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#1 Le 25/01/2015, à 19:59
- esquirou
wifi instable sous Ubuntu 14.04 avec BCM4313 [RESOLU]
Bonjour
J'ai récemment installé Ubuntu 14.04 sur un netbook Acer Aspire One et je me suis trouvé confronté à une instabilité du wifi. Une fois connecté, l'internet ne parvenait plus au bout d'un quart d'heure voire de cinq minutes bien que wifimanager m'indiquait que j'étais toujours connecté à ma live box. Obligé de me déconnecter et reconnecter pour retrouver l'internet. Ma carte wifi est un Wireless Network Adapter de marque broadcom corporation (BCM4313) . J'ai vu dans le forum que cette carte avait posé des problèmes mais que depuis trusty les pilotes Broadcom sont téléchargés à l'installation. Pourtant, semble-t-il certains rencontrent encore des difficultés sous Ubuntun 14.04 (voir post forum.ubuntu-fr.org/viewtopic.php?pid=18091021). Je ne sais si l'instabilité de mon wifi vient de l'absence du pilote adéquat (auquel cas, semble-t-il il faut faire sudo apt-get purge bcmwl-kernel-source broadcom-sta-common broadcom-sta-source puis sudo apt--get install b43-fwcutter firmware -b43-installer ) ou du filtrage au niveau de ma box. Merci pour votre aide.
cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.1 LTS"
lsusb
Bus 002 Device 002: ID 0402:7675 ALi Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 14h Processor Root Complex
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler [Radeon HD 6250]
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler HDMI Audio
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode]
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller (rev 42)
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA) (rev 40)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 LPC host controller (rev 40)
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to PCI Bridge (rev 40)
00:15.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB700/SB800/SB900 PCI to PCI bridge (PCIE port 0)
00:15.2 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB900 PCI to PCI bridge (PCIE port 2)
00:15.3 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB900 PCI to PCI bridge (PCIE port 3)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 0 (rev 43)
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 6
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 5
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 7
06:00.0 Ethernet controller: Qualcomm Atheros AR8152 v2.0 Fast Ethernet (rev c1)
07:00.0 Network controller: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01)
sudo lshw -C network
*-network
description: Ethernet interface
produit: AR8152 v2.0 Fast Ethernet
fabriquant: Qualcomm Atheros
identifiant matériel: 0
information bus: pci@0000:06:00.0
nom logique: eth0
version: c1
numéro de série: b8:70:f4:77:58:ce
capacité: 100Mbit/s
bits: 64 bits
horloge: 33MHz
fonctionnalités: 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=1.0.1.1-NAPI latency=0 link=no multicast=yes port=twisted pair
ressources: irq:42 mémoire:90200000-9023ffff portE/S:2000(taille=128)
*-network
description: Interface réseau sans fil
produit: BCM4313 802.11bgn Wireless Network Adapter
fabriquant: Broadcom Corporation
identifiant matériel: 0
information bus: pci@0000:07:00.0
nom logique: wlan0
version: 01
numéro de série: ec:55:f9:b0:4a:77
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl0 driverversion=6.30.223.141 (r415941) ip=192.168.1.18 latency=0 multicast=yes wireless=IEEE 802.11abg
ressources: irq:19 mémoire:90100000-90103fff
lsmod
Module Size Used by
michael_mic 12612 8
arc4 12608 4
rfcomm 69160 0
bnep 19624 2
bluetooth 391136 10 bnep,rfcomm
lib80211_crypt_tkip 17619 0
wl 4207846 0
snd_hda_codec_conexant 57441 1
snd_hda_codec_hdmi 46368 1
snd_hda_intel 56451 10
snd_hda_codec 192906 3 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel
uvcvideo 80885 0
videobuf2_vmalloc 13216 1 uvcvideo
videobuf2_memops 13362 1 videobuf2_vmalloc
acer_wmi 32522 0
videobuf2_core 40664 1 uvcvideo
snd_hwdep 13602 1 snd_hda_codec
snd_pcm 102099 3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
videodev 134688 2 uvcvideo,videobuf2_core
sparse_keymap 13948 1 acer_wmi
snd_page_alloc 18710 2 snd_pcm,snd_hda_intel
snd_seq_midi 13324 0
snd_seq_midi_event 14899 1 snd_seq_midi
snd_rawmidi 30144 1 snd_seq_midi
snd_seq 61560 2 snd_seq_midi_event,snd_seq_midi
kvm_amd 60026 0
lib80211 14381 2 wl,lib80211_crypt_tkip
snd_seq_device 14497 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 29482 2 snd_pcm,snd_seq
kvm 455835 1 kvm_amd
cfg80211 484040 1 wl
joydev 17381 0
snd 69322 31 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi
serio_raw 13462 0
k10temp 13126 0
soundcore 12680 1 snd
sp5100_tco 13979 0
parport_pc 32701 0
i2c_piix4 22155 0
ppdev 17671 0
mac_hid 13205 0
lp 17759 0
parport 42348 3 lp,ppdev,parport_pc
radeon 1522640 4
i2c_algo_bit 13413 1 radeon
ttm 85150 1 radeon
psmouse 106714 0
drm_kms_helper 55071 1 radeon
atl1c 46086 0
drm 303102 6 ttm,drm_kms_helper,radeon
ahci 25819 2
libahci 32716 1 ahci
wmi 19177 1 acer_wmi
video 19476 1 acer_wmi
ums_realtek 18029 0
usb_storage 62209 1 ums_realtek
iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11abg ESSID:"Livebox-5950"
Mode:Managed Frequency:2.412 GHz Access Point: 00:0B:3B:98:89:ED
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
ifconfig
eth0 Link encap:Ethernet HWaddr b8:70:f4:77:58:ce
UP BROADCAST MULTICAST MTU:1500 Metric:1
Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)
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:65536 Metric:1
Packets reçus:1829 erreurs:0 :0 overruns:0 frame:0
TX packets:1829 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:0
Octets reçus:147308 (147.3 KB) Octets transmis:147308 (147.3 KB)
wlan0 Link encap:Ethernet HWaddr ec:55:f9:b0:4a:77
inet adr:192.168.1.18 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: fe80::ee55:f9ff:feb0:4a77/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:4613 erreurs:0 :0 overruns:0 frame:46037
TX packets:4657 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:3823128 (3.8 MB) Octets transmis:520862 (520.8 KB)
Interruption:19
sudo iwlist scan
eth0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: 00:0B:3B:98:89:ED
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=59/70 Signal level=-51 dBm
Encryption key:on
ESSID:"Livebox-5950"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000000000000000
Extra: Last beacon: 44ms ago
IE: Unknown: 000C4C697665626F782D35393530
IE: Unknown: 010482848B96
IE: Unknown: 030101
IE: Unknown: 2A0104
IE: Unknown: 32080C1218243048606C
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
Cell 02 - Address: 06:19:70:33:4E:7A
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=40/70 Signal level=-70 dBm
Encryption key:off
ESSID:"orange"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000000000000000
Extra: Last beacon: 44ms ago
IE: Unknown: 00066F72616E6765
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD180050F2020101870003A4000027A4000042435E0062322F00
IE: Unknown: 2D1A0C101BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606080800000000000000000000000000000000000000
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD0A00037F04010000000000
IE: Unknown: 0706465220010D14
Cell 03 - Address: 00:19:70:33:4E:7A
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=44/70 Signal level=-66 dBm
Encryption key:on
ESSID:"Livebox-5950"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000000000000000
Extra: Last beacon: 44ms ago
IE: Unknown: 000C4C697665626F782D35393530
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD180050F2020101870003A4000027A4000042435E0062322F00
IE: Unknown: 2D1A0C101BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606080800000000000000000000000000000000000000
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD0A00037F04010000000000
IE: Unknown: 0706465220010D14
IE: Unknown: DD8B0050F204104A0001101044000102103B0001031047001000000000000010000000001970334E7A10210005536167656D1023000F4C697665626F78204654544820763210240007422E312E302E301042000F414E313331353032353735333438331054000800060050F20400011011000F4C697665626F782046545448207632100800020086103C000101
cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
nm tool
NetworkManager Tool
State: connected (global)
- Device: wlan0 [Livebox-5950] ------------------------------------------------
Type: 802.11 WiFi
Driver: wl
State: connected
Default: yes
HW Address: EC:55:F9:B0:4A:77
Capabilities:
Speed: 54 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
orange: Infra, 06:19:70:33:4E:7A, Freq 2437 MHz, Rate 54 Mb/s, Strength 45
Livebox-5950: Infra, 00:19:70:33:4E:7A, Freq 2437 MHz, Rate 54 Mb/s, Strength 45 WPA WPA2
*Livebox-5950: Infra, 00:0B:3B:98:89:ED, Freq 2412 MHz, Rate 54 Mb/s, Strength 79 WPA
IPv4 Settings:
Address: 192.168.1.18
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1
DNS: 192.168.1.1
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: atl1c
State: unavailable
Default: no
HW Address: B8:70:F4:77:58:CE
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
uname -r -m
3.13.0-44-generic x86_64
sudo rfkill list
0: acer-wireless: Wireless LAN
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
2: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: no
[Modération : merci à l'avenir d'utiliser les balises code (explications ici).]
Dernière modification par esquirou (Le 08/02/2015, à 07:52)
Hors ligne
#2 Le 29/01/2015, à 10:01
- esquirou
Re : wifi instable sous Ubuntu 14.04 avec BCM4313 [RESOLU]
Personne ne peut m'aider ?
Hors ligne
#3 Le 08/02/2015, à 07:48
- esquirou
Re : wifi instable sous Ubuntu 14.04 avec BCM4313 [RESOLU]
La solution est venue du post http://forum.ubuntu-fr.org/viewtopic.php?id=1776741 posté après le mien.Merci à Clhiver qui donne les deux manip à faire pour sortir du pétrin avec cette carte wifi :
sudo apt-get install linux-firmware-nonfree
sudo apt-get purge bcmwl-kernel-source
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