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#1 Le 14/07/2016, à 10:46

weedsky

Ma wifi n'apparait plus

Bonjour,

Suite à un problème de bluetooth, j'ai dû rentrer quelques commandes dans mon terminal. Le problème est que maintenant ma wifi n'apparait même plus sur la barre d'outil de mon ordinateur! Que faire ? La connexion filaire ne marche plus également !

:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.4 LTS"

:~$ lsusb
Bus 001 Device 004: ID 0a5c:216c Broadcom Corp. BCM43142A0 Bluetooth Device
Bus 001 Device 003: ID 0bda:5775 Realtek Semiconductor Corp. HP "Truevision HD" laptop camera
Bus 001 Device 002: ID 8087:8000 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lspci
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4)
00:1c.1 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 2 (rev e4)
00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4)
00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader (rev 01)
08:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 08)
0a:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 830M] (rev a2)

:~$ lspci -nn | grep -i net
08:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
09:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 08)

:~$ lspci -k
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
	Subsystem: Hewlett-Packard Company Device 2281
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
	Subsystem: Hewlett-Packard Company Device 2281
	Kernel driver in use: i915
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
	Subsystem: Hewlett-Packard Company Device 2281
	Kernel driver in use: snd_hda_intel
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
	Subsystem: Hewlett-Packard Company Device 2281
	Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
	Subsystem: Hewlett-Packard Company Device 2281
	Kernel driver in use: mei_me
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
	Subsystem: Hewlett-Packard Company Device 2281
	Kernel driver in use: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4)
	Kernel driver in use: pcieport
00:1c.1 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 2 (rev e4)
	Kernel driver in use: pcieport
00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
	Kernel driver in use: pcieport
00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4)
	Kernel driver in use: pcieport
00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4)

:~$ sudo lshw -C network
[sudo] password for chloe: 
  *-network               
       description: Network controller
       produit: BCM43142 802.11b/g/n
       fabriquant: Broadcom Corporation
       identifiant matériel: 0
       information bus: pci@0000:08:00.0
       version: 01
       bits: 64 bits
       horloge: 33MHz
       fonctionnalités: pm msi pciexpress bus_master cap_list
       configuration: driver=bcma-pci-bridge latency=0
       ressources: irq:18 mémoire:b5500000-b5507fff
  *-network DÉSACTIVÉ
       description: Ethernet interface
       produit: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
       fabriquant: Realtek Semiconductor Co., Ltd.
       identifiant matériel: 0
       information bus: pci@0000:09:00.0
       nom logique: eth0
       version: 08
       numéro de série: 6c:c2:17:72:e0:90
       taille: 100Mbit/s
       capacité: 100Mbit/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 autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full latency=0 link=no multicast=yes port=MII speed=100Mbit/s
       ressources: irq:61 portE/S:4000(taille=256) mémoire:b5404000-b5404fff mémoire:b5400000-b5403fff

:~$ lsmod
Module                  Size  Used by
bbswitch               13943  0 
bnep                   19624  2 
rfcomm                 69160  8 
snd_hda_codec_hdmi     46368  1 
snd_hda_codec_realtek    65904  1 
binfmt_misc            17468  1 
btusb                  32412  0 
bluetooth             391136  22 bnep,btusb,rfcomm
uvcvideo               80885  0 
videobuf2_vmalloc      13216  1 uvcvideo
videobuf2_memops       13362  1 videobuf2_vmalloc
videobuf2_core         40664  1 uvcvideo
videodev              134688  2 uvcvideo,videobuf2_core
hp_wmi                 14062  0 
sparse_keymap          13948  1 hp_wmi
intel_rapl             18773  0 
x86_pkg_temp_thermal    14205  0 
intel_powerclamp       14705  0 
coretemp               13435  0 
kvm                   455843  0 
crct10dif_pclmul       14289  0 
crc32_pclmul           13113  0 
snd_hda_intel          56611  5 
snd_hda_codec         193017  3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
snd_hwdep              13602  1 snd_hda_codec
aesni_intel            55624  0 
aes_x86_64             17131  1 aesni_intel
lrw                    13286  1 aesni_intel
snd_pcm               102099  3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
gf128mul               14951  1 lrw
glue_helper            13990  1 aesni_intel
ablk_helper            13597  1 aesni_intel
cryptd                 20359  2 aesni_intel,ablk_helper
snd_page_alloc         18710  2 snd_pcm,snd_hda_intel
snd_seq_midi           13324  0 
snd_seq_midi_event     14899  1 snd_seq_midi
snd_rawmidi            30144  1 snd_seq_midi
joydev                 17381  0 
snd_seq                61560  2 snd_seq_midi_event,snd_seq_midi
serio_raw              13462  0 
nvidia              10561198  43 
i915                  788212  4 
lpc_ich                21080  0 
rtsx_pci_ms            18151  0 
snd_seq_device         14497  3 snd_seq,snd_rawmidi,snd_seq_midi
memstick               16966  1 rtsx_pci_ms
snd_timer              29495  2 snd_pcm,snd_seq
mei_me                 18627  0 
mei                    82276  1 mei_me
snd                    69322  21 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi
drm_kms_helper         55071  1 i915
bcma                   52096  0 
shpchp                 37032  0 
soundcore              12680  1 snd
wmi                    19177  1 hp_wmi
hp_accel               26012  0 
lis3lv02d              20156  1 hp_accel
input_polldev          13896  1 lis3lv02d
video                  19476  1 i915
hp_wireless            12637  0 
drm                   303102  5 i915,drm_kms_helper,nvidia
intel_smartconnect     12619  0 
mac_hid                13205  0 
i2c_algo_bit           13413  1 i915
parport_pc             32701  0 
ppdev                  17671  0 
lp                     17759  0 

:~$ lsmod
Module                  Size  Used by
bbswitch               13943  0 
bnep                   19624  2 
rfcomm                 69160  8 
snd_hda_codec_hdmi     46368  1 
snd_hda_codec_realtek    65904  1 
binfmt_misc            17468  1 
btusb                  32412  0 
bluetooth             391136  22 bnep,btusb,rfcomm
uvcvideo               80885  0 
videobuf2_vmalloc      13216  1 uvcvideo
videobuf2_memops       13362  1 videobuf2_vmalloc
videobuf2_core         40664  1 uvcvideo
videodev              134688  2 uvcvideo,videobuf2_core
hp_wmi                 14062  0 
sparse_keymap          13948  1 hp_wmi
intel_rapl             18773  0 
x86_pkg_temp_thermal    14205  0 
intel_powerclamp       14705  0 
coretemp               13435  0 
kvm                   455843  0 
crct10dif_pclmul       14289  0 
crc32_pclmul           13113  0 
snd_hda_intel          56611  5 
snd_hda_codec         193017  3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
snd_hwdep              13602  1 snd_hda_codec
aesni_intel            55624  0 
aes_x86_64             17131  1 aesni_intel
lrw                    13286  1 aesni_intel
snd_pcm               102099  3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
gf128mul               14951  1 lrw
glue_helper            13990  1 aesni_intel
ablk_helper            13597  1 aesni_intel
cryptd                 20359  2 aesni_intel,ablk_helper
snd_page_alloc         18710  2 snd_pcm,snd_hda_intel
snd_seq_midi           13324  0 
snd_seq_midi_event     14899  1 snd_seq_midi
snd_rawmidi            30144  1 snd_seq_midi
joydev                 17381  0 
snd_seq                61560  2 snd_seq_midi_event,snd_seq_midi
serio_raw              13462  0 
nvidia              10561198  43 
i915                  788212  4 
lpc_ich                21080  0 
rtsx_pci_ms            18151  0 
snd_seq_device         14497  3 snd_seq,snd_rawmidi,snd_seq_midi
memstick               16966  1 rtsx_pci_ms
snd_timer              29495  2 snd_pcm,snd_seq
mei_me                 18627  0 
mei                    82276  1 mei_me
snd                    69322  21 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi
drm_kms_helper         55071  1 i915
bcma                   52096  0 
shpchp                 37032  0 
soundcore              12680  1 snd
wmi                    19177  1 hp_wmi
hp_accel               26012  0 
lis3lv02d              20156  1 hp_accel
input_polldev          13896  1 lis3lv02d
video                  19476  1 i915
hp_wireless            12637  0 
drm                   303102  5 i915,drm_kms_helper,nvidia
intel_smartconnect     12619  0 
mac_hid                13205  0 
i2c_algo_bit           13413  1 i915
parport_pc             32701  0 
ppdev                  17671  0 
lp                     17759  0 
parport                42348  3 lp,ppdev,parport_pc
rtsx_pci_sdmmc         23274  0 
psmouse               106692  0 
ahci                   34091  2 
libahci                32716  1 ahci
r8169                  71677  0 
rtsx_pci               46245  2 rtsx_pci_ms,rtsx_pci_sdmmc
mii                    13934  1 r8169

parport                42348  3 lp,ppdev,parport_pc
rtsx_pci_sdmmc         23274  0 
psmouse               106692  0 
ahci                   34091  2 
libahci                32716  1 ahci
r8169                  71677  0 
rtsx_pci               46245  2 rtsx_pci_ms,rtsx_pci_sdmmc
mii                    13934  1 r8169


	Kernel driver in use: pcieport
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
	Subsystem: Hewlett-Packard Company Device 2281
	Kernel driver in use: ehci-pci
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
	Subsystem: Hewlett-Packard Company Device 2281
	Kernel driver in use: lpc_ich
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
	Subsystem: Hewlett-Packard Company Device 2281
	Kernel driver in use: ahci
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
	Subsystem: Hewlett-Packard Company Device 2281
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader (rev 01)
	Subsystem: Hewlett-Packard Company Device 2281
	Kernel driver in use: rtsx_pci
08:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
	Subsystem: Hewlett-Packard Company Device 2230
	Kernel driver in use: bcma-pci-bridge
09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 08)
	Subsystem: Hewlett-Packard Company Device 2281
	Kernel driver in use: r8169
0a:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 830M] (rev a2)
	Subsystem: Hewlett-Packard Company Device 2281
	Kernel driver in use: nvidia

:~$ ifconfig
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:65536  Metric:1
          Packets reçus:692 erreurs:0 :0 overruns:0 frame:0
          TX packets:692 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:53920 (53.9 KB) Octets transmis:53920 (53.9 KB)

:~$ sudo iwlist scan
eth0      Interface doesn't support scanning.

lo        Interface doesn't support scanning.

:~$ uname -r -m
3.13.0-83-generic x86_64

:~$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto eth0
iface default inet dhcp
auto wlanO
wpa-ssid NEUF-BFF0
wp-psk ibnovotdefhebeulweg3 

:~$ nm-tool

** (process:3387): WARNING **: Could not initialize NMClient /org/freedesktop/NetworkManager: The name org.freedesktop.NetworkManager was not provided by any .service files

NetworkManager Tool

State: unknown


** (process:3387): WARNING **: error: could not connect to NetworkManager

:~$ sudo rfkill list
0: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no

:~$ nmcli connection show
Usage: nmcli connection { COMMAND | help }
  COMMAND := { list | status | up | down | delete }

  list [id <id> | uuid <id>]
  status [id <id> | uuid <id> | path <path>]
  up id <id> | uuid <id> [iface <iface>] [ap <BSSID>] [--nowait] [--timeout <timeout>]
  down id <id> | uuid <id>
  delete id <id> | uuid <id>

Erreur : commande « con » « show » non valide.

:~$ cat /var/lib/NetworkManager.state
cat: /var/lib/NetworkManager.state: Aucun fichier ou dossier de ce type

Merci de vos réponses !

Hors ligne

#2 Le 14/07/2016, à 23:36

xubu1957

Re : Ma wifi n'apparait plus

Bonjour,

En version 14.04, d'abord essayer la solution de Libellule19,
reprise dans le post # 21 de cette discussion : forum.ubuntu-fr.org/viewtopic.php?pid=21517510#p21517510
pour rétablir la connexion !


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