 44339 3
parport_pc 28284 0
rfcomm 47864 0
snd_hda_codec 141716 2 snd_hda_codec_idt,snd_hda_intel
ppdev 17113 0
bluetooth 247024 10 bnep,rfcomm
lp 17799 0
b43 392109 0
parport 46562 3 parport_pc,ppdev,lp
snd_hwdep 13668 1 snd_hda_codec
snd_pcm 102477 2 snd_hda_intel,snd_hda_codec
snd_seq_midi 13324 0
joydev 17613 0
mac80211 630977 1 b43
snd_rawmidi 30417 1 snd_seq_midi
snd_seq_midi_event 14899 1 snd_seq_midi
snd_seq 61930 2 snd_seq_midi,snd_seq_midi_event
coretemp 13596 0
snd_timer 29989 2 snd_pcm,snd_seq
uvcvideo 82214 0
snd_seq_device 14497 3 snd_seq_midi,snd_rawmidi,snd_seq
cfg80211 525244 2 b43,mac80211
snd 69533 15 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
gpio_ich 13526 0
videobuf2_core 40785 1 uvcvideo
psmouse 97873 0
soundcore 12680 1 snd
videodev 130053 2 uvcvideo,videobuf2_core
snd_page_alloc 18798 2 snd_hda_intel,snd_pcm
dell_laptop 17425 0
dell_wmi 12681 0
videobuf2_vmalloc 13056 1 uvcvideo
lpc_ich 17144 0
serio_raw 13215 0
videobuf2_memops 13202 1 videobuf2_vmalloc
microcode 23017 0
mac_hid 13253 0
bcma 41244 1 b43
sparse_keymap 13890 1 dell_wmi
dcdbas 14449 1 dell_laptop
hid_generic 12540 0
usbhid 47346 0
hid 105549 2 hid_generic,usbhid
ums_realtek 18256 0
usb_storage 61749 1 ums_realtek
i915 620421 3
wmi 19256 1 dell_wmi
drm_kms_helper 49597 1 i915
ahci 25879 1
drm 287564 4 i915,drm_kms_helper
libahci 31606 1 ahci
i2c_algo_bit 13564 1 i915
sky2 62824 0
video 19652 1 i915
ssb 57842 1 b43
> rfkill listar todos
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
> sudo dpkg -s firmware-b43-lpphy-instalador
Package: firmware-b43-lpphy-installer
Status: install ok installed
Priority: optional
Section: contrib/kernel
Installed-Size: 34
Maintainer: Ubuntu Developers
Architecture: all
Source: b43-fwcutter
Version: 1:015-9
Depends: b43-fwcutter (>= 1:015-9), bzip2, wget
Recommends: linux-image
Conflicts: firmware-b43-installer
Description: Installer package for firmware for the b43 driver (LP-PHY version)
This package installs the firmware needed for usage of the b43 kernel
driver.
.
Supported chipsets:
- BCM4312 (with Low-Power aka LP-PHY)
Original-Maintainer: Fabrizio Regalli
Homepage: http://wireless.kernel.org/en/users/Drivers/b43
> dmesg | grep -e wlan -e b43
[ 20.908424] b43-phy0: Broadcom 4312 WLAN found (core revision 15)
[ 20.952236] b43-phy0: Found PHY: Analog 6, Type 5 (LP), Revision 1
[ 29.164261] b43-phy0: Loading firmware version 478.104 (2008-07-01 00:50:23)
[ 34.704994] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 34.705415] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready