Ubuntu-fr

Dadouan

Wifi instable.

Tout d'abord, bonjour excusez moi de vous déranger je suis nouveau dans cette communauté et rencontre déjà plusieurs problèmes dont je n'arrive pas à me défaire seul. J'ai installé ubuntu récemment en dual boot avec windows 7 à ma grande joie ma clé wifi est automatiquement détectée et je peux me connecter au wifi seulement cette connexion est lente,  parfois afficher simplement une recherche google peut prendre plusieurs minute alors que sur cette même connexion sous windows je peux télécharger à 3mo/sec. Voici ma configuration :

cat /etc/lsb-release :

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

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 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 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
Bus 002 Device 003: ID 0cf3:7015 Atheros Communications, Inc. TP-Link TL-WN821N v3 802.11n [Atheros AR7010+AR9287]
Bus 002 Device 004: ID 05e3:0607 Genesys Logic, Inc. Logitech G110 Hub
Bus 002 Device 005: ID 046d:c051 Logitech, Inc. G3 (MX518) Optical Mouse
Bus 002 Device 006: ID 046d:c22b Logitech, Inc. 
Bus 002 Device 007: ID 046d:c22a Logitech, Inc. 

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)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)
00:1c.4 PCI bridge: Intel Corporation 82801 PCI Bridge (rev b5)
00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (rev b5)
00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b5)
00:1c.7 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 8 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation P67 Express Chipset Family LPC Controller (rev 05)
00:1f.2 IDE interface: Intel Corporation 6 Series/C200 Series Chipset Family 4 port SATA IDE Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
00:1f.5 IDE interface: Intel Corporation 6 Series/C200 Series Chipset Family 2 port SATA IDE Controller (rev 05)
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RV770 [Radeon HD 4870]
01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI RV770 HDMI Audio [Radeon HD 4850/4870]
03:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)
04:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 01)
06:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
08:00.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6315 Series Firewire Controller (rev 01)

lspci -nn | grep -i net:

07:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 06)

lspci -k:

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
	Subsystem: Micro-Star International Co., Ltd. Device 7681
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: Micro-Star International Co., Ltd. Device 7673
	Kernel driver in use: mei
	Kernel modules: mei
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
	Subsystem: Micro-Star International Co., Ltd. Device 7673
	Kernel driver in use: ehci_hcd
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
	Subsystem: Micro-Star International Co., Ltd. Device 7673
	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 b5)
	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 b5)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.4 PCI bridge: Intel Corporation 82801 PCI Bridge (rev b5)
00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (rev b5)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b5)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.7 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 8 (rev b5)
	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 05)
	Subsystem: Micro-Star International Co., Ltd. Device 7673
	Kernel driver in use: ehci_hcd
00:1f.0 ISA bridge: Intel Corporation P67 Express Chipset Family LPC Controller (rev 05)
	Subsystem: Micro-Star International Co., Ltd. Device 7673
	Kernel modules: iTCO_wdt
00:1f.2 IDE interface: Intel Corporation 6 Series/C200 Series Chipset Family 4 port SATA IDE Controller (rev 05)
	Subsystem: Micro-Star International Co., Ltd. Device 7673
	Kernel driver in use: ata_piix
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
	Subsystem: Micro-Star International Co., Ltd. Device 7673
	Kernel modules: i2c-i801
00:1f.5 IDE interface: Intel Corporation 6 Series/C200 Series Chipset Family 2 port SATA IDE Controller (rev 05)
	Subsystem: Micro-Star International Co., Ltd. Device 7673
	Kernel driver in use: ata_piix
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RV770 [Radeon HD 4870]
	Subsystem: PC Partner Limited Device 0502
	Kernel driver in use: fglrx_pci
	Kernel modules: fglrx, radeon
01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI RV770 HDMI Audio [Radeon HD 4850/4870]
	Subsystem: PC Partner Limited Sapphire HD 4850 512MB GDDR3 PCI-E Dual Slot Fansink
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd-hda-intel
03:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)
	Subsystem: Micro-Star International Co., Ltd. Device 7673
	Kernel driver in use: xhci_hcd
04:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 01)
	Kernel modules: shpchp
06:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)
	Subsystem: Micro-Star International Co., Ltd. Device 7673
	Kernel driver in use: xhci_hcd
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
	Subsystem: Micro-Star International Co., Ltd. Device 7673
	Kernel driver in use: r8169
	Kernel modules: r8169
08:00.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6315 Series Firewire Controller (rev 01)
	Subsystem: Micro-Star International Co., Ltd. Device 673d
	Kernel driver in use: firewire_ohci
	Kernel modules: firewire-ohci

sudo lshw -C network:

  *-network               
       description: Ethernet interface
       produit: RTL8111/8168B PCI Express Gigabit Ethernet controller
       fabriquant: Realtek Semiconductor Co., Ltd.
       identifiant matériel: 0
       information bus: pci@0000:07:00.0
       nom logique: eth0
       version: 06
       numéro de série: 8c:89:a5:6c:d4:f6
       taille: 10Mbit/s
       capacité: 1Gbit/s
       bits: 64 bits
       horloge: 33MHz
       fonctionnalités: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       ressources: irq:51 portE/S:d000(taille=256) mémoire:d0004000-d0004fff mémoire:d0000000-d0003fff
  *-network
       description: Interface réseau sans fil
       identifiant matériel: 3
       information bus: usb@2:1.2
       nom logique: wlan0
       numéro de série: 6c:fd:b9:45:66:42
       fonctionnalités: ethernet physical wireless
       configuration: broadcast=yes driver=ath9k_htc driverversion=3.2.0-31-generic firmware=1.3 ip=192.168.254.7 link=yes multicast=yes wireless=IEEE 802.11bgn

lsmod:

Module                  Size  Used by
rfcomm                 47604  0 
parport_pc             32866  1 
ppdev                  17113  0 
bnep                   18281  2 
bluetooth             180104  10 rfcomm,bnep
vesafb                 13844  1 
arc4                   12529  2 
snd_hda_codec_hdmi     32474  1 
snd_hda_codec_realtek   224173  1 
dm_multipath           23230  0 
mxm_wmi                12979  0 
snd_hda_intel          33773  5 
snd_hda_codec         127706  3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep              13668  1 snd_hda_codec
snd_pcm                97188  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq_midi           13324  0 
snd_rawmidi            30748  1 snd_seq_midi
ath9k_htc              92738  0 
mac80211              506816  1 ath9k_htc
snd_seq_midi_event     14899  1 snd_seq_midi
ath9k_common           14053  1 ath9k_htc
ath9k_hw              411151  2 ath9k_htc,ath9k_common
ath                    24067  3 ath9k_htc,ath9k_common,ath9k_hw
psmouse                97362  0 
serio_raw              13211  0 
snd_seq                61896  2 snd_seq_midi,snd_seq_midi_event
cfg80211              205544  3 ath9k_htc,mac80211,ath
snd_timer              29990  2 snd_pcm,snd_seq
snd_seq_device         14540  3 snd_seq_midi,snd_rawmidi,snd_seq
snd                    78855  20 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
fglrx                3263886  176 
shpchp                 37277  0 
wmi                    19256  1 mxm_wmi
mac_hid                13253  0 
soundcore              15091  1 snd
mei                    41616  0 
snd_page_alloc         18529  2 snd_hda_intel,snd_pcm
lp                     17799  0 
parport                46562  3 parport_pc,ppdev,lp
usbhid                 47199  0 
hid                    99559  1 usbhid
dm_raid45              78155  0 
r8169                  62099  0 
firewire_ohci          41000  0 
firewire_core          63558  1 firewire_ohci
crc_itu_t              12707  1 firewire_core
xor                    12894  1 dm_raid45
dm_mirror              22203  0 
dm_region_hash         20918  1 dm_mirror
dm_log                 18564  3 dm_raid45,dm_mirror,dm_region_hash

iwconfig:

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"LEANNE"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 08:76:FF:CB:52:95   
          Bit Rate=117 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=69/70  Signal level=-41 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

eth0      no wireless extensions.

ifconfig:

eth0      Link encap:Ethernet  HWaddr 8c:89:a5:6c:d4:f6  
          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:51 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:1751 erreurs:0 :0 overruns:0 frame:0
          TX packets:1751 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:177808 (177.8 KB) Octets transmis:177808 (177.8 KB)

wlan0     Link encap:Ethernet  HWaddr 6c:fd:b9:45:66:42  
          inet adr:192.168.254.7  Bcast:192.168.254.255  Masque:255.255.255.0
          adr inet6: fe80::6efd:b9ff:fe45:6642/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:37305 erreurs:0 :0 overruns:0 frame:0
          TX packets:24826 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:38883899 (38.8 MB) Octets transmis:4914859 (4.9 MB)

sudo iwlist scan:

lo        Interface doesn't support scanning.

wlan0     Scan completed :
          Cell 01 - Address: 08:76:FF:CB:52:95
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=67/70  Signal level=-43 dBm  
                    Encryption key:on
                    ESSID:"LEANNE"
                    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
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000003aa542e084
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 00064C45414E4E45
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 03010B
                    IE: Unknown: 2A0104
                    IE: Unknown: 2F0104
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1A1C181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D160B001700000000000000000000000000000000000000
                    IE: Unknown: DD09001018020600050000
                    IE: Unknown: DD180050F2020101080003A4000027A4000042435E0062322F00

eth0      Interface doesn't support scanning.

uname -r -m :

3.2.0-31-generic x86_64

cat  /etc/network/interfaces:

auto lo
iface lo inet loopback

nm-tool:

NetworkManager Tool

State: connected (global)

- Device: wlan0  [LEANNE] ------------------------------------------------------
  Type:              802.11 WiFi
  Driver:            ath9k_htc
  State:             connected
  Default:           yes
  HW Address:        6C:FD:B9:45:66:42

  Capabilities:
    Speed:           78 Mb/s

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

  Wireless Access Points (* = current AP)
    *LEANNE:         Infra, 08:76:FF:CB:52:95, Freq 2462 MHz, Rate 54 Mb/s, Strength 80 WEP

  IPv4 Settings:
    Address:         192.168.254.7
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.254.1

    DNS:             195.238.2.21
    DNS:             195.238.2.22


- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             unavailable
  Default:           no
  HW Address:        8C:89:A5:6C:D4:F6

  Capabilities:
    Carrier Detect:  yes

  Wired Properties
    Carrier:         off

sudo rfkill list:

0: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no

Merci de votre aide.