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#1 Le 26/09/2012, à 20:29
- 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 
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 Hublemure@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_hcdlemure@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 loopbacklemure@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: 192.168.0.1lemure@bebop:~$ sudo rfkill list
1: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: yes
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: noDernière modification par Lemure (Le 26/09/2012, à 20:41)
Hors ligne
#2 Le 13/10/2012, à 23:20
- freechelmi
Re : Probleme Wifi Lenovo T420s
Bonjour peux tu tester ma procédure : http://doc.ubuntu-fr.org/wifi_realtek_rtl8192ce
Elle est necessaire pour la Revff , tu as une rev01
Hors ligne
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