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Comment faire fonctionner le wifi sur mon ordinateur portable HP Pavilion dv2000?

J'ai vu de nombreuses questions concernant le même problème, mais je n'ai pas pu trouver de solution. Je suis confronté au même problème que mon wifi ne fonctionne pas dans Ubuntu 11.04, mais fonctionne parfaitement avec Windows 7.

MODIFIER 

sahil@sahil:~$ lspci
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 02)
00:1c.2 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 3 (rev 02)
00:1c.3 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 4 (rev 02)
00:1d.0 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 02)
00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 02)
05:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
08:08.0 Ethernet controller: Intel Corporation PRO/100 VE Network Connection (rev 02)
08:09.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller
08:09.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 19)
08:09.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 0a)
08:09.3 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 05)

sahil@sahil:~$ lsusb
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 15d9:0a4c Trust International B.V. 
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 0c45:62c0 Microdia Sonix USB 2.0 Camera
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

sahil@sahil:~$ Sudo lshw -class network
[Sudo] password for sahil: 
  *-network DISABLED     
       description: Wireless interface
       product: PRO/Wireless 3945ABG [Golan] Network Connection
      vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:05:00.0
       logical name: wlan0
       version: 02
       serial: 00:13:02:c2:ba:22
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwl3945 driverversion=2.6.38-11-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11abg
       resources: irq:43 memory:d4000000-d4000fff
  *-network
       description: Ethernet interface
       product: PRO/100 VE Network Connection
       vendor: Intel Corporation
       physical id: 8
       bus info: pci@0000:08:08.0
       logical name: eth0
       version: 02
       serial: 00:16:d3:09:de:80
       size: 100Mbit/s
       capacity: 100Mbit/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=e100 driverversion=3.5.24-k2-NAPI duplex=full firmware=N/A ip=192.168.1.8 latency=66 link=yes maxlatency=56 mingnt=8 multicast=yes port=MII speed=100Mbit/s
       resources: irq:20 memory:d4100000-d4100fff ioport:3000(size=64)
11.04wirelesshardwarelaptop
1
Sahil Grover

La trace indique que votre carte réseau est "désactivée".

Cela se produit lorsque la carte sans fil dispose d'un interrupteur pour la désactiver - il s'agit d'un interrupteur physique ou d'un interrupteur de type Fn +.

Si vous n'identifiez pas le commutateur, exécutez ce qui suit:

rfkill list

Cela devrait signaler tous les appareils sans fil comme "NON" - c'est-à-dire non bloqués.

Par exemple, pour mon ordinateur portable, les résultats sont les suivants:

0: Acer-wireless: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

Si mon réseau sans fil disait "Oui", je lancerais:

Sudo rfkill unblock Acer-wireless; Sudo rfkill unblock wifi; Sudo rfkill unblock all

Remplacez évidemment "Acer-wireless" par le nom de votre LAN sans fil comme indiqué dans rfkill list

3
fossfreedom