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#1 Le 24/05/2010, à 20:29

desdor

Connexion wifi défaillante pc neuf.

Bonjour,

Mon pc, Packard Bell Ipower GX-DM 195 FR, est en dual boot avec  windaube 7 et Lucid.  Ma connexion wifi sous Lucid est très lente par moment et finit par ne plus fonctionner du tout. Parfois même après un reboot c'est pareil.
Sous windaube, elle fonctionne normalement, ça fait une semaine que je tourne avec (quelle galère wink ) et je n'ai jamais eu de soucis.

Je poste çi dessous les commandes demandées en espérant avoir une aide. Pour ne pas polluer, je n'ai pas mis le résultat du scan, il est très important.

Merci.

 cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=10.04
DISTRIB_CODENAME=lucid
DISTRIB_DESCRIPTION="Ubuntu 10.04 LTS"

lsusb
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 002: ID 05fe:0011 Chic Technology Corp. Browser Mouse
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 147e:1000 Upek 
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 04f2:b027 Chicony Electronics Co., Ltd Gateway USB 2.0 Webcam
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub



lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express Graphics Port (rev 07)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03)
00:1d.3 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M-E LPC Interface Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
01:00.0 VGA compatible controller: nVidia Corporation GT200 [GeForce GTX 260M] (rev a2)
02:00.0 Ethernet controller: Marvell Technology Group Ltd. Device 4380 (rev 10)
04:00.0 Network controller: Intel Corporation Wireless WiFi Link 5100
0d:06.0 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02)
0d:06.2 SD Host controller: O2 Micro, Inc. Integrated MMC/SD Controller (rev 02)
0d:06.3 Mass storage controller: O2 Micro, Inc. Integrated MS/xD Controller (rev 01)

lspci -nn | grep -i net
02:00.0 Ethernet controller [0200]: Marvell Technology Group Ltd. Device [11ab:4380] (rev 10)
04:00.0 Network controller [0280]: Intel Corporation Wireless WiFi Link 5100 [8086:4232]

 sudo lshw -C network
[sudo] password for xxxxx: 
  *-network               
       description: Ethernet interface
       product: Marvell Technology Group Ltd.
       vendor: Marvell Technology Group Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 10
       serial: 00:1f:16:c2:69:81
       capacity: 1GB/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm vpd msi pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.25 firmware=N/A latency=0 link=no multicast=yes port=twisted pair
       resources: irq:30 memory:f3000000-f3003fff ioport:3000(size=256) memory:c0000000-c001ffff(prefetchable)
  *-network
       description: Wireless interface
       product: Wireless WiFi Link 5100
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: wlan0
       version: 00
       serial: 00:1e:65:8f:95:04
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlagn ip=192.168.0.11 latency=0 multicast=yes wireless=IEEE 802.11abgn
       resources: irq:31 memory:f3100000-f3101fff


lsmod
Module                  Size  Used by
aes_i586                7268  1 
aes_generic            26863  1 aes_i586
binfmt_misc             6587  1 
ppdev                   5259  0 
dm_crypt               11331  0 
joydev                  8708  0 
snd_hda_codec_realtek   203168  1 
uvcvideo               56990  0 
arc4                    1153  2 
videodev               34361  1 uvcvideo
v4l1_compat            13251  2 uvcvideo,videodev
snd_hda_intel          21877  4 
snd_hda_codec          74201  2 snd_hda_codec_realtek,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  4 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
snd                    54148  19 snd_hda_codec_realtek,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
iwlagn                105566  0 
iwlcore               105922  1 iwlagn
mac80211              204922  2 iwlagn,iwlcore
psmouse                63245  0 
serio_raw               3978  0 
sdhci_pci               5470  0 
sdhci                  15462  1 sdhci_pci
led_class               2864  2 iwlcore,sdhci
cfg80211              126485  3 iwlagn,iwlcore,mac80211
nvidia               7087672  37 
soundcore               6620  1 snd
snd_page_alloc          7076  2 snd_hda_intel,snd_pcm
lp                      7028  0 
parport                32635  2 ppdev,lp
dm_raid45              81647  0 
xor                    15028  1 dm_raid45
usbhid                 36110  0 
hid                    67032  1 usbhid
fbcon                  35102  71 
tileblit                2031  1 fbcon
font                    7557  1 fbcon
bitblit                 4707  1 fbcon
softcursor              1189  1 bitblit
ohci1394               26950  0 
vga16fb                11385  1 
intel_agp              24177  0 
video                  17375  0 
output                  1871  1 video
ieee1394               81181  1 ohci1394
vgastate                8961  1 vga16fb
sky2                   40775  0 
agpgart                31724  2 nvidia,intel_agp
ahci                   32008  3 
ramzswap                6362  1 
xvmalloc                4074  1 ramzswap
lzo_decompress          2189  1 ramzswap
lzo_compress            1853  1 ramzswap

iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

wlan0     IEEE 802.11abgn  ESSID:"xxxxxx"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 6A:D2:99:26:94:9C   
          Bit Rate=1 Mb/s   Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=64/70  Signal level=-46 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 00:1f:16:c2:69:81  
          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:16 

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:8 erreurs:0 :0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:480 (480.0 B) Octets transmis:480 (480.0 B)

wlan0     Link encap:Ethernet  HWaddr 00:1e:65:8f:95:04  
          inet adr:192.168.0.11  Bcast:192.168.0.255  Masque:255.255.255.0
          adr inet6: fe80::21e:65ff:fe8f:9504/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:13024 erreurs:0 :0 overruns:0 frame:0
          TX packets:8653 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:18111459 (18.1 MB) Octets transmis:941517 (941.5 KB)

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

nm-tool

NetworkManager Tool

State: connected

- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            sky2
  State:             unavailable
  Default:           no
  HW Address:        00:1F:16:C2:69:81

  Capabilities:
    Carrier Detect:  yes

  Wired Properties
    Carrier:         off


- Device: wlan0  [Auto xxxxxx] ---------------------------------------------
  Type:              802.11 WiFi
  Driver:            iwlagn
  State:             connected
  Default:           yes
  HW Address:        00:1E:65:8F:xx:xx

  Capabilities:

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

  Wireless Access Points (* = current AP)
    Neuf WiFi:       Infra, 00:17:33:CA:6B:9C, Freq 2462 MHz, Rate 54 Mb/s, Strength 44
    Wanadoo_032d:    Infra, 00:03:C9:71:EC:C3, Freq 2457 MHz, Rate 54 Mb/s, Strength 48 WEP
    Livebox-f3fe:    Infra, 00:1A:6B:C2:07:87, Freq 2457 MHz, Rate 54 Mb/s, Strength 51 WEP
    NEUF_HUGO:       Infra, 00:17:33:94:84:A0, Freq 2447 MHz, Rate 54 Mb/s, Strength 35 WPA
    freephonie:      Infra, D6:D4:F5:76:A2:93, Freq 2412 MHz, Rate 54 Mb/s, Strength 38 WPA Enterprise
    WANADOO-4C8D:    Infra, 00:14:A4:59:78:47, Freq 2412 MHz, Rate 54 Mb/s, Strength 45 WPA
    NEUF_6B94:       Infra, 00:17:33:CA:6B:95, Freq 2462 MHz, Rate 54 Mb/s, Strength 47 WPA
    EH94:            Infra, 86:1C:EE:46:D1:00, Freq 2412 MHz, Rate 54 Mb/s, Strength 50 WPA
    FreeWifi:        Infra, 3E:2C:B9:13:78:6E, Freq 2412 MHz, Rate 54 Mb/s, Strength 48
    TELE2BOX_342B:   Infra, 00:1D:19:14:4F:7E, Freq 2447 MHz, Rate 54 Mb/s, Strength 48 WEP
    freephonie:      Infra, 46:AB:BF:42:FF:AF, Freq 2437 MHz, Rate 54 Mb/s, Strength 50 WPA Enterprise
    NUMERICABLE-1477:Infra, 00:1A:2B:57:4A:91, Freq 2437 MHz, Rate 54 Mb/s, Strength 37 WEP
    seiffreewifi56:  Infra, 00:07:CB:52:EA:ED, Freq 2422 MHz, Rate 54 Mb/s, Strength 44 WEP
    DartyBox_B534_WEP: Infra, 02:22:3F:69:3E:D9, Freq 2437 MHz, Rate 54 Mb/s, Strength 44 WEP
    SpeedTouch35E5B6:Infra, 00:14:7F:B3:68:FD, Freq 2437 MHz, Rate 54 Mb/s, Strength 45 WEP
    Livebox-0de5:    Infra, 00:16:41:47:EE:E9, Freq 2457 MHz, Rate 54 Mb/s, Strength 50 WEP
    Wanadoo_da19:    Infra, 00:10:C6:F3:0F:9E, Freq 2457 MHz, Rate 54 Mb/s, Strength 47 WEP
    Livebox-e89e:    Infra, 00:03:C9:71:26:BD, Freq 2457 MHz, Rate 54 Mb/s, Strength 41 WEP
    Livebox-5B58:    Infra, 00:19:7E:B6:65:27, Freq 2412 MHz, Rate 54 Mb/s, Strength 40 WPA
    Goeland:         Infra, D6:9F:AD:31:B7:84, Freq 2462 MHz, Rate 54 Mb/s, Strength 44 WPA
    WANADOO-0B19:    Infra, 00:14:A4:26:3F:21, Freq 2412 MHz, Rate 54 Mb/s, Strength 42 WPA
    SFR WiFi Public: Infra, 00:17:33:16:E2:DA, Freq 2462 MHz, Rate 54 Mb/s, Strength 44
    DartyBox_B534:   Infra, 00:22:3F:69:3E:D8, Freq 2437 MHz, Rate 54 Mb/s, Strength 40 WEP
    Fast3302_b840:   Infra, 00:14:A5:9C:E1:1E, Freq 2462 MHz, Rate 54 Mb/s, Strength 42 WEP
    violator:        Infra, 46:80:B2:E3:22:70, Freq 2412 MHz, Rate 54 Mb/s, Strength 55 WEP
    Livebox-7CA8:    Infra, 00:16:CF:5C:EE:A3, Freq 2412 MHz, Rate 54 Mb/s, Strength 41 WPA
    Livebox-7B88:    Infra, 00:14:A4:5C:1B:30, Freq 2412 MHz, Rate 54 Mb/s, Strength 42 WPA
    NEUF_E2D4:       Infra, 00:17:33:16:E2:D8, Freq 2462 MHz, Rate 54 Mb/s, Strength 47 WPA
    NEUF_6A10:       Infra, 00:17:33:A7:6A:14, Freq 2462 MHz, Rate 54 Mb/s, Strength 48 WPA
    NEUF_9C7C:       Infra, 00:17:33:94:9C:80, Freq 2462 MHz, Rate 54 Mb/s, Strength 50 WPA
    NUMERICABLE-8834:Infra, 00:1D:60:33:92:BC, Freq 2437 MHz, Rate 54 Mb/s, Strength 37 WEP
    NUMERICABLE-ECF8:Infra, 00:1F:33:CB:C8:55, Freq 2437 MHz, Rate 54 Mb/s, Strength 42 WEP
    freebox77:       Infra, 3E:2C:B9:13:78:6C, Freq 2412 MHz, Rate 54 Mb/s, Strength 51 WPA
    FreeWifi:        Infra, D6:9F:AD:31:B7:86, Freq 2462 MHz, Rate 54 Mb/s, Strength 44
    Neuf WiFi:       Infra, 00:17:33:A7:6A:15, Freq 2462 MHz, Rate 54 Mb/s, Strength 47
    Annafreebox:     Infra, 00:07:CB:53:2B:42, Freq 2437 MHz, Rate 54 Mb/s, Strength 42 WEP
    Livebox-BB10:    Infra, 00:16:CF:BA:6A:88, Freq 2412 MHz, Rate 54 Mb/s, Strength 45 WPA
    freephonie:      Infra, 3E:2C:B9:13:78:6F, Freq 2412 MHz, Rate 54 Mb/s, Strength 52 WPA Enterprise
    FreeWifi:        Infra, C2:81:92:C1:E0:7A, Freq 2412 MHz, Rate 54 Mb/s, Strength 47
    freephonie:      Infra, AA:DA:62:26:AE:43, Freq 2412 MHz, Rate 54 Mb/s, Strength 42 WPA Enterprise
    StellieNet:      Infra, C2:81:92:C1:E0:78, Freq 2412 MHz, Rate 54 Mb/s, Strength 47 WPA
    FreeWifi:        Infra, 86:1C:EE:46:D1:02, Freq 2412 MHz, Rate 54 Mb/s, Strength 51
    freephonie:      Infra, 86:1C:EE:46:D1:03, Freq 2412 MHz, Rate 54 Mb/s, Strength 45 WPA Enterprise
    free34:          Infra, 4E:1E:31:41:7C:C8, Freq 2412 MHz, Rate 54 Mb/s, Strength 41 WPA
    NUMERICABLE-D814:Infra, 00:1E:8C:BB:17:25, Freq 2437 MHz, Rate 54 Mb/s, Strength 42 WEP
    freephonie:      Infra, C2:A3:91:10:42:F7, Freq 2462 MHz, Rate 54 Mb/s, Strength 55 WPA Enterprise
    TELE2BOX_4FD3:   Infra, 00:1D:19:14:82:5B, Freq 2447 MHz, Rate 54 Mb/s, Strength 55 WEP
    FreeWifi:        Infra, 46:80:B2:E3:22:72, Freq 2412 MHz, Rate 54 Mb/s, Strength 52
    freephonie:      Infra, 46:80:B2:E3:22:73, Freq 2412 MHz, Rate 54 Mb/s, Strength 45 WPA Enterprise
    FreeWifi:        Infra, 4E:1E:31:41:7C:CA, Freq 2412 MHz, Rate 54 Mb/s, Strength 41
    freephonie:      Infra, D6:1D:A1:0A:10:2F, Freq 2412 MHz, Rate 54 Mb/s, Strength 51 WPA Enterprise
    FreeWifi:        Infra, C2:A3:91:10:42:F6, Freq 2462 MHz, Rate 54 Mb/s, Strength 52
    FreeWifi:        Infra, 5A:BC:66:59:37:9A, Freq 2462 MHz, Rate 54 Mb/s, Strength 58
    FreeWifi:        Infra, 6A:D2:99:26:94:9E, Freq 2462 MHz, Rate 54 Mb/s, Strength 94
    NUMERICABLE-7838:Infra, 00:1A:2B:12:8B:CC, Freq 2437 MHz, Rate 54 Mb/s, Strength 50 WEP
    freebox_YHIVJZ:  Infra, C2:A3:91:10:42:F4, Freq 2462 MHz, Rate 54 Mb/s, Strength 52 WEP
    AOLbox-88E7:     Infra, 00:07:3A:67:B5:E9, Freq 2412 MHz, Rate 54 Mb/s, Strength 50 WEP
    Home:            Infra, 5A:BC:66:59:37:98, Freq 2462 MHz, Rate 54 Mb/s, Strength 60 WPA
    *thierrynux:     Infra, 6A:D2:99:26:94:9C, Freq 2462 MHz, Rate 54 Mb/s, Strength 92 WPA
    freephonie:      Infra, 5A:BC:66:59:37:9B, Freq 2462 MHz, Rate 54 Mb/s, Strength 58 WPA Enterprise
    WANADOO-AF30:    Infra, 00:14:A4:82:E2:86, Freq 2412 MHz, Rate 54 Mb/s, Strength 55 WPA
    Bbox-55D705:     Infra, 00:1F:9F:E3:CA:5F, Freq 2437 MHz, Rate 54 Mb/s, Strength 92 WPA
    freephonie:      Infra, 6A:D2:99:26:94:9F, Freq 2462 MHz, Rate 54 Mb/s, Strength 60 WPA Enterprise

  IPv4 Settings:
    Address:         192.168.x.xx
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.0.xxx

    DNS:             212.27.xx.xxx
    DNS:             212.27.xx.xxx

~$ uname -r -m
2.6.32-22-generic i686

Hors ligne

#2 Le 24/05/2010, à 22:17

toutafai

Re : Connexion wifi défaillante pc neuf.

wahoo....que de borne autour de toi...dont quelques une sur le même canal que toi, ce qui a mon avis doit polluer ton wifi...

Commence donc par changer de canal pour un canal ou il y a personne et si possible personne non plus sur les canaux adjacents (x+1 et x-1).... oui je sais cela va pas être évident pour la 2 em condition.

PS : la gestion du wifi sous Ms et sous ubuntu est complètement différente et donc incomparable.

Dernière modification par toutafai (Le 24/05/2010, à 22:18)


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

#3 Le 24/05/2010, à 22:29

desdor

Re : Connexion wifi défaillante pc neuf.

Oui je suis en région parisienne en immeuble, c'est fourni.....
Je m'y prends comment pour changer de canal ?

Hors ligne

#4 Le 25/05/2010, à 12:32

toutafai

Re : Connexion wifi défaillante pc neuf.

via l'interface d'administration de ta freebox...il me semble avoir vu personne sur le 2422 (canal 3), ou  2442 Mhz (canal 7) ou 2452 Mhz (canal 9) par exemple... pour voir correspondance entre Mhz et n° de canal voit le retour d'un

iwlist wlan0 scanning

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