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#1 Le 25/11/2008, à 18:57
- exe01
Problème Wifi, appel à l'aide !
Bonjour à tous, je viens demander de l'aide pour mon wifi sous Ubuntu. J'ai cherché sur le forum, sans résultats.
Je vous explique la situation en quelques mots avant l'avalanche des résultats de quelques commandes.
J'ai installé Ubuntu 8.04.1 et mon wifi a quelques problèmes. En effet, ma clé wifi Linksys WUSB54GP v4.0 (rt2x00 il me semble) ne fonctionne pas bien, ou alors je l'ai mal configurée. Je n'ai pas de connexion internet.
Ce qui est étrange, c'est que de temps en temps, j'arrive à afficher la page de Google, mais je ne peux aller plus loin, la connexion n'est plus.
Donc voici ma config :
cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=8.04
DISTRIB_CODENAME=hardy
DISTRIB_DESCRIPTION="Ubuntu 8.04.1"
lsusb
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 002: ID 13b1:0011 Linksys WUSB54GP v4.0 802.11g Adapter
Bus 001 Device 001: ID 0000:0000
lspci
00:00.0 RAM memory: nVidia Corporation MCP55 Memory Controller (rev a1)
00:01.0 ISA bridge: nVidia Corporation MCP55 LPC Bridge (rev a2)
00:01.1 SMBus: nVidia Corporation MCP55 SMBus (rev a2)
00:02.0 USB Controller: nVidia Corporation MCP55 USB Controller (rev a1)
00:02.1 USB Controller: nVidia Corporation MCP55 USB Controller (rev a2)
00:04.0 IDE interface: nVidia Corporation MCP55 IDE (rev a1)
00:05.0 IDE interface: nVidia Corporation MCP55 SATA Controller (rev a2)
00:05.1 IDE interface: nVidia Corporation MCP55 SATA Controller (rev a2)
00:05.2 IDE interface: nVidia Corporation MCP55 SATA Controller (rev a2)
00:06.0 PCI bridge: nVidia Corporation MCP55 PCI bridge (rev a2)
00:08.0 Bridge: nVidia Corporation MCP55 Ethernet (rev a2)
00:09.0 Bridge: nVidia Corporation MCP55 Ethernet (rev a2)
00:0e.0 PCI bridge: nVidia Corporation MCP55 PCI Express bridge (rev a2)
00:0f.0 PCI bridge: nVidia Corporation MCP55 PCI Express bridge (rev a2)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:07.0 Multimedia audio controller: Creative Labs SB Audigy LS
01:0b.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link)
02:00.0 SATA controller: JMicron Technologies, Inc. JMicron 20360/20363 AHCI Controller (rev 03)
02:00.1 IDE interface: JMicron Technologies, Inc. JMicron 20360/20363 AHCI Controller (rev 03)
03:00.0 VGA compatible controller: ATI Technologies Inc Radeon HD 3870
03:00.1 Audio device: ATI Technologies Inc Radeon HD 3870 Audio device
sudo lshw -C network
*-network
description: Wireless interface
physical id: 1
logical name: wlan0
serial: 00:12:17:62:1c:d2
capabilities: ethernet physical wireless
configuration: broadcast=yes ip=192.168.1.4 multicast=yes wireless=IEEE 802.11g
lsmod
Module Size Used by
af_packet 23812 1
rfcomm 41744 2
l2cap 25728 13 rfcomm
bluetooth 61156 4 rfcomm,l2cap
ppdev 10372 0
powernow_k8 16704 1
cpufreq_conservative 8712 0
cpufreq_powersave 2688 0
cpufreq_ondemand 9740 1
cpufreq_stats 7104 0
freq_table 5536 3 powernow_k8,cpufreq_ondemand,cpufreq_stats
cpufreq_userspace 5284 0
sbs 15112 0
sbshc 7680 1 sbs
video 19856 0
output 4736 1 video
dock 11280 0
container 5632 0
battery 14212 0
iptable_filter 3840 0
ip_tables 14820 1 iptable_filter
x_tables 16132 1 ip_tables
ipv6 267780 10
ac 6916 0
sbp2 24072 0
lp 12324 0
arc4 2944 2
ecb 4480 2
blkcipher 8324 1 ecb
rt2500usb 24320 0
rt2x00usb 12800 1 rt2500usb
rt2x00lib 22528 2 rt2500usb,rt2x00usb
rfkill 8592 1 rt2x00lib
input_polldev 5896 1 rt2x00lib
crc_itu_t 3072 1 rt2x00lib
fglrx 1862476 32
mac80211 165652 2 rt2x00usb,rt2x00lib
cfg80211 15112 1 mac80211
snd_hda_intel 344728 0
snd_hwdep 10500 1 snd_hda_intel
snd_ca0106 36192 2
agpgart 34760 1 fglrx
snd_ac97_codec 101028 1 snd_ca0106
snd_pcm_oss 42144 0
snd_mixer_oss 17920 1 snd_pcm_oss
snd_pcm 78596 4 snd_hda_intel,snd_ca0106,snd_ac97_codec,snd_pcm_oss
snd_seq_dummy 4868 0
snd_seq_oss 35584 0
snd_seq_midi 9376 0
snd_rawmidi 25760 2 snd_ca0106,snd_seq_midi
snd_seq_midi_event 8320 2 snd_seq_oss,snd_seq_midi
snd_seq 54224 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 24836 2 snd_pcm,snd_seq
snd_seq_device 9612 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 56996 17 snd_hda_intel,snd_hwdep,snd_ca0106,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_dummy,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 8800 1 snd
ac97_bus 3072 1 snd_ac97_codec
snd_page_alloc 11400 3 snd_hda_intel,snd_ca0106,snd_pcm
serio_raw 7940 0
parport_pc 36260 1
button 9232 0
i2c_nforce2 7680 0
parport 37832 3 ppdev,lp,parport_pc
shpchp 34452 0
pci_hotplug 30880 1 shpchp
i2c_core 24832 1 i2c_nforce2
k8temp 6656 0
evdev 13056 3
pcspkr 4224 0
psmouse 40336 0
ext3 136712 2
jbd 48404 1 ext3
mbcache 9600 1 ext3
sd_mod 30720 4
sg 36880 0
sr_mod 17956 0
cdrom 37408 1 sr_mod
sata_nv 27528 3
pata_jmicron 7040 0
ata_generic 8324 0
ahci 28420 0
pata_acpi 8320 0
pata_amd 14212 0
ohci1394 33584 0
forcedeth 51980 0
ieee1394 93752 2 sbp2,ohci1394
libata 159344 6 sata_nv,pata_jmicron,ata_generic,ahci,pata_acpi,pata_amd
scsi_mod 151436 5 sbp2,sd_mod,sg,sr_mod,libata
ohci_hcd 25348 0
ehci_hcd 37900 0
usbcore 146028 5 rt2500usb,rt2x00usb,ohci_hcd,ehci_hcd
thermal 16796 0
processor 36872 2 powernow_k8,thermal
fan 5636 0
fbcon 42912 0
tileblit 3456 1 fbcon
font 9472 1 fbcon
bitblit 6784 1 fbcon
softcursor 3072 1 bitblit
fuse 50580 3
iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
eth1 no wireless extensions.
wmaster0 no wireless extensions.
wlan0 IEEE 802.11g ESSID:"TECOM-8074ED"
Mode:Managed Frequency:2.412 GHz Access Point: 00:16:38:80:74:F8
Bit Rate=24 Mb/s Tx-Power=27 dBm
Retry min limit:7 RTS thr:off Fragment thr=2346 B
Link Quality=30/100 Signal level=-61 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
ifconfig
eth0 Link encap:Ethernet HWaddr 00:1b:fc:a4:0f:aa
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:220 Adresse de base:0x6000
eth1 Link encap:Ethernet HWaddr 00:1b:fc:a4:1c:95
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:221 Adresse de base:0xe000
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:2044 erreurs:0 :0 overruns:0 frame:0
TX packets:2044 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:0
Octets reçus:106060 (103.5 KB) Octets transmis:106060 (103.5 KB)
wlan0 Link encap:Ethernet HWaddr 00:12:17:62:1c:d2
inet adr:192.168.1.4 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: fe80::212:17ff:fe62:1cd2/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:106 erreurs:0 :0 overruns:0 frame:0
TX packets:477 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:48141 (47.0 KB) Octets transmis:65354 (63.8 KB)
wmaster0 Link encap:UNSPEC HWaddr 00-12-17-62-1C-D2-00-00-00-00-00-00-00-00-00-00
UP BROADCAST RUNNING 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)
sudo iwlist scan
lo Interface doesn't support scanning.
eth0 Interface doesn't support scanning.
eth1 Interface doesn't support scanning.
wmaster0 Interface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: 00:16:38:80:74:F8
ESSID:"TECOM-8074ED"
Mode:Master
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=49/100 Signal level=-61 dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
12 Mb/s; 48 Mb/s
Extra:tsf=000000254f411675
uname -r -m
2.6.24-19-generic i686
cat /etc/network/interfaces
auto lo
iface lo inet loopback
iface wlan0 inet static
address 192.168.1.4
netmask 255.255.255.0
gateway 192.168.1.1
wireless-key 0011223344
wireless-essid TECOM-8074ED
auto wlan0
nm-tool
NetworkManager Tool
State: connected
- Device: eth1 ----------------------------------------------------------------
NM Path: /org/freedesktop/NetworkManager/Devices/eth1
Type: Wired
Driver: forcedeth
Active: no
HW Address: 00:1B:FC:A4:1C:95
Capabilities:
Supported: yes
Carrier Detect: yes
Wired Settings
Hardware Link: no
- Device: eth0 ----------------------------------------------------------------
NM Path: /org/freedesktop/NetworkManager/Devices/eth0
Type: Wired
Driver: forcedeth
Active: no
HW Address: 00:1B:FC:A4:0F:AA
Capabilities:
Supported: yes
Carrier Detect: yes
Wired Settings
Hardware Link: noSi quelqu'un peut m'aider, ça serait très sympa !
Merci d'avance.
Dernière modification par exe01 (Le 25/11/2008, à 18:58)
Hors ligne
#2 Le 25/11/2008, à 21:11
- toutafai
Re : Problème Wifi, appel à l'aide !
Bonsoir,
Essaye en purgeant le fichier interfaces avec cette commande :
echo -e 'auto lo\niface lo inet loopback\n' | sudo tee /etc/network/interfacesreboot, et passe uniquement par networlk-manager (icone 2 tv en haut a droite, a coté de l'heure) pour parametrer ton wifi et te connecter.
Tombé dans l'informatique étant petit, j'en ai fait mon métier. Utilisateur d'Ubuntu depuis novembre 2006, actuellement sous 20.04 x64 (Que d'évolution
depuis Dapper Drake ! Ça rajeunit pas ^^^).
Hors ligne
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