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#1 Le 26/09/2012, à 19:29

Lemure

Probleme Wifi Lenovo T420s

Bonjour à tous !
Je vous explique mon soucis : Lorsque je me connecte au wifi de mon réseau, la connexion marche niquel pendant quelques secondes, puis disparaît après, en m'affichant une page d'erreur DNS. Cela ne vient pas du réseau, puisque l'ordinateur de ma copine le capte sans problèlme.
J'ai la version Xubuntu 12.04.1, la connexion ethernet marche sans soucis, donc je pense que c'est un soucis au niveau des pilotes de la carte wifi ou de sa configuration, mais n'y connaissant rien sous Linux, j'aurais besoin d'aide pour résoudre ce problème.
J'ai un ordinateur portable lenovo T420s, avec une Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01).
Je vous remercie d'avance, en espérant trouver une solution à ce soucis. (J'ai cherché sur le net sur les forums uk, effectué des manips, mais rien n'a bougé, et je ne suis pas sûr de les avoir correctement faite).
Bonne journée smile

Ps: Voici les commandes :

lemure@bebop:~$ cat /etc/lsb-release

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.1 LTS"

lemure@bebop:~$ 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 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 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

lemure@bebop:~$ 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)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (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)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (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 QM67 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)
01:00.0 VGA compatible controller: NVIDIA Corporation GF119 [Quadro NVS 4200M] (rev a1)
01:00.1 Audio device: NVIDIA Corporation HDMI Audio stub (rev a1)
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
0d:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)
lemure@bebop:~$ lspci -nn | grep -i net
00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit Network Connection [8086:1502] (rev 04)
03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter [10ec:8176] (rev 01)

lemure@bebop:~$ lspci -k

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
	Subsystem: Lenovo Device 21d2
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: Lenovo Device 21d2
	Kernel driver in use: mei
	Kernel modules: mei
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
	Subsystem: Lenovo Device 21ce
	Kernel driver in use: e1000e
	Kernel modules: e1000e
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
	Subsystem: Lenovo Device 21d2
	Kernel driver in use: ehci_hcd
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
	Subsystem: Lenovo Device 21d2
	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 b4)
	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 b4)
	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 b4)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4)
	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 04)
	Subsystem: Lenovo Device 21d2
	Kernel driver in use: ehci_hcd
00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04)
	Subsystem: Lenovo Device 21d2
	Kernel modules: iTCO_wdt
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04)
	Subsystem: Lenovo Device 21d2
	Kernel driver in use: ahci
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)
	Subsystem: Lenovo Device 21d2
	Kernel modules: i2c-i801
01:00.0 VGA compatible controller: NVIDIA Corporation GF119 [Quadro NVS 4200M] (rev a1)
	Subsystem: Lenovo Device 21d2
	Kernel driver in use: nvidia
	Kernel modules: nvidia_current, nouveau, nvidiafb
01:00.1 Audio device: NVIDIA Corporation HDMI Audio stub (rev a1)
	Subsystem: Lenovo Device 21d2
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd-hda-intel
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
	Subsystem: Realtek Semiconductor Co., Ltd. Device 8195
	Kernel driver in use: rtl8192ce
	Kernel modules: rtl8192ce
0d:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)
	Subsystem: Lenovo Device 21d2
	Kernel driver in use: xhci_hcd

lemure@bebop:~$ sudo lshw -C network

  *-network               
       description: Ethernet interface
       produit: 82579LM Gigabit Network Connection
       fabriquant: Intel Corporation
       identifiant matériel: 19
       information bus: pci@0000:00:19.0
       nom logique: eth0
       version: 04
       numéro de série: f0:de:f1:d3:8a:d3
       taille: 1Gbit/s
       capacité: 1Gbit/s
       bits: 32 bits
       horloge: 33MHz
       fonctionnalités: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=1.5.1-k duplex=full firmware=0.13-3 ip=192.168.0.117 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
       ressources: irq:47 mémoire:f4300000-f431ffff mémoire:f432b000-f432bfff portE/S:6040(taille=32)
  *-network
       description: Interface réseau sans fil
       produit: RTL8188CE 802.11b/g/n WiFi Adapter
       fabriquant: Realtek Semiconductor Co., Ltd.
       identifiant matériel: 0
       information bus: pci@0000:03:00.0
       nom logique: wlan0
       version: 01
       numéro de série: 9c:b7:0d:52:5f:5c
       bits: 64 bits
       horloge: 33MHz
       fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8192ce driverversion=3.2.0-31-generic firmware=N/A ip=192.168.0.119 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       ressources: irq:17 portE/S:4000(taille=256) mémoire:f4200000-f4203fff
lemure@bebop:~$ lsmod
Module                  Size  Used by
joydev                 17693  0 
vesafb                 13844  1 
rfcomm                 47604  4 
parport_pc             32866  0 
bnep                   18281  2 
ppdev                  17113  0 
snd_hda_codec_hdmi     32474  1 
arc4                   12529  2 
snd_hda_codec_conexant    62358  1 
thinkpad_acpi          81819  1 
snd_hda_intel          33773  8 
snd_hda_codec         127706  3 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel
snd_hwdep              13668  1 snd_hda_codec
snd_pcm                97188  4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
nvidia              12319264  53 
psmouse                97362  0 
snd_seq_midi           13324  0 
snd_rawmidi            30748  1 snd_seq_midi
snd_seq_midi_event     14899  1 snd_seq_midi
snd_seq                61896  2 snd_seq_midi,snd_seq_midi_event
snd_timer              29990  2 snd_pcm,snd_seq
snd_seq_device         14540  3 snd_seq_midi,snd_rawmidi,snd_seq
btusb                  18288  0 
serio_raw              13211  0 
bluetooth             180104  11 rfcomm,bnep,btusb
rtl8192ce              84826  0 
rtl8192c_common        75767  1 rtl8192ce
rtlwifi               111202  1 rtl8192ce
tpm_tis                18804  0 
nvram                  14413  1 thinkpad_acpi
snd                    78855  28 snd_hda_codec_hdmi,snd_hda_codec_conexant,thinkpad_acpi,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
video                  19596  0 
wmi                    19256  0 
mac_hid                13253  0 
mac80211              506816  3 rtl8192ce,rtl8192c_common,rtlwifi
mei                    41616  0 
cfg80211              205544  2 rtlwifi,mac80211
soundcore              15091  1 snd
snd_page_alloc         18529  2 snd_hda_intel,snd_pcm
lp                     17799  0 
parport                46562  3 parport_pc,ppdev,lp
e1000e                156693  0 
lemure@bebop:~$ iwconfig
lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"Daniel LeBlanc"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 00:18:E7:F1:52:9C   
          Bit Rate=1 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:off
          Link Quality=59/70  Signal level=-51 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:6   Missed beacon:0

eth0      no wireless extensions. 

lemure@bebop:~$ ifconfig

eth0      Link encap:Ethernet  HWaddr f0:de:f1:d3:8a:d3  
          inet adr:192.168.0.117  Bcast:192.168.0.255  Masque:255.255.255.0
          adr inet6: fe80::f2de:f1ff:fed3:8ad3/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:73334 erreurs:0 :0 overruns:0 frame:0
          TX packets:48969 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:77228672 (77.2 MB) Octets transmis:6555654 (6.5 MB)
          Interruption:20 Mémoire:f4300000-f4320000 

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:2982 erreurs:0 :0 overruns:0 frame:0
          TX packets:2982 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:327230 (327.2 KB) Octets transmis:327230 (327.2 KB)

wlan0     Link encap:Ethernet  HWaddr 9c:b7:0d:52:5f:5c  
          inet adr:192.168.0.119  Bcast:192.168.0.255  Masque:255.255.255.0
          adr inet6: fe80::9eb7:dff:fe52:5f5c/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:851 erreurs:0 :0 overruns:0 frame:0
          TX packets:182 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:203755 (203.7 KB) Octets transmis:33311 (33.3 KB)

lemure@bebop:~$ sudo iwlist scan

lo        Interface doesn't support scanning.

wlan0     Scan completed :
          Cell 01 - Address: 00:18:E7:F1:52:9C
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=67/70  Signal level=-43 dBm  
                    Encryption key:on
                    ESSID:"Daniel LeBlanc"
                    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=0000002a20b77d80
                    Extra: Last beacon: 628296ms ago
                    IE: Unknown: 000E44616E69656C204C65426C616E63
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 030101
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
                    IE: Unknown: DD180050F2020101830003A4000027A4000042435E0062322F00
                    IE: Unknown: DD1E00904C33CE111BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 2D1ACE111BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: DD1A00904C3401080800000000000000000000000000000000000000
                    IE: Unknown: 3D1601080800000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F0101
                    IE: Unknown: DD0900037F01010000FF7F
                    IE: Unknown: DD0A00037F04010000004000
                    IE: Unknown: DD770050F204104A0001101044000102103B00010310470010000000000000100000000018E7F1529C10210006442D4C696E6B1023000D442D4C696E6B20526F75746572102400074449522D363535104200046E6F6E651054000800060050F2040001101100074449522D363535100800020084103C000103

eth0      Interface doesn't support scanning.

lemure@bebop:~$ uname -r -m
3.2.0-31-generic x86_64
lemure@bebop:~$ cat /etc/network/interfaces
auto lo
iface lo inet loopback

lemure@bebop:~$ nm-tool

NetworkManager Tool

State: connected (global)

- Device: wlan0  [Daniel LeBlanc] ----------------------------------------------
  Type:              802.11 WiFi
  Driver:            rtl8192ce
  State:             connected
  Default:           no
  HW Address:        9C:B7:0D:52:5F:5C

  Capabilities:
    Speed:           1 Mb/s

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

  Wireless Access Points (* = current AP)
    *Daniel LeBlanc: Infra, 00:18:E7:F1:52:9C, Freq 2412 MHz, Rate 54 Mb/s, Strength 69 WPA

  IPv4 Settings:
    Address:         192.168.0.119
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.0.1

    DNS:             192.168.0.1


- Device: eth0  [Connexion filaire 1] ------------------------------------------
  Type:              Wired
  Driver:            e1000e
  State:             connected
  Default:           yes
  HW Address:        F0:DE:F1:D3:8A:D3

  Capabilities:
    Carrier Detect:  yes
    Speed:           1000 Mb/s

  Wired Properties
    Carrier:         on

  IPv4 Settings:
    Address:         192.168.0.117
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.0.1

    DNS:             192.168.0.1

lemure@bebop:~$ sudo rfkill list

1: tpacpi_bluetooth_sw: Bluetooth
	Soft blocked: yes
	Hard blocked: no
2: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no

Dernière modification par Lemure (Le 26/09/2012, à 19:41)

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#2 Le 13/10/2012, à 22:20

freechelmi

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