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#1 Le 13/07/2013, à 14:47
- Fred_Gasp
Perte de connexion wifi
Bonjour,
Le problème à l'air standard mais je suis incapable de le régler seul. Suite à une mise à jour effectuée hier de Ubuntu 12.04, mon ordinateur ne capte plus aucun réseau wifi.
Voilà le résultat des lignes de commande demandées:
pierre@pierre:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.2 LTS"
pierre@pierre:~$ 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 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 003 Device 002: ID 0bda:8723 Realtek Semiconductor Corp.
pierre@pierre:~$ lspci
00:00.0 Host bridge: Intel Corporation Ivy Bridge DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4)
00:1c.2 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 3 (rev c4)
00:1c.3 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 4 (rev c4)
00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device 8723
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5289 (rev 01)
03:00.2 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 0a)
pierre@pierre:~$ lspci -nn|grep -i net
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:8723]
03:00.2 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 0a)
pierre@pierre:~$ lspci -k
00:00.0 Host bridge: Intel Corporation Ivy Bridge DRAM Controller (rev 09)
Subsystem: CLEVO/KAPOK Computer Device 0240
Kernel driver in use: agpgart-intel
00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09)
Subsystem: CLEVO/KAPOK Computer Device 0240
Kernel driver in use: i915
Kernel modules: i915
00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04)
Subsystem: CLEVO/KAPOK Computer Device 0240
Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04)
Subsystem: CLEVO/KAPOK Computer Device 0240
Kernel driver in use: mei
Kernel modules: mei
00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04)
Subsystem: CLEVO/KAPOK Computer Device 0240
Kernel driver in use: ehci_hcd
00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04)
Subsystem: CLEVO/KAPOK Computer Device 0240
Kernel driver in use: snd_hda_intel
Kernel modules: snd-hda-intel
00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.2 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 3 (rev c4)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.3 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 4 (rev c4)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04)
Subsystem: CLEVO/KAPOK Computer Device 0240
Kernel driver in use: ehci_hcd
00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04)
Subsystem: CLEVO/KAPOK Computer Device 0240
Kernel modules: iTCO_wdt
00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] (rev 04)
Subsystem: CLEVO/KAPOK Computer Device 0240
Kernel driver in use: ahci
00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04)
Subsystem: CLEVO/KAPOK Computer Device 0240
Kernel modules: i2c-i801
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device 8723
Subsystem: Realtek Semiconductor Co., Ltd. Device 0726
Kernel driver in use: rtl8723e
Kernel modules: rtl8723e
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5289 (rev 01)
Subsystem: CLEVO/KAPOK Computer Device 0240
Kernel driver in use: rts_bpp
Kernel modules: rts_bpp
03:00.2 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 0a)
Subsystem: CLEVO/KAPOK Computer Device 0240
Kernel driver in use: r8169
Kernel modules: r8169
pierre@pierre:~$ sudo lshw -C network
*-network DÉSACTIVÉ
description: Interface réseau sans fil
produit: Realtek Semiconductor Co., Ltd.
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:02:00.0
nom logique: wlan0
version: 00
numéro de série: 2c:d0:5a:7b:26:a5
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8723e driverversion=3.2.0-49-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
ressources: irq:18 portE/S:e000(taille=256) mémoire:f7d00000-f7d03fff
*-network
description: Ethernet interface
produit: RTL8111/8168B PCI Express Gigabit Ethernet controller
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0.2
information bus: pci@0000:03:00.2
nom logique: eth0
version: 0a
numéro de série: 00:90:f5:e6:97:b1
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=N/A latency=0 link=no multicast=yes port=MII speed=10Mbit/s
ressources: irq:42 portE/S:d000(taille=256) mémoire:f0004000-f0004fff mémoire:f0000000-f0003fff
pierre@pierre:~$ lsmod
Module Size Used by
snd_hda_codec_hdmi 32474 1
snd_hda_codec_via 51474 1
joydev 17693 0
arc4 12529 2
snd_hda_intel 33719 3
snd_hda_codec 127706 3 snd_hda_codec_hdmi,snd_hda_codec_via,snd_hda_intel
snd_hwdep 17764 1 snd_hda_codec
snd_pcm 97275 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq_midi 13324 0
snd_rawmidi 30748 1 snd_seq_midi
snd_seq_midi_event 14899 1 snd_seq_midi
rtl8723e 175439 0
parport_pc 32866 0
rtlwifi 118798 1 rtl8723e
mac80211 506862 2 rtl8723e,rtlwifi
rfcomm 47604 12
bnep 18281 2
snd_seq 61929 2 snd_seq_midi,snd_seq_midi_event
ppdev 17113 0
wmi 19256 0
i915 478239 3
psmouse 97485 0
btusb 18332 2
cfg80211 205774 2 rtlwifi,mac80211
snd_timer 29990 2 snd_pcm,snd_seq
bluetooth 180153 23 rfcomm,bnep,btusb
rts_bpp 353210 0
serio_raw 13211 0
snd_seq_device 14540 3 snd_seq_midi,snd_rawmidi,snd_seq
drm_kms_helper 46978 1 i915
drm 241971 4 i915,drm_kms_helper
snd 79041 16 snd_hda_codec_hdmi,snd_hda_codec_via,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 15091 1 snd
i2c_algo_bit 13423 1 i915
snd_page_alloc 18529 2 snd_hda_intel,snd_pcm
video 19651 1 i915
mei 41616 0
mac_hid 13253 0
lp 17799 0
parport 46562 3 parport_pc,ppdev,lp
r8169 62154 0
pierre@pierre:~$ iwconfig
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=off
Retry long limit:7 RTS thr=2347 B Fragment thr:off
Power Management:on
eth0 no wireless extensions.
pierre@pierre:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:90:f5:e6:97:b1
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:42 Adresse de base:0x6000
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:944 erreurs:0 :0 overruns:0 frame:0
TX packets:944 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:0
Octets reçus:77456 (77.4 KB) Octets transmis:77456 (77.4 KB)
pierre@pierre:~$ sudo iwlist scan
lo Interface doesn't support scanning.
wlan0 Interface doesn't support scanning : Network is down
eth0 Interface doesn't support scanning.
pierre@pierre:~$ uname -r -m
3.2.0-49-generic x86_64
pierre@pierre:~$ cat /etc/network/interfaces
auto lo
iface lo inet loopback
pierre@pierre:~$ nm-tool
NetworkManager Tool
State: disconnected
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: r8169
State: unavailable
Default: no
HW Address: 00:90:F5:E6:97:B1
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
- Device: wlan0 ----------------------------------------------------------------
Type: 802.11 WiFi
Driver: rtl8723e
State: unavailable
Default: no
HW Address: 2C:D0:5A:7B:26:A5
Capabilities:
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points
pierre@pierre:~$ sudo rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes
Hors ligne
#2 Le 13/07/2013, à 17:43
- toutafai
Re : Perte de connexion wifi
Salut,
ton wifi est désactivé . vérifie l'interrupteur ou la combinaison de touche pour activer ton wifi ( a faire de préférence dès la mise sous tension du portable et avant q'ubuntu ne soit démarré)
Tombé dans l'informatique étant petit, j'en ai fait mon métier. Utilisateur d'Ubuntu depuis novembre 2006, actuellement sous 20.04 x64 (Que d'évolution
depuis Dapper Drake ! Ça rajeunit pas ^^^).
Hors ligne
#3 Le 13/07/2013, à 18:30
- Fred_Gasp
Re : Perte de connexion wifi
Bonjour,
"Much ado about nothing". Merci beaucoup pour votre réponse, le problème est réglé.
Hors ligne
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