Bonjour. J'ai le même problème de connexion wifi. J'ai effectué la manip mais sans succès.
Voici l'analyse:
cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS"
lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 1bcf:288a Sunplus Innovation Technology Inc.
Bus 002 Device 003: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 002 Device 004: ID 1058:0704 Western Digital Technologies, Inc. Passport External HDD
Bus 002 Device 007: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 006: ID 0a93:0103 C Technologies AB
lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)
02:00.0 Ethernet controller: Broadcom Corporation NetLink BCM57785 Gigabit Ethernet PCIe (rev 10)
02:00.1 SD Host controller: Broadcom Corporation NetXtreme BCM57765 Memory Card Reader (rev 10)
02:00.2 System peripheral: Broadcom Corporation Device 16be (rev 10)
02:00.3 System peripheral: Broadcom Corporation Device 16bf (rev 10)
03:00.0 Network controller: Broadcom Corporation BCM43227 802.11b/g/n
lspci -nn | grep -i net
02:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM57785 Gigabit Ethernet PCIe [14e4:16b5] (rev 10)
02:00.1 SD Host controller [0805]: Broadcom Corporation NetXtreme BCM57765 Memory Card Reader [14e4:16bc] (rev 10)
03:00.0 Network controller [0280]: Broadcom Corporation BCM43227 802.11b/g/n [14e4:4358]
sudo lshw -C network
*-network
description: Ethernet interface
produit: NetLink BCM57785 Gigabit Ethernet PCIe
fabriquant: Broadcom Corporation
identifiant matériel: 0
information bus: pci@0000:02:00.0
nom logique: eth0
version: 10
numéro de série: b8:70:f4:e2:6f:5b
taille: 100Mbit/s
capacité: 1Gbit/s
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi msix pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.121 duplex=full firmware=sb ip=192.168.1.40 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
ressources: irq:16 mémoire:c0430000-c043ffff mémoire:c0440000-c044ffff mémoire:c0450000-c04507ff
*-network NON-RÉCLAMÉ
description: Network controller
produit: BCM43227 802.11b/g/n
fabriquant: Broadcom Corporation
identifiant matériel: 0
information bus: pci@0000:03:00.0
version: 00
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list
configuration: latency=0
ressources: mémoire:c0500000-c0503fff
lsmod
Module Size Used by
nls_iso8859_1 12617 1
nls_cp437 12751 1
vfat 17308 1
fat 55605 1 vfat
rfcomm 38139 0
bnep 17830 2
bluetooth 158438 10 rfcomm,bnep
parport_pc 32114 0
ppdev 12849 0
binfmt_misc 17292 1
snd_hda_codec_hdmi 31775 1
snd_hda_codec_realtek 174055 1
joydev 17393 0
snd_hda_intel 32765 3
snd_hda_codec 109562 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 13276 1 snd_hda_codec
snd_pcm 80845 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq_midi 13132 0
psmouse 72919 0
serio_raw 13027 0
snd_rawmidi 25424 1 snd_seq_midi
snd_seq_midi_event 14475 1 snd_seq_midi
snd_seq 51567 2 snd_seq_midi,snd_seq_midi_event
snd_timer 28931 2 snd_pcm,snd_seq
snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq
snd 62064 16 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
uvcvideo 67203 0
videodev 86588 1 uvcvideo
hid_logitech_dj 18177 0
soundcore 14635 1 snd
snd_page_alloc 14108 2 snd_hda_intel,snd_pcm
i915 414603 3
drm_kms_helper 45466 1 i915
drm 197692 4 i915,drm_kms_helper
mei 36570 0
i2c_algo_bit 13199 1 i915
acer_wmi 23612 0
sparse_keymap 13658 1 acer_wmi
wmi 18744 1 acer_wmi
mac_hid 13077 0
video 19068 1 i915
lp 17455 0
parport 40930 3 parport_pc,ppdev,lp
usbhid 41906 1 hid_logitech_dj
hid 77367 2 hid_logitech_dj,usbhid
uas 17699 0
usb_storage 39646 1
sdhci_pci 18324 0
sdhci 28241 1 sdhci_pci
tg3 141369 0
iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
ifconfig
[code]eth0 Link encap:Ethernet HWaddr b8:70:f4:e2:6f:5b
inet adr:192.168.1.40 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: fe80::ba70:f4ff:fee2:6f5b/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:2680 erreurs:0 :0 overruns:0 frame:0
TX packets:2513 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:2669856 (2.6 MB) Octets transmis:235272 (235.2 KB)
Interruption:16
lo Link encap:Boucle locale
inet adr:127.0.0.1 Masque:255.0.0.0
adr inet6: ::1/128 Scope:Hôte
UP LOOPBACK RUNNING MTU:16436 Metric:1
Packets reçus:967 erreurs:0 :0 overruns:0 frame:0
TX packets:967 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:0
Octets reçus:69672 (69.6 KB) Octets transmis:69672 (69.6 KB)
sudo iwlist scan
lo Interface doesn't support scanning.
eth0 Interface doesn't support scanning.
uname -r -m
3.2.0-24-generic-pae i686
cat /etc/network/interfaces
auto lo
iface lo inet loopback
nm-tool
NetworkManager Tool
State: connected (global)
- Device: eth0 [Connexion filaire 1] ------------------------------------------
Type: Wired
Driver: tg3
State: connected
Default: yes
HW Address: B8:70:F4:E2:6F:5B
Capabilities:
Carrier Detect: yes
Speed: 100 Mb/s
Wired Properties
Carrier: on
IPv4 Settings:
Address: 192.168.1.40
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1
DNS: 192.168.1.1
sudo rfkill list
0: acer-wireless: Wireless LAN
Soft blocked: no
Hard blocked: no[/code]