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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

Hors ligne