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jonbat

Déconnexion intempestive WIFI - Ubuntu 12.04

Bonjour,

Tout d'abord je vous souhaite à tous une très bonne année 2014 !

Je sollicite votre aide concernant un problème de connexion en wifi. Je parviens à me connecter à ma freebox sans problème, mais je perds la connexion assez souvent mais de manière irrégulière... Je me déconnecte puis me reconnecte via l'icône wifi de la "barre des tâches", mais je suis obligé de réitérer ces opérations plusieurs fois pour avoir une connexion stable... du moins jusqu'à la prochaine déconnexion...

cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.3 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 004: ID 06f8:e032 Guillemot Corp. HWGUm-54 [Hercules Wireless G Ultra Mini Key]
Bus 002 Device 008: ID 03f0:6c11 Hewlett-Packard 
Bus 002 Device 004: ID 046d:c31d Logitech, Inc. 
Bus 002 Device 005: ID 046d:c016 Logitech, Inc. Optical Wheel Mouse

lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (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 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b5)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)
00:1c.4 PCI bridge: Intel Corporation 82801 PCI Bridge (rev b5)
00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation H61 Express Chipset Family LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation GF116 [GeForce GTS 450 Rev. 2] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GF116 High Definition Audio Controller (rev a1)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
06:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 01)

lspci -nn | grep -i net
04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)

lspci -k
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
	Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
	Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard
	Kernel driver in use: mei
	Kernel modules: mei
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
	Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard
	Kernel driver in use: ehci_hcd
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
	Subsystem: ASUSTeK Computer Inc. Device 8445
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd-hda-intel
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b5)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.4 PCI bridge: Intel Corporation 82801 PCI Bridge (rev b5)
00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (rev b5)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
	Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard
	Kernel driver in use: ehci_hcd
00:1f.0 ISA bridge: Intel Corporation H61 Express Chipset Family LPC Controller (rev 05)
	Subsystem: ASUSTeK Computer Inc. Device 844d
	Kernel modules: iTCO_wdt
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family SATA AHCI Controller (rev 05)
	Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard
	Kernel driver in use: ahci
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
	Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard
	Kernel modules: i2c-i801
01:00.0 VGA compatible controller: NVIDIA Corporation GF116 [GeForce GTS 450 Rev. 2] (rev a1)
	Subsystem: CardExpert Technology Device 0401
	Kernel driver in use: nvidia
	Kernel modules: nvidia_304, nouveau, nvidiafb
01:00.1 Audio device: NVIDIA Corporation GF116 High Definition Audio Controller (rev a1)
	Subsystem: CardExpert Technology Device 0401
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd-hda-intel
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
	Subsystem: ASUSTeK Computer Inc. P8P67 and other motherboards
	Kernel driver in use: r8169
	Kernel modules: r8169
06:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 01)

sudo lshw -C network
*-network               
       description: Ethernet interface
       produit: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       fabriquant: Realtek Semiconductor Co., Ltd.
       identifiant matériel: 0
       information bus: pci@0000:04:00.0
       nom logique: eth0
       version: 06
       numéro de série: f4:6d:04:da:19:11
       taille: 10Mbit/s
       capacité: 1Gbit/s
       bits: 64 bits
       horloge: 33MHz
       fonctionnalités: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       ressources: irq:47 portE/S:d000(taille=256) mémoire:f4104000-f4104fff mémoire:f4100000-f4103fff
  *-network
       description: Interface réseau sans fil
       identifiant matériel: 3
       information bus: usb@1:1.4
       nom logique: wlan0
       numéro de série: 00:08:d3:90:d3:54
       fonctionnalités: ethernet physical wireless
       configuration: broadcast=yes driver=r8712u ip=192.168.1.30 multicast=yes wireless=IEEE 802.11bgn

lsmod
Module                  Size  Used by
des_generic            21415  0 
md4                    12595  0 
nls_utf8               12557  1 
cifs                  287397  2 
rfcomm                 47604  0 
bnep                   18281  2 
bluetooth             180113  10 rfcomm,bnep
binfmt_misc            17540  1 
snd_hda_codec_hdmi     32530  4 
joydev                 17693  0 
eeepc_wmi              13109  0 
asus_wmi               24456  1 eeepc_wmi
ppdev                  17113  0 
sparse_keymap          13890  1 asus_wmi
usblp                  18307  0 
snd_hda_codec_realtek   224173  1 
nvidia              11308613  77 
r8712u                189646  0 
psmouse                97519  0 
serio_raw              13211  0 
usbhid                 47238  0 
hid                    99883  1 usbhid
snd_seq_midi           13324  0 
snd_rawmidi            30748  1 snd_seq_midi
snd_seq_midi_event     14899  1 snd_seq_midi
snd_seq                61929  2 snd_seq_midi,snd_seq_midi_event
snd_hda_intel          33719  11 
snd_hda_codec         127706  3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep              17764  1 snd_hda_codec
snd_pcm                97275  4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_timer              29990  2 snd_seq,snd_pcm
snd_seq_device         14540  3 snd_seq_midi,snd_rawmidi,snd_seq
parport_pc             32866  1 
video                  19651  0 
wmi                    19256  1 asus_wmi
snd                    79041  31 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_rawmidi,snd_seq,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer,snd_seq_device
mac_hid                13253  0 
mei                    41616  0 
soundcore              15091  1 snd
snd_page_alloc         18529  2 snd_hda_intel,snd_pcm
lp                     17799  0 
parport                46562  3 ppdev,parport_pc,lp
usb_storage            49198  0 
r8169                  62190  0

iwconfig
lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"Freebox-57DE89"  Nickname:"rtl_wifi"
          Mode:Managed  Frequency:2.417 GHz  Access Point: F4:CA:E5:A3:10:80   
          Bit Rate:72 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=100/100  Signal level=100/100  Noise level=0/100
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

eth0      no wireless extensions.

ifconfig
eth0      Link encap:Ethernet  HWaddr f4:6d:04:da:19:11  
          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)
          Interruption:47 Adresse de base:0x8000 

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:20868 erreurs:0 :0 overruns:0 frame:0
          TX packets:20868 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:1727731 (1.7 MB) Octets transmis:1727731 (1.7 MB)

wlan0     Link encap:Ethernet  HWaddr 00:08:d3:90:d3:54  
          inet adr:192.168.1.30  Bcast:192.168.1.255  Masque:255.255.255.0
          adr inet6: fe80::208:d3ff:fe90:d354/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:468735 erreurs:0 :79023 overruns:0 frame:0
          TX packets:248141 errors:0 dropped:2 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:343841366 (343.8 MB) Octets transmis:34908585 (34.9 MB)

sudo iwlist scan
lo        Interface doesn't support scanning.

wlan0     Scan completed :
          Cell 01 - Address: F4:CA:E5:A3:10:80
                    ESSID:"Freebox-57DE89"
                    Protocol:IEEE 802.11bgn
                    Mode:Master
                    Frequency:2.417 GHz (Channel 2)
                    Encryption key:on
                    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; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Extra:wpa_ie=dd160050f20101000050f20401000050f20401000050f202
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    Signal level=100/100  
          Cell 02 - Address: F4:CA:E5:A3:10:82
                    ESSID:"FreeWifi_secure"
                    Protocol:IEEE 802.11bgn
                    Mode:Master
                    Frequency:2.417 GHz (Channel 2)
                    Encryption key:on
                    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; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Extra:rsn_ie=30180100000fac020200000fac04000fac020100000fac010c00
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : 802.1x
                    Signal level=100/100  
          Cell 03 - Address: F4:CA:E5:A3:10:81
                    ESSID:"FreeWifi"
                    Protocol:IEEE 802.11bgn
                    Mode:Master
                    Frequency:2.417 GHz (Channel 2)
                    Encryption key:off
                    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; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Signal level=96/100  

eth0      Interface doesn't support scanning.

uname -r -m
3.2.0-58-generic x86_64

cat  /etc/network/interfaces
auto lo
iface lo inet loopback

nm-tool
NetworkManager Tool

State: connected (global)

- Device: wlan0  [Freebox-57DE89] ----------------------------------------------
  Type:              802.11 WiFi
  Driver:            r8712u
  State:             connected
  Default:           yes
  HW Address:        00:08:D3:90:D3:54

  Capabilities:
    Speed:           72 Mb/s

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points (* = current AP)
    FreeWifi_secure: Infra, F4:CA:E5:A3:10:82, Freq 2417 MHz, Rate 54 Mb/s, Strength 100 WPA2 Enterprise
    FreeWifi:        Infra, F4:CA:E5:A3:10:81, Freq 2417 MHz, Rate 54 Mb/s, Strength 100
    *Freebox-57DE89: Infra, F4:CA:E5:A3:10:80, Freq 2417 MHz, Rate 54 Mb/s, Strength 100 WPA

  IPv4 Settings:
    Address:         192.168.1.30
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.1.254

    DNS:             192.168.1.254


- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             unavailable
  Default:           no
  HW Address:        F4:6D:04:DA:19:11

  Capabilities:
    Carrier Detect:  yes

  Wired Properties
    Carrier:         off

sudo rfkill list
Cette commande ne retourne rien...

Par avance merci de votre aide, ou au moins de vous pencher sur mon souci...

rocherd

Re : Déconnexion intempestive WIFI - Ubuntu 12.04

Bonjour

J'avais eu le même genre de problème que vous il y a quelque temps (mais avec une autre clé wifi). Dans mon cas, le problème venait d'un défaut dans le pilote de la clé wifi pré-installé dans Ubuntu. J'ai résolu le problème en installant un driver téléchargé sur le site de Realtek.

Selon les retours de commandes postés, votre clé wifi semble être une Hercules HWGUm-54. D'après ce fil, le chipset correspondant est RTL8192su. Vous pouvez télécharger un pilote correspondant à ce chipset sur cette page (attention, bien prendre le driver correspondant au chipset RTL8192SU, et non RTL8191SU).

Pour installer le pilote, il vous faut d'abord télécharger les outils de compilation :

sudo apt-get install build-essential

Ensuite décompressez l’archive dans votre répertoire personnel. Vous devriez alors pouvoir installer le pilote via les commandes suivantes :

cd ~/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405
sudo ./install.sh

Peut-être vous faudra-t-il blacklister le pilote actuellement utilisé.

Une autre solution serait d'installer le pilote Windows via Ndiswrapper. Pour cela, voir le fil susmentionné.

Bonne chance !

jonbat

Re : Déconnexion intempestive WIFI - Ubuntu 12.04

Bonjour,
J'ai lu votre réponse mais avant d'essayer, je ne sais pas comment "blacklister" le pilote actuellement utilisé. Je ne voudrais donc pas me retrouver bloquer... Pourriez-vous m'indiquer comment m'y prendre le cas échéant?
Merci !