Bonjour,
Il y a quelques mois, j'ai installé Ubuntu 9.10 Karmic Koala et j'ai été comblé ; ma connexion wifi a fonctionné parfaitement (carte wifi reconnue automatiquement). Récemment j'ai fait une mise à niveau vers ubuntu 10.04 - Lucid Lynx à partir de Karmic. (un vrai désastre !)
Je suis reparti de zéro , en supprimant la partition Lucid Lynx et une réinstallation à partir de son Live-CD.
Utilisateur "confirmé" sous Windows (je ne sais pas programmé) , débutant sous Linux.
Après avoir terminé l'installation d'ubuntu Lucid Lynx , ma carte wifi était reconnue , je pouvais me connecter au réseau mais quand je voulais accéder à un site internet ou un autre, plusieurs, ... rien ! impossible d'afficher sauf en insistant pour aller sur www.google.fr et c'est tout !
J'ai cherché à résoudre mon problème par internet et aujourd'hui je l'ai résolu en parti , j'ai installé Ndiswrapper et son interface graphique, repris le pilote XP de ma carte wifi livré avec mon PC portable mais voilà après un certain temps (durée aléatoire) ma connexion internet ne reste pas et pourtant l'icone wifi est toujours actif indiquant que la connexion est toujours présente; pour retrouver ma connexion internet je suis obligé de me déconnecter et me connecter à nouveau et ceci en boucle ...
Je n'avais pas ce problème sous Karmic et je n'ai pas installé Ndiswrapper. Peut-on récupérer ce pilote dans Karmic et l'installer dans Lucid ? D'autre part, après installation et en utilisant Ndiswrapper j'ai constaté une baisse du signal wifi alors qu'avant pour cette même carte et ordi placé au même endroit le signal était proche de 50% actuellement ce signal est de 30-35%.
Aujourd'hui j'appel à l'aide les linuxiens ,
les commandes :
- cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=10.04
DISTRIB_CODENAME=lucid
DISTRIB_DESCRIPTION="Ubuntu 10.04 LTS"
lsusb
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 046d:c03d Logitech, Inc. M-BT96a Pilot Optical Mouse
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
lspci
00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge (rev 10)
00:01.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge
00:04.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge
00:12.0 IDE interface: ATI Technologies Inc IXP SB400 Serial ATA Controller (rev 80)
00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller (rev 80)
00:13.1 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller (rev 80)
00:13.2 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host Controller (rev 80)
00:14.0 SMBus: ATI Technologies Inc IXP SB400 SMBus Controller (rev 83)
00:14.1 IDE interface: ATI Technologies Inc IXP SB400 IDE Controller (rev 80)
00:14.2 Audio device: ATI Technologies Inc IXP SB4x0 High Definition Audio Controller (rev 01)
00:14.3 ISA bridge: ATI Technologies Inc IXP SB400 PCI-ISA Bridge (rev 80)
00:14.4 PCI bridge: ATI Technologies Inc IXP SB400 PCI-PCI Bridge (rev 80)
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
01:05.0 VGA compatible controller: ATI Technologies Inc RS482 [Radeon Xpress 200M]
05:03.0 Ethernet controller: Atheros Communications Inc. AR2413 802.11bg NIC (rev 01)
05:04.0 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02)
05:04.2 SD Host controller: O2 Micro, Inc. Integrated MMC/SD Controller (rev 01)
05:04.3 Mass storage controller: O2 Micro, Inc. Integrated MS/xD Controller (rev 01)
05:05.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
lspci -nn | grep -i net
05:03.0 Ethernet controller [0200]: Atheros Communications Inc. AR2413 802.11bg NIC [168c:001a] (rev 01)
05:05.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ [10ec:8139] (rev 10)
sudo lshw -C network
[sudo] password for francois:
*-network:0
description: Wireless interface
product: AR2413 802.11bg NIC
vendor: Atheros Communications Inc.
physical id: 3
bus info: pci@0000:05:03.0
logical name: wlan0
version: 01
serial: 00:c0:a8:d5:fa:c8
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ndiswrapper+net5211 driverversion=1.55+,06/29/2006,5.0.0.107 ip=10.0.1.7 latency=128 link=yes maxlatency=28 mingnt=10 multicast=yes wireless=IEEE 802.11g
resources: irq:23 memory:c0200000-c020ffff
*-network:1
description: Ethernet interface
product: RTL-8139/8139C/8139C+
vendor: Realtek Semiconductor Co., Ltd.
physical id: 5
bus info: pci@0000:05:05.0
logical name: eth0
version: 10
serial: 00:03:0d:56:53:79
size: 10MB/s
capacity: 100MB/s
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=8139too driverversion=0.9.28 duplex=half latency=64 link=no maxlatency=64 mingnt=32 multicast=yes port=MII speed=10MB/s
resources: irq:21 ioport:a000(size=256) memory:c0210c00-c0210cff
*-network DISABLED
description: Ethernet interface
physical id: 2
logical name: vboxnet0
serial: 0a:00:27:00:00:00
capabilities: ethernet physical
configuration: broadcast=yes multicast=yes
lsmod
Module Size Used by
binfmt_misc 6587 1
ppdev 5259 0
vboxnetadp 6326 0
vboxnetflt 15162 0
vboxdrv 190377 2 vboxnetadp,vboxnetflt
snd_hda_codec_realtek 203168 1
snd_hda_codec_si3054 3396 1
fbcon 35102 71
tileblit 2031 1 fbcon
font 7557 1 fbcon
bitblit 4707 1 fbcon
softcursor 1189 1 bitblit
vga16fb 11385 0
vgastate 8961 1 vga16fb
snd_hda_intel 21877 5
snd_hda_codec 74201 3 snd_hda_codec_realtek,snd_hda_codec_si3054,snd_hda_intel
snd_hwdep 5412 1 snd_hda_codec
snd_pcm_oss 35308 0
snd_mixer_oss 13746 1 snd_pcm_oss
snd_pcm 70662 6 snd_hda_codec_si3054,snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_seq_dummy 1338 0
snd_seq_oss 26726 0
snd_seq_midi 4557 0
snd_rawmidi 19056 1 snd_seq_midi
snd_seq_midi_event 6003 2 snd_seq_oss,snd_seq_midi
snd_seq 47263 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 19098 2 snd_pcm,snd_seq
snd_seq_device 5700 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
radeon 674135 3
snd 54148 21 snd_hda_codec_realtek,snd_hda_codec_si3054,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
ttm 49943 1 radeon
drm_kms_helper 29297 1 radeon
ati_agp 5094 0
drm 162471 5 radeon,ttm,drm_kms_helper
i2c_algo_bit 5028 1 radeon
sdhci_pci 5470 0
sdhci 15462 1 sdhci_pci
led_class 2864 1 sdhci
ndiswrapper 184677 0
psmouse 63245 0
serio_raw 3978 0
video 17375 0
output 1871 1 video
k8temp 3024 0
i2c_piix4 8335 0
soundcore 6620 1 snd
snd_page_alloc 7076 2 snd_hda_intel,snd_pcm
agpgart 31724 3 ttm,ati_agp,drm
shpchp 28820 0
lp 7028 0
parport 32635 2 ppdev,lp
8139too 18545 0
usbhid 36110 0
ohci1394 26950 0
8139cp 16186 0
hid 67032 1 usbhid
mii 4381 2 8139too,8139cp
ieee1394 81181 1 ohci1394
pata_atiixp 3148 0
sata_sil 6959 3
iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11g ESSID:"homenet"
Mode:Managed Frequency:2.467 GHz Access Point: 00:11:24:25:7C:F4
Bit Rate=54 Mb/s
Power Managementff
Link Quality:26/100 Signal level:-79 dBm Noise level:-96 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
vboxnet0 no wireless extensions.
ifconfig
eth0 Link encap:Ethernet HWaddr 00:03:0d:56:53:79
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 Octets transmis:0 (0.0
Interruption:21 Adresse de base:0xa000
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:28 erreurs:0 :0 overruns:0 frame:0
TX packets:28 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:0
Octets reçus:1680 (1.6 K Octets transmis:1680 (1.6 K
wlan0 Link encap:Ethernet HWaddr 00:c0:a8:d5:fa:c8
inet adr:10.0.1.7 Bcast:10.0.1.255 Masque:255.255.255.0
adr inet6: fe80::2c0:a8ff:fed5:fac8/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:19596 erreurs:0 :0 overruns:0 frame:0
TX packets:10560 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:28707093 (28.7 M Octets transmis:748185 (748.1 K
Interruption:23 Mémoire:c0200000-c0210000
sudo iwlist scan
lo Interface doesn't support scanning.
eth0 Interface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: 00:11:24:25:7C:F4
ESSID:"homenet"
Protocol:IEEE 802.11g
Mode:Managed
Frequency:2.467 GHz (Channel 12)
Quality:29/100 Signal level:-77 dBm Noise level:-96 dBm
Encryption keyn
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
Extra:bcn_int=100
Extra:atim=0
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 (1) : TKIP
Authentication Suites (1) : PSK
Cell 02 - Address: 00:11:24:A75:85
ESSID:"homenet"
Protocol:IEEE 802.11g
Mode:Managed
Frequency:2.467 GHz (Channel 12)
Quality:6/100 Signal level:-92 dBm Noise level:-96 dBm
Encryption keyn
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
Extra:bcn_int=100
Extra:atim=0
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 (1) : TKIP
Authentication Suites (1) : PSK
Cell 03 - Address: 00:25:4B:03:FA:7B
ESSID:"homenet"
Protocol:IEEE 802.11g
Mode:Managed
Frequency:2.467 GHz (Channel 12)
Quality:6/100 Signal level:-92 dBm Noise level:-96 dBm
Encryption keyn
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:bcn_int=100
Extra:atim=0
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 (1) : TKIP
Authentication Suites (1) : PSK
Cell 04 - Address: 92:6B:E3:66:50:89
ESSID:"WASC-001641c11dc0-PHILIPS"
Protocol:IEEE 802.11g
Mode:Ad-Hoc
Frequency:2.462 GHz (Channel 11)
Quality:62/100 Signal level:-56 dBm Noise level:-96 dBm
Encryption keyn
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:bcn_int=100
Extra:atim=0
Cell 05 - Address: 00:17:33A5:F9
ESSID:"Neuf WiFi"
Protocol:IEEE 802.11g
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality:15/100 Signal level:-86 dBm Noise level:-96 dBm
Encryption keyff
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:bcn_int=100
Extra:atim=0
Cell 06 - Address: 00:1D:6A:C2:C9:1E
ESSID:"Livebox-76A6"
Protocol:IEEE 802.11g
Mode:Managed
Frequency:2.412 GHz (Channel 1)
Quality:12/100 Signal level:-88 dBm Noise level:-96 dBm
Encryption keyn
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:bcn_int=100
Extra:atim=0
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
Cell 07 - Address: 00:17:33A5:F8
ESSID:"NEUF_D5F4"
Protocol:IEEE 802.11g
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality:14/100 Signal level:-87 dBm Noise level:-96 dBm
Encryption keyn
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:bcn_int=100
Extra:atim=0
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Cell 08 - Address: 00:17:33A5:FA
ESSID:"SFR WiFi Public"
Protocol:IEEE 802.11g
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality:14/100 Signal level:-87 dBm Noise level:-96 dBm
Encryption keyff
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:bcn_int=100
Extra:atim=0
vboxnet0 Interface doesn't support scanning.
uname -r -m
2.6.32-22-generic i686
cat /etc/network/interfaces
auto lo
iface lo inet loopback
nm-tool
NetworkManager Tool
State: connected
- Device: wlan0 [Auto homenet] ------------------------------------------------
Type: 802.11 WiFi
Driver: ndiswrapper
State: connected
Default: yes
HW Address: 00:C0:A85:FA:C8
Capabilities:
Speed: 54 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
*homenet: Infra, 00:11:24:25:7C:F4, Freq 2467 MHz, Rate 54 Mb/s, Strength 25 WPA WPA2
homenet: Infra, 00:11:24:A75:85, Freq 2467 MHz, Rate 54 Mb/s, Strength 34 WPA WPA2
homenet: Infra, 00:25:4B:03:FA:7B, Freq 2467 MHz, Rate 54 Mb/s, Strength 20 WPA WPA2
SFR WiFi Public: Infra, 00:17:33A5:FA, Freq 2462 MHz, Rate 54 Mb/s, Strength 15
NEUF_D5F4: Infra, 00:17:33A5:F8, Freq 2462 MHz, Rate 54 Mb/s, Strength 15 WPA
Neuf WiFi: Infra, 00:17:33A5:F9, Freq 2462 MHz, Rate 54 Mb/s, Strength 15
WASC-001641c11dc0-PHILIPS: Ad-Hoc, 92:6B:E3:66:50:89, Freq 2462 MHz, Rate 54 Mb/s, Strength 15 WEP
Livebox-76A6: Infra, 00:1D:6A:C2:C9:1E, Freq 2412 MHz, Rate 54 Mb/s, Strength 7 WPA
IPv4 Settings:
Address: 10.0.1.7
Prefix: 24 (255.255.255.0)
Gateway: 10.0.1.1
DNS: 10.0.1.1
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: 8139too
State: unavailable
Default: no
HW Address: 00:03:0D:56:53:79
Capabilities:
Carrier Detect: yes
Speed: 10 Mb/s
Wired Properties
Carrier: off
voila pour les résultats des commandes, merci d'avance pour votre aide,