Probleme wifi sur acer aspire 5313-2077

[ven mai 15 - 18:27:31] @~/Bureau : cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=8.04
DISTRIB_CODENAME=hardy
DISTRIB_DESCRIPTION="Ubuntu 8.04.2"
[ven mai 15 - 18:27:51] @~/Bureau :
18:29:29 - ven mai 15 ~/Bureau : lsusb
Bus 007 Device 003: ID 10d6:1101 Actions Semiconductor Co., Ltd 
Bus 007 Device 001: ID 0000:0000  
Bus 006 Device 001: ID 0000:0000  
Bus 005 Device 001: ID 0000:0000  
Bus 004 Device 001: ID 0000:0000  
Bus 003 Device 001: ID 0000:0000  
Bus 002 Device 001: ID 0000:0000  
Bus 001 Device 001: ID 0000:0000  
18:29:37 - ven mai 15 ~/Bureau : lspci 
00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03)
05:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express (rev 02)
06:00.0 Ethernet controller: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter (rev 01)
18:29:53 - ven mai 15 ~/Bureau : 18:29:53 - ven mai 15 ~/Bureau : sudo lshw -C network
sudo: unable to resolve host alamina-laptop
  *-network               
       description: Ethernet interface
       product: NetLink BCM5906M Fast Ethernet PCI Express
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:05:00.0
       logical name: eth0
       version: 02
       serial: 00:1b:38:6f:26:1f
       size: 100MB/s
       capacity: 100MB/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.86 duplex=full ip=192.168.200.251 latency=0 link=yes module=tg3 multicast=yes port=twisted pair speed=100MB/s
  *-network UNCLAIMED
       description: Ethernet controller
       product: AR242x 802.11abg Wireless PCI Express Adapter
       vendor: Atheros Communications Inc.
       physical id: 0
       bus info: pci@0000:06:00.0
       version: 01
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list
       configuration: latency=0
18:30:50 - ven mai 15 ~/Bureau : 


18:32:35 - ven mai 15 --> ~/Bureau : lsmod
Module                  Size  Used by
nls_iso8859_1           4992  1
nls_cp437               6656  1
vfat                   14464  1
fat                    54556  1 vfat
usb_storage            73792  1
libusual               19236  1 usb_storage
binfmt_misc            12808  1
rfcomm                 41744  2
l2cap                  25728  13 rfcomm
bluetooth              61028  4 rfcomm,l2cap
ppdev                  10372  0
cpufreq_ondemand        9740  0
cpufreq_stats           7104  0
freq_table              5536  2 cpufreq_ondemand,cpufreq_stats
cpufreq_userspace       5284  0
cpufreq_powersave       2688  0
cpufreq_conservative     8712  0
container               5632  0
sbs                    15112  0
sbshc                   7680  1 sbs
dock                   11280  0
af_packet              23812  2
iptable_filter          3840  0
ip_tables              14820  1 iptable_filter
x_tables               16132  1 ip_tables
parport_pc             36260  0
lp                     12324  0
parport                37832  3 ppdev,parport_pc,lp
joydev                 13120  0
acer_acpi              18112  0
led_class               6020  1 acer_acpi
evdev                  13056  8
snd_hda_intel         346136  3
snd_pcm_oss            42144  0
snd_mixer_oss          17920  1 snd_pcm_oss
snd_pcm                78596  2 snd_hda_intel,snd_pcm_oss
snd_page_alloc         11400  2 snd_hda_intel,snd_pcm
snd_hwdep              10500  1 snd_hda_intel
snd_seq_dummy           4868  0
battery                14212  0
snd_seq_oss            35584  0
snd_seq_midi            9376  0
wmi_acer                9644  1 acer_acpi
ac                      6916  0
serio_raw               7940  0
snd_rawmidi            25760  1 snd_seq_midi
video                  19856  0
output                  4736  1 video
psmouse                40336  0
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
ndiswrapper           192920  0
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
button                  9232  0
snd                    56996  17 snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_hwdep,snd_seq_dummy,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
pcspkr                  4224  0
intel_agp              25492  1
soundcore               8800  1 snd
iTCO_wdt               13092  0
iTCO_vendor_support     4868  1 iTCO_wdt
shpchp                 34452  0
pci_hotplug            30880  1 shpchp
agpgart                34760  2 intel_agp
ext3                  136840  1
jbd                    48404  1 ext3
mbcache                 9600  1 ext3
sr_mod                 17956  0
cdrom                  37408  1 sr_mod
sg                     36880  0
sd_mod                 30720  3
ata_piix               19588  0
pata_acpi               8320  0
ahci                   28548  1
ata_generic             8324  0
libata                159600  4 ata_piix,pata_acpi,ahci,ata_generic
scsi_mod              151436  5 usb_storage,sr_mod,sg,sd_mod,libata
tg3                   116228  0
ehci_hcd               37900  0
uhci_hcd               27024  0
usbcore               146412  6 usb_storage,libusual,ndiswrapper,ehci_hcd,uhci_hcd
thermal                16796  0
processor              36488  2 thermal
fan                     5636  0
fbcon                  42912  0
tileblit                3456  1 fbcon
font                    9472  1 fbcon
bitblit                 6784  1 fbcon
softcursor              3072  1 bitblit
fuse                   50708  3
18:31:50 - ven mai 15 ~/Bureau : iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

18:33:43 - ven mai 15 ~/Bureau : ifconfig
eth0      Link encap:Ethernet  HWaddr 00:1b:38:6f:26:1f  
          inet adr:192.168.200.251  Bcast:192.168.255.255  Masque:255.255.0.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:1003 erreurs:0 :0 overruns:0 frame:0
          TX packets:1395 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:785892 (767.4 KB) Octets transmis:167693 (163.7 KB)
          Interruption:18 

lo        Link encap:Boucle locale  
          inet adr:127.0.0.1  Masque:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          Packets reçus:56 erreurs:0 :0 overruns:0 frame:0
          TX packets:56 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:5802 (5.6 KB) Octets transmis:5802 (5.6 KB)


18:34:03 - ven mai 15 ~/Bureau : sudo iwlist scan
sudo: unable to resolve host alamina-laptop
lo        Interface doesn't support scanning.

eth0      Interface doesn't support scanning.
18:34:31 - ven mai 15 ~/Bureau : uname -r -m 
2.6.24-24-generic i686
18:35:01 - ven mai 15 ~/Bureau : cat /etc/network/interfaces
auto lo
iface lo inet loopback
auto eth1
iface eth1 inet dhcp
    wireless-essid Mon_EssiD
    wireless-key 1234567890ABCDEF
    
18:35:36 - ven mai 15 ~/Bureau : nm-tool

NetworkManager Tool

State: connected

- Device: eth0 ----------------------------------------------------------------
  NM Path:           /org/freedesktop/NetworkManager/Devices/eth0
  Type:              Wired
  Driver:            tg3
  Active:            yes
  HW Address:        00:1B:38:6F:26:1F

  Capabilities:
    Supported:       yes
    Carrier Detect:  yes
    Speed:           100 Mb/s

  Wired Settings
    Hardware Link:   yes

  IP Settings:
    IP Address:      192.168.200.251
    Subnet Mask:     255.255.0.0
    Broadcast:       192.168.255.255
    Gateway:         192.168.0.1
    Primary DNS:     192.168.0.1
    Secondary DNS:   147.210.253.1