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Wifi Intel Centrino N-2230 ne fonctionne pas sur Dell Inspiron 17r SE sur Ubuntu 14.04 LTS

Je devais réinstaller mon système Ubuntu car il ne fonctionnait pas correctement. Je l'ai donc fait avec une installation USB et j'ai conservé mon ancien/home. Le wifi fonctionnait bien sur mon système 14.10 et même en Live CD, mais je suis maintenant arrivé à 14.04 LTS et ne fonctionne pas du tout. Quels sont les packages et que je dois télécharger pour que mon wifi fonctionne?

    ########## wireless info START ##########

Report from: 27 Jan 2015 16:10 BRST -0200

Booted last: 27 Jan 2015 15:15 BRST -0200

Script from: 20 Sep 2014 23:04 UTC +0000

##### release ###########################

Distributor ID: Ubuntu
Description:    Ubuntu 14.10
Release:    14.10
Codename:   utopic

##### kernel ############################

Linux 3.16.0-29-generic #39-Ubuntu SMP Mon Dec 15 22:27:29 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, persistent, quiet, splash, vt.handoff=7

##### desktop ###########################

Ubuntu

##### lspci #############################

02:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 2230 [8086:0887] (rev c4)
    Subsystem: Intel Corporation Centrino Wireless-N 2230 BGN [8086:4462]

03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
    Subsystem: Dell Device [1028:0578]
    Kernel driver in use: r8169

##### lsusb #############################

Bus 002 Device 007: ID 8087:07da Intel Corp. 
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 064e:8126 Suyin Corp. 
Bus 001 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 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 003 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

##### PCMCIA card info ##################

##### rfkill ############################

##### lsmod #############################

##### interfaces ########################

auto lo
iface lo inet loopback

##### ifconfig ##########################

eth0      Link encap:Ethernet  HWaddr <MAC 'eth0' [IF]>  
          inet addr:192.168.1.7  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::5ef9:ddff:fe5b:abfb/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:592856 errors:0 dropped:0 overruns:0 frame:0
          TX packets:338862 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:863872430 (863.8 MB)  TX bytes:25383046 (25.3 MB)

##### iwconfig ##########################

eth0      no wireless extensions.

lo        no wireless extensions.

##### route #############################

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 eth0
192.168.1.0     0.0.0.0         255.255.255.0   U     1      0        0 eth0

##### resolv.conf #######################

nameserver 127.0.1.1
search Home

##### nm-tool ###########################

NetworkManager Tool

State: connected (global)

- Device: eth0  [Wired connection 1] -------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             connected
  Default:           yes
  HW Address:        <MAC 'eth0' [IF]>

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

  Wired Properties
    Carrier:         on

  IPv4 Settings:
    Address:         deleted
    Prefix:          24 (255.255.255.0)
    Gateway:         deleted

    DNS:             deleted

##### NetworkManager.state ##############

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true

##### NetworkManager.conf ###############

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false

##### NetworkManager profiles ###########

[[/etc/NetworkManager/system-connections/dritgodt]] (600 root)
[connection] id=dritgodt | type=802-11-wireless
[802-11-wireless] ssid=dritgodt | mac-address=<MAC address>
[ipv4] method=auto
[ipv6] method=auto

##### iw reg get ########################

nl80211 not found.

##### iwlist channels ###################

eth0      no frequency information.

lo        no frequency information.

##### iwlist scan #######################

eth0      Interface doesn't support scanning.

lo        Interface doesn't support scanning.

##### module infos ######################

##### module parameters #################

##### /etc/modules ######################

lp
rtc

##### modprobe options ##################

[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci

[/etc/modprobe.d/blacklist-bcm43.conf]
blacklist b43
blacklist b43legacy
blacklist ssb
blacklist bcm43xx
blacklist brcm80211
blacklist brcmfmac
blacklist brcmsmac
blacklist bcma

[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist AMD76x_edac
blacklist b43
blacklist b43legacy
blacklist bcma
blacklist ndiswrapper

[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off

[/etc/modprobe.d/iwlwifi.conf]
options iwlwifi 11n_disable=0

[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en

##### rc.local ##########################

exit 0

##### pm-utils ##########################

[/etc/pm/sleep.d/10_grub-common.dpkg-new] (755 root)
case "$1" in
    thaw)
        [ -s /boot/grub/grubenv ] || rm -f /boot/grub/grubenv
        mkdir -p /boot/grub
        grub-editenv /boot/grub/grubenv unset recordfail
        ;;
esac

##### udev rules ########################

[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x10ec:0x8136 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x8086:0x0887 (iwlwifi)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"

##### dmesg #############################

########## wireless info END ############
    lspci | grep -i wireless

02:00.0 Network controller: Intel Corporation Centrino Wireless-N 2230 (rev c4)


lspci -vv -s 02:00.0

    02:00.0 Network controller: Intel Corporation Centrino Wireless-N 2230 (rev c4)
        Subsystem: Intel Corporation Centrino Wireless-N 2230 BGN
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 11
        Region 0: Memory at f1500000 (64-bit, non-prefetchable) [size=8K]
        Capabilities: <access denied>
14.04wirelessnetworkingdriversintel-wireless
2
ovrwngtvity

Le module ne se charge pas, donc gksudo gedit /etc/modprobe.d/iwlwifi.conf Supprimez ce qui existe et ajoutez remove iwlwifi \ (/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \ && /sbin/modprobe -r mac80211 options iwlwifi 11n_disable=8 Enregistrer, quittez le programme et Sudo modprobe -v iwlwifi ou redémarrez pour voir s'il fonctionne.

3
Jeremy31